taxonID	type	description	language	source
03C787A14D45D22AE43AFA6BFAE4F900.taxon	materials_examined	Material. M 48 / 1 ­ 327: 1 stalk fragment (ZSM 20043082). 48 / 1 ­ 334: 3 stalk fragments (ZSM 20043081). M 48 / 1 ­ 337: 8 stalk fragments (ZSM 20043085), 1 stalk fragment (ZSM 20020069). M 48 / 1 ­ 339: 7 stalk fragments (ZSM 20043083). M 48 / 1 ­ 344: 1 stalk fragment (ZSM 20043084).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D45D22AE43AFA6BFAE4F900.taxon	discussion	Remarks. The available stalk fragments only allowed identification to family level.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D46D228E43AFE96FBD3F91C.taxon	materials_examined	Material. M 48 / 1 ­ 344: 1 calyx (ZSM 20043086).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D46D228E43AFE96FBD3F91C.taxon	description	Description. The specimen is small and damaged, only the radials and arms (up to Br 10) are preserved, the basals and the stalk are missing (Fig. 2 A). The calyx is about 1.7 mm wide. The five radials are smooth, about 0.7 mm high, have a proximal width of 0.5 mm and a distal width of 0.8 mm. Sharp­edged lateral flanges and a prominent crestlike keel characterise the first brachitaxis (IBr 1 and IBr 2) and the proximal brachials. On the axillaries (IBr 2) the keel is Y­shaped. In distal brachials the lateral flanges disappear and the crest­like keel is less prominent. The first brachitaxis is about 1.8 mm long and at the joint of IBr 1 and IBr 2 0.9 mm wide. Though indistinct, the first non­muscular joints are between brachials 1 + 2, 4 + 5 and 7 + 8. No pinnules were found (not developed yet?).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D46D228E43AFE96FBD3F91C.taxon	discussion	Remarks. Currently, there are two Atlantic Bathycrinus species recognized, viz B. aldrichianus Wyville Thomson, 1876 and B. gracilis Wyville Thomson, 1872 which both are similar in being " very serrated in profile " in contrast to the remaining Atlantic species which have " smooth and rounded ossicles and profiles " (Clark 1977: p. 167). The current specimen corresponds with both species in the ornamentation of the first brachitaxis and the proximal brachials, with a central keel and lateral flanges (Clark 1977, 1980; Macurda & Meyer 1976). Slight differences in the specificity of the ornamentation may be correlated with size (Clark 1977) and thus not sufficient to separate both species. The only character known to distinguish both species seems to be the position of the first pinnule on the arm. Bathycrinus gracilis has the first pinnule on brachials 10 to 12, while B. aldrichianus has the first pinnule on brachials 8 to 11 (Clark 1980). Due to the fact that the current specimen lacks pinnules, a reliable determination is not possible and the specimen is tentatively assigned to B. aldrichianus because of the geographical vicinity to other records of this species.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D46D228E43AFE96FBD3F91C.taxon	distribution	Distribution. Bathycrinus aldrichianus has been described from the north­western, the central and the southern Atlantic Ocean (Fig. 3), 3305 – 5860 m (Carpenter 1884; Clark 1908; Clark 1977; Gislén 1951; Macurda & Meyer 1976; herein), whereas B. gracilis seems to be restricted to the north­eastern Atlantic Ocean (Fig. 3), 2880 – 5330 m (Carpenter 1884; Clark 1977, 1980; Harvey et al. 1988; IFREMER BIOCEAN; Koehler 1909). FIGURE 2. (A) Bathycrinus cf. aldrichianus Wyville Thomson, 1876. Distal part of calyx with arms, basals and stalk missing (IBr 1, IBr 2 — first and second brachials of first brachitaxis). (B – E) Psychropotes semperiana Théel, 1882. Calcareous deposits. (B) Large crosses (damaged) from dorsal body wall, with four arms, central apophysis and downwardly bent hooks. (C) Large crosses (damaged) from dorsal body wall, with four arms and central apophysis (arrowheads). (D) Small crosses from dorsal body wall. (E) Rods and crosses from ventral body wall.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D48D226E43AFAF5FAF5FB61.taxon	materials_examined	Material. M 48 / 1 ­ 333: 1 specimen (ZSM 20043072). M 48 / 1 ­ 339: 1 specimen (ZSM 20020018). M 48 / 1 ­ 343: 1 specimen (ZSM 20043071).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D48D226E43AFAF5FAF5FB61.taxon	discussion	Remarks. The taxonomy, morphology and distribution of this subspecies has been described in detail by Hansen (1975). It is characterised by: 10 – 13 pairs of ventro­lateral tube feet in single rows; mid­ventral tube feet absent or rarely represented by a reduced pre­anal pair; dorsal papillae 5 – 10 pairs; ventro­lateral papillae 3 – 7 pairs; calcareous deposits are perforated plates, usually large and multilayered; dorsal plates 1.5 – 7.0 mm in diameter, ventral plates 0.5 – 4.0 mm. The investigated specimens fit with this diagnosis. The largest specimen (86 mm in length) has a single (?) small pre­anal tube foot, while there are no pre­anal tube feet present in the other specimens. This is the second record of this species for the South Atlantic Ocean and the known depth­range is increased from 4820 m to more than 5400 m.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D48D226E43AFAF5FAF5FB61.taxon	distribution	Distribution. (Fig. 4) This subspecies probably has a cosmopolitan distribution, except for the Arctic and Southern Ocean, 724 – 5426 m (Deichmann 1940; Grieg 1921; Hansen 1975; Hérouard 1902, 1923; IFREMER BIOCEAN; Koehler & Vaney 1905; Ohshima 1915; O'Loughlin 1998; Sibuet 1977; Sluiter 1901; Théel 1882, 1886 b; herein).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D49D224E43AFA14FB4CFE4F.taxon	materials_examined	Material. M 48 / 1 ­ 321: 2 specimens (ZSM 20043075).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D49D224E43AFA14FB4CFE4F.taxon	description	Description. Anteriorly, the specimens are more or less flat, while the posterior part of the body is elevated and gives rise to the unpaired dorsal appendage. The larger specimen is 79 mm long and 22 mm wide (across ventral sole), while the smaller specimen measures 53 mm in length and 17 mm across the ventral sole. Both are of a purple colour (preserved). The mouth and the anus are ventral and confined to the anterior and the posterior end of the body. There are 16 tentacles, with conspicuous, rounded discs. The ventral sole is delimited on both sides by a narrow brim (damaged for the most part), formed by basally fused tube feet. Mid­ventral tube feet are conical and restricted to a double row, which seems to be present (partly damaged) throughout the length of the ventral sole. The unpaired dorsal appendage arises from a dorsal bulge, which is situated one­seventh body length in the large specimen and one­fourth body length in the small specimen from the posterior end of the body. In both specimens, the dorsal appendage is more or less contracted and thus nothing can be said about the original size. The almost complete dorsal appendage of the large specimen ends in two long slender papillae, each about 18 mm long. Anterior to the dorsal bulge of the small specimen, are three pairs of short conical papillae (indistinct in the larger specimen). Calcareous deposits of the dorsal body wall are crosses of two types (Figs 2 B – D). The four arms of the larger type are smooth in their proximal parts and are equipped with irregularly placed spines close to their distal ends (Fig. 2 C). The high central apophysis is smooth and ends in three or four downwardly bent hooks (Fig. 2 B). Crosses of the second type are considerably smaller, have irregularly placed spines along the arms and a low and also spinous central apophysis (Fig. 2 D). The calcareous deposits of the ventral body wall are rods and crosses with irregularly placed spines (Fig. 2 E).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D49D224E43AFA14FB4CFE4F.taxon	discussion	Remarks. The two specimens described herein conform to the detailed description given by Hansen (1975) for this species. Very characteristic are the large cross­shaped deposits of the dorsal body wall with a high and smooth central apophysis, ending in three or four downwardly bent hooks, which are unique within the genus (Hansen 1975).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D49D224E43AFA14FB4CFE4F.taxon	distribution	Distribution. (Fig. 5) Northern and southern Atlantic Ocean, northern and western Indian Ocean, 2695 – 5610 m (Deichmann 1930, 1940; Hansen 1975; Hérouard 1902, 1923; IFREMER BIOCEAN; Madsen 1953; Sibuet 1977; Théel 1882; herein).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4BD222E43AFD36FB1BFB3F.taxon	materials_examined	Material. M 48 / 1 ­ 343: 2 specimens (ZSM 20043074).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4BD222E43AFD36FB1BFB3F.taxon	description	Description. The body is more or less flat, with a distinct brim along the lateral edges of the body, continuous with the velum (Fig. 6 A). The two specimens are 37 and 55 mm long and 12 and 24 mm wide. Preserved they are purple to dark purple (tentacle discs and around mouth). The ventral mouth is situated on an anterior bulge­like enhancement, while the posterior anus opens dorsally above the posterior tube feet. Ten conspicuous tentacles encircle the mouth (larger specimen: 7 preserved, smaller specimen: 1 preserved). The tentacle discs are large, almost circular in outline, and have an irregular margin, due to several retractile lobes. The posterior three­fifths of the ventral sole are bordered by 7 – 8 pairs of conspicuous conical tube feet. From anterior to posterior, they continuously decrease somewhat in size and become closer to each other. The anterior tube feet are well separated and situated on the ventral side of the specimen, while the posterior ones are in contact and are contiguous with the lateral brim. The most posterior pair of tube feet is considerably smaller than the preceding ones. The dorsal velum, continuous with the lateral brim, is conspicuous and composed of four basally fused papillae. The papillae are long and slender and the anterior pair is about twice as long as the posterior pair. A short distance from the velum there is a variable number of pairs of free papillae (1 – 3). Calcareous deposits of the body wall are primary crosses with a well developed stem, more or less bent arms and four high apophyses, one on each arm (Fig. 6 B). The arms and apophyses of the primary crosses are irregularly equipped with small spines. Usually, the apophyses are shorter than the arms, but not always. In addition to the common primary crosses, in the tentacles also large spinous crosses and rods are present (Fig. 6 C). Similar spinous crosses also do occur in the tube feet (Fig. 6 D).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4BD222E43AFD36FB1BFB3F.taxon	discussion	Remarks. In his revision of the family Elpidiidae, Gebruk (1990) synonymised the two species P. purpurea and P. ferruginea, till then recognised as valid (e. g. Hansen 1975). According to Gebruk, P. purpurea is characterised by the following features: calcareous deposits of dorsal body wall primary crosses of two types, both with four apophyses, which are usually shorter than arms, in one type arms are bent, while in the other type arms are about horizontal; dorsal velum large, papillae of velum free in their distal part. The current specimens fit with this diagnosis regarding the morphology of the dorsal velum, which is formed by four basally fused papillae. However, with reference to the supposed two types of primary crosses in the dorsal body wall, the current specimens differ somewhat. There are primary crosses with conspicuously bent arms as well as crosses with almost horizontal arms, but there are also intermediate forms with more or less bent arms. Likewise variable primary crosses are also present in the ventral body wall of both specimens investigated. It seems, that in reality these two " types " represent the extremes of a continuous range.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4BD222E43AFD36FB1BFB3F.taxon	distribution	Distribution. (Fig. 7) Northern and southern Atlantic Ocean, southern Indian Ocean, northern Pacific Ocean and Southern Ocean, 2800 – 5880 m (Agatep 1967; Gebruk 1990; Grieg 1921; IFREMER BIOCEAN; Madsen 1953; Perrier 1902; Théel 1882; herein).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4DD220E43AFAC1FE41FBE7.taxon	materials_examined	Material. Holotype (ZSM 20043073), FS " Meteor ", DIVA­ 1, station M 48 / 1 ­ 351, 16 ° 25.2 ' S, 5 ° 27.1 ' E, 5387 m to 16 ° 33.2 ' S, 5 ° 27.3 ' E, 5385 m, Agassiz trawl, 30 Jul, 2000.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4DD220E43AFAC1FE41FBE7.taxon	description	Description. The holotype is more or less ovoid (Figs 8 A – B), 35 mm long, about 10 mm wide (across ventral sole), and of a dirty­white colour (preserved). The mouth is ventral and the anus is terminal, dorsally of the ventral sole. Ten tentacles encompass the mouth, eight (?) of which are connected by a membrane, while at least the two posteriormost tentacles are free. Terminal discs of tentacles with numerous minute processes. Nine pairs of tube feet border the posterior two­thirds of the ventral sole (Figs 8 A – B). The anterior five pairs are conical and bear a terminal disc consisting of four lobes (Fig. 8 D). They are well separated from each other and slightly decrease in size from anterior to posterior. The remaining four pairs, all of about equal size, are clustered brim­like at the posterior end of the ventral sole. A conspicuous dorsal velum, about as long as the body, is situated close to the anterior end of the specimen (Figs 8 A, C). It is composed of four papillae, of which the long median pair are fully fused along their length, while the outer papillae are much shorter and separate in their distal part, forming small lateral lobes. A third pair of small and free papillae is present close to the base of the velum. A calcareous ring seems to be missing. The single polian vesicle is large. The unpaired left gonad consists of richly branched short tubules opening into a well developed common duct. The anterior part of the intestine is straight, while the posterior forms a loop. Calcareous deposits are straight or slightly curved spinous rods (Fig. 8 E), up to 470 long, which are present in the tentacles the dorsal papillae and the tube feet; but none were found in the body wall (some of the deposits are in the process of dissolving, due to acidic fixation fluid).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4DD220E43AFAC1FE41FBE7.taxon	discussion	Remarks. Achlyonice longicornis differs from all other known elpidiid species by the combined occurrence of the following two characteristics: the peculiar triangular velum with two small lateral lobes and the large spinous rods present in the tentacles, the dorsal papillae and the tube feet. Only one species is known to possess a somewhat similar velum, the single specimen of Peniagone stabilis Koehler and Vaney, 1905 collected in the Bay of Bengal. It is characterised by a triangular velum consisting of one large and two small papillae and a posterior lobated border of fused tube feet (Koehler & Vaney 1905). It differs from Achlyonice longicornis by the much shorter velum, which is only 5 mm high (with both specimens being of similar size) and by its calcareous deposits, which are four­armed and have one central apophysis and one apophysis on each arm. The generic assignment of the new species is somewhat ambiguous. Three out of five species of the genus Achlyonice Théel, 1879 and all species of the genus Ellipinion Hérouard, 1923 are known to possess rod­shaped, often spinous deposits and a velum. Ellipinion species differ from Achlyonice by the additional presence of small C­shaped deposits and constantly 10 tentacles. Hansen (1975) characterises Achlyonice as follows: tentacles 10 – 12; deposits tripartite, rod­shaped or absent; calcareous ring consisting of five isolated pieces, each having a varying number of arms. Absence of C­shaped deposits assigns the new species to Achlyonice rather than to Ellipinion. Within this genus there are two species, Achlyonice monactinica Ohshima, 1915 and Achlyonice myriamae Gebruk, 1997, which share some similarities with A. longicornis. All three have the anterior tentacles connected by a membrane and the calcareous deposits are rods (Ohshima 1915; Gebruk 1997). Most obviously, A. longicornis differs from A. myriamae and A. monactinica by: different tentacle numbers, both species have 12 tentacles as opposed to A. longicornis, which has only ten; its peculiar dominant triangular velum; the restriction of rod deposits to the tentacles, the dorsal papillae and the tube feet, which are present throughout the body wall in the other species. Furthermore, A. myriamae has in addition to rod deposits also tripartite deposits, which are lacking in A. monactinica as well as in A. longicornis.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4DD220E43AFAC1FE41FBE7.taxon	distribution	Distribution. (Fig. 7) So far, this species is only known from the type locality, Atlantic Ocean, Angola Basin, 5385 – 5387 m.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4DD220E43AFAC1FE41FBE7.taxon	etymology	Etymology. The name, longicornis, refers to the characteristic, horn­like shape of the dorsal velum.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4FD23DE43AFA8EFC97FE1F.taxon	materials_examined	Material. M 48 / 1 ­ 343: 1 Ψ (ZSM 20020019). M 48 / 1 ­ 347: 1 ɗ (ZSM 20043076). Additional Material. 1 Ψ (ZSM 20043140), FS " Meteor ", station M 3 / 24, Agassiz trawl 2, 42 ° 26.8 ' N, 14 ° 49.0 ' W to 42 ° 40.9 ' N, 14 ° 49.2 ' W, 5270 m, Agassiz trawl, 11 Mar, 1966, det. C. G. Ahearn (USNM), 2004.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4FD23DE43AFA8EFC97FE1F.taxon	description	Description. The specimens range from 76 to 100 mm in length and 24 to 54 mm in width. The body is more or less cylindrical with rounded anterior and posterior ends, of a dirty­white colour (preserved) and without encrusting foreign bodies. Mouth ventral, encompassed by 20 prominent brown tentacles, which often are retracted and thus difficult to make out. The anus is ventral in position, enclosed in an inconspicuous pygal furrow. Filiform tube feet, lacking a sucking disc, are found sparsely scattered on the ventral side (often visible as small brown spots) but could not be detected dorsally. The body wall is thick and rugose. The calcareous ring is prominent. Longitudinal muscles are flat and wide. There is a single ventral polian vesicle. The gonad consists of a tuft of branching tubules on both sides of the dorsal mesentery. The intestine forms a large loop, and the respiratory trees originate with a common trunk from the right side of the cloaca. Calcareous deposits are scarce. Isolated deposits are present in the tentacles, which are irregularly rod­like, sometimes bent, often branching and with a tendency to form an irregular network, resulting in few to several perforations (Fig. 9 A). No deposits could be detected in the body wall, in the tube feet, in the gonads nor in the respiratory trees.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4FD23DE43AFA8EFC97FE1F.taxon	discussion	Remarks. In an long­needed and extensive review of the pygal­furrowed Synallactidae (O'Loughlin & Ahearn 2005) all hitherto known species as well as several new species are described, and detailed information is presented, including their synonymy and distribution.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D4FD23DE43AFA8EFC97FE1F.taxon	distribution	Distribution. (Fig. 10) Northern and south­eastern Atlantic Ocean, northern and southern Pacific Ocean, 2610 – 5415 m (Heding 1935; IFREMER BIOCEAN; O'Loughlin & Ahearn 2005; Perrier 1902; Thandar 1999; herein).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D52D23BE43AFD86FC57FEC7.taxon	materials_examined	Material. M 48 / 1 ­ 333: 1 specimen (ZSM 20043068), 1 specimen (ZSM 20043069). M 48 / 1 ­ 349: 4 specimens (ZSM 20020025). M 48 / 1 ­ 351: 5 specimens (ZSM 20020028).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D52D23BE43AFD86FC57FEC7.taxon	description	Description. The specimens range from 24 to 63 mm in length, and 6 to 13 mm in width (at calcareous ring). The body is approximately cylindrical, with a tapering posterior end, resulting in a very short tail (only few millimetres long). Preserved specimens are dirty­white with a tinge of pink. Fifteen retracted tentacles encompass the terminal mouth. Likewise, the anus is terminal and in each radius there are few short anal papillae. The calcareous ring is solid, smooth and composed of five radial plates (Fig. 9 B: ldr, lvr), with prominent posterior projections and five much smaller interradial plates (Fig. 9 B: llir). The tentacle ampullae are short. Longitudinal muscle bands are undivided. There is one tubular polian vesicle in the left ventral radius. The single stone canal is long and embedded in the dorsal mesentery and has a large oval madreporite body close to the dorsal body wall. The gonad consists of tufts of branching, tubules on both sides of the dorsal mesentery. The intestine forms a large loop (as long as body) and the respiratory trees are conspicuous. The calcareous deposits of the body wall (Figs 9 C – D) and the tail (Figs 9 E – F) are exclusively tables with 3 – 9 holes and a large solid spire, derived from three fused pillars, with 4 – 6 terminal hooklets. The tables of the body wall in the current specimens on average range from 95 to 121 (Tab. 2) and usually have 4 or 5 holes, while the tables from the tail are smaller, on average 86 to 105 in diameter (Tab. 2) and have fewer holes (3 or 4). There are no phosphatic deposits, but anal teeth are present (Fig. 9 G).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D52D23BE43AFD86FC57FEC7.taxon	discussion	Remarks. The current specimens agree in all details with Molpadia liska as characterised by Pawson (1977): body wall and tail deposits similar, exclusively tables with solid spires composed of three fused pillars, with usually three perforations but often with more up to a maximum of eight. Table deposit diameters of the current specimens are also in accordance with the table sizes as presented by Pawson (Tab. 2). There is only one other species known to possess similar table deposits in the body wall and in the tail: Molpadia discors Pawson, 1977. This species differs from Molpadia liska by its invariable number of three holes per table, which in Molpadia liska may be up to eight or nine (Pawson 1977). Another closely related species, which may result in misidentifications, is Molpadia blakei (Théel, 1886), which with certainty is known from the northern Atlantic deep­sea (Pawson et al. 2001). This species differs from M. liska by the presence of fusiform rods (mean length: 256) in the tail, which are perforated by large holes and have a low spire (Pawson et al. 2001). TABLE 2. Molpadia liska Pawson, 1977. Means, standard deviations (in parentheses) and range of diameter of tables from body wall (D bw,) and from tail (D t,) compared to range of mean values as presented by Pawson (1977) for the type specimens. n — number of measurements. This is the first record of this species for the Atlantic Ocean, and the known depth range is considerably increased from 4740 to more than 5420 m.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D52D23BE43AFD86FC57FEC7.taxon	distribution	Distribution. (Fig. 11) South­eastern Atlantic Ocean, south­western Pacific Ocean and Southern Ocean, 3111 – 5426 m (Pawson 1977; herein).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D54D23BE43AFDC3FD76F8F5.taxon	materials_examined	Material. M 48 / 1 ­ 334: 1 specimen, 2 anterior fragments, 2 posterior fragments (ZSM 20043077). M 48 / 1 ­ 337: 1 posterior fragment (ZSM 20043079). M 48 / 1 ­ 343: 1 specimen, 2 posterior fragments (ZSM 20043070). M 48 / 1 ­ 347: 2 specimens, 1 anterior fragment, 3 posterior fragments (ZSM 20020023), 2 anterior fragments, 1 posterior fragment (ZSM 20043078). M 48 / 1 ­ 349: 4 specimens, 2 median fragments, 7 posterior fragments (ZSM 20020021). M 48 / 1 ­ 351: 4 specimens, 8 posterior fragments (ZSM 20020027), 3 anterior fragments, 1 median fragment (ZSM 20043080). Additional Material. 1 specimen (ZSM 20043139), FS " Polarstern ", ANDEEP III, station PS 67 / 016 ­ 5, 41 ° 07.5 ' S, 9 ° 56.3 ' E, 4723 m, giant box corer, 25 Jan, 2005. 6 specimens, 2 anterior fragments, 1 posterior fragment (ZSM 20043138), FS " Polarstern ", ANDEEP III, station PS 67 / 016 ­ 11, 41 ° 07.7 ' S, 9 ° 56.3 ' E, 4727 m to 41 ° 07.4 ' S, 9 ° 54.8 ' E, 4694 m, Agassiz trawl, 26 Jan, 2005.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D54D23BE43AFDC3FD76F8F5.taxon	discussion	Remarks. This species has been excellently reviewed by Pawson et al. (2003) including its synonymy, morphology and distribution. A quite characteristic feature of this species are the large calcareous deposits (after Pawson et al. 2003): anchors usually less than 700 long, but sometimes up to 1000, with branched stock and flukes with about six teeth; anchor plates up to 700 long, with 50 – 70 dentate holes. Pawson and his coauthors are convinced, that the giant pelagic larva, the so called Auricularia nudibranchiata Chun, 1896 is the larva of P. brychia. The specimens reported herein considerably enlarge the known distributional area of the species in the Atlantic Ocean (from about 16 ° S to 41 ° S), as well as the depth­range (from about 5000 m to more than 5400 m).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D54D23BE43AFDC3FD76F8F5.taxon	distribution	Distribution. (Fig. 12) This species probably has a cosmopolitan distribution, Atlantic Ocean, eastern and western Pacific Ocean, 869 – 5426 m (H. L. Clark 1908, 1920, 1924; Deichmann 1940; Gage et al. 1985; Harvey et al. 1988; Hérouard 1923; IFREMER BIOCEAN; Ludwig & Heding 1935; Madsen 1953; Pawson et al. 2003; Perrier 1902; Sibuet 1977; Théel 1886 a; herein).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D55D239E43AFB8FFACCFBB4.taxon	materials_examined	Material. M 48 / 1 ­ 347: 1 posterior fragment (ZSM 20020016). M 48 / 1 ­ 351: 2 posterior fragments (ZSM 20020015).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D55D239E43AFB8FFACCFBB4.taxon	discussion	Remarks. Gage and Billett (1986) provide an excellent description of this species, including detailed information on a variety of taxonomically important wheel parameters. Given that the current specimens have already been treated in more detail (Bohn 2005) the species is only shortly outlined: body about cylindrical, up to 31 mm long and 7 mm wide; tentacles 12, with four pairs of lateral digits; calcareous ring with 5 radial and 5 interradial plates; body wall with single layer of wheel deposits of the so­called siniotrochid type (Fig. 13 A); wheel diameter 414 (284 – 560); hub about half the diameter of the wheel, perforated by several holes; spokes 17 (12 – 25); inward­pointing teeth 42 (30 – 67); outward­pointing primary teeth 18 (11 – 31); outward­pointing secondary teeth 6 (0 – 29) (arrowheads in Fig. 13 A); simple rod deposits present in tentacles and around anus. Siniotrochus myriodontus closely resembles the north­western Atlantic Ocean S. phoxus Pawson, 1971 from which it differs by the presence of outward­pointing secondary teeth on the wheels.	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D55D239E43AFB8FFACCFBB4.taxon	distribution	Distribution. (Fig. 14) North­eastern Atlantic Ocean (Porcupine Seabight) and southeastern Atlantic Ocean, 3490 – 5389 m (Bohn 2005; Gage & Billett 1986). Species Depth (m) Source	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D57D237E43AFE99FC63FAC1.taxon	materials_examined	Material. M 48 / 1 ­ 340: Holotype (ZSM 20020017).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D57D237E43AFE99FC63FAC1.taxon	discussion	Remarks. This subspecies has been recently described in more detail (Bohn 2005) and is characterised by: body wall and tentacle bases with two types of wheel deposits, neolepidotrochid type wheels (Fig. 13 B) and myriotrochid type wheels (Fig. 13 C). Neolepidotrochid type wheels with variable number (up to 16) of outward­pointing secondary teeth (Fig. 12 B: arrowheads), not present in all wheels, but in the majority; edge of rim between two outward­pointing primary teeth roughly straight; neolepidotrochid type wheels from anterior body smaller (mean diameter: 111, range: 95 – 129), than wheels from posterior body (mean diameter: 140, range: 127 – 158) and with higher ratio of hub diameter to wheel diameter (mean: 40 %, range: 30 – 47 %) compared to wheels from posterior body (mean: 29 %, range: 22 – 36 %). Myriotrochid type wheels have a diameter of 130 (75 – 166), ratio of hub diameter to wheel diameter 21 % (18 – 26 %), spokes 10 (8 – 14).	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D57D237E43AFE99FC63FAC1.taxon	distribution	Distribution. (Fig. 14) Angola Basin in the south­eastern Atlantic Ocean, 5395 m. Species Atlantic Indian Pacific Southern Ocean Ocean Ocean Ocean N S N S N S	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
03C787A14D57D237E43AFE99FC63FAC1.taxon	description	Molpadia musculus Risso, 1826 + + + + + + + Molpadia blakei (Théel, 1886) + +	en	Bohn, Jens Michael (2006): Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA­ 1 expedition of FS " Meteor " (Cruise M 48 / 1). Zootaxa 1276: 1-31, DOI: 10.5281/zenodo.173337
