taxonID	type	description	language	source
03E78793F525FFBBFF5EFC0BD1CF1DBF.taxon	materials_examined	Material examined. one female, holotype (TVG 0901), two females, paratypes (TVG 0902, TVG 0905), DY 115 - 21 III Station 9, EPR, “ Precious Stone Mountain ” hydrothermal vent-field, 1.22 ° N 101.49 ° W, 1628 m depth, TVG, 2 nd November 2009.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
03E78793F525FFBBFF5EFC0BD1CF1DBF.taxon	description	Description of the holotype (female): Size large for the genus, leg span 43.1 mm. Trunk (Fig. 1 A, B) glabrous, dorsal segmentation lines raised, swollen, without dorsomedian tubercles. Lateral processes closelyspaced, separated by 0.25 – 0.3 times their diameters, with few short distal spines. Cephalon flaring from narrow neck to broad anterior. Ocular tubercle leaning towards anterior, with bifurcate tip, without eyes. Proboscis fusiform, longer than trunk, without constrictions. Abdomen downcurved, extending to midpart of second coxae of fourth pair of legs, with five or six pairs of short dorsal spines. Chelifores short, scape one-articled, about twice as long as wide, with five or six distal spines, two dorsodistal spines almost as long as scape diameter. Chelae atrophied to knobs, fingers reduced to tiny bumps. Palps (Fig. 1 D) seven-articled. First article broad, a truncate cone. Second article longest, slightly longer than fourth, with dorsal and lateral short setae. Third article short with numerous shorter setae and one longer than article diameter. Fourth article with row of erect long setae, three clearly longer than article diameter. Distal three articles very short, seventh longest, of decreasing diameters, with dorsal and distal long setae. Ovigers (Fig. 1 C) with few spines and setae. Second article longest, fourth article slightly longer than fifth, and with short lateral setae. Sixth article with short ventral setae. Seventh and eighth articles with dorsal setae longer than article diameters. Seventh, eighth, ninth and tenth with small denticulate spines in formula 2: 2: 1: 2. Third leg (Fig. 1 G to H) first coxa with short distal setae. Second coxa distally swollen, longer than first or third coxae, mid-dorsally raised with two longer setae, ventrally with shorter distal setae. Third coxa dorsally with two raised eminences bearing short setae. Femur with row of dorsal and lateral longer setae, and with distal ring of shorter setae, one almost as long as article diameter. Tibiae with dorsal, lateral and ventral setae mostly shorter than article diameters, but some longer than article diameters. Tarsus nearly triangular, with one dorsal spine and 6 – 8 ventral spines, of length increasing distally. Propodus cylindrical, without heel, with row of short sole spines, 5 – 6 dorsal and distal setae longer than article diameter. Main claw slender, curved, with two auxiliary claws little more than half main claw length. Male and juvenile are unknown. Measurements of holotype in mm: Trunk length from chelifore insertion to tip of 4 th lateral processes, 4.61; trunk width across 2 nd lateral processes, 2.60; proboscis length, 4.63; abdomen length, 2.44; chelifore length, 0.60; chelifore width, 0.31. Lengths of palp articles 1 to 7 respectively: 0.35; 1.97; 0.43; 1.80; 0.32; 0.22; 0.34. Lengths of oviger articles 1 to 10 respectively: 0.32; 0.93; 0.49; 0.90; 0.86; 0.48; 0.50; 0.25; 0.32; 0.11. Third leg, coxa 1, 0.75; coxa 2, 1.72; coxa 3, 1.28; femur, 4.19; tibia 1, 4.23; tibia 2, 4.54; tarsus, 0.28; propodus, 2.16; claw, 0.65; auxiliary claw, 0.48. Measurements of first leg: coxa 1, 0.69; coxa 2, 1.57; coxa 3, 1.13; femur, 3.94; tibia 1, 4.05; tibia 2, 4.25; tarsus, 0.22; propodus, 1.91; claw, 0.61; auxiliary claw, 0.42.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
03E78793F525FFBBFF5EFC0BD1CF1DBF.taxon	etymology	Etymology. From the Latin gemma mons, meaning Precious Stone Mountain, referring to the new hydrothermal vent field.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
03E78793F525FFBBFF5EFC0BD1CF1DBF.taxon	discussion	Remarks. All the specimens of Sericosura gemmaemonsis sp. nov. collected are females, so we cannot confirm the position of the cement gland tube. However, they are consistent with the genus on other morphological features, such as having the trunk fully-segmented, with transverse ridges, the abdomen articulating, and the cephalon flaring anteriorly; the lateral processes are closely-spaced; the proboscis is large and ovoid; the ocular tubercle has a bifurcate tip; the palps have seven articles, and the ovigers ten articles of which the distal four articles have very small denticulate spines. Five of the species of Sericosura described previously have seven-articled palps, viz S. venticola, S. cyrtoma, S. hedgpethi Bamber, 2009, S. heteroscela Child & Segonzac, 1996 and S. mitrata (Gordon, 1944). S. gemmaemonsis is very similar to the female of the Atlantic species S. heteroscela, although with a much greater leg span. The femur and tibia 2 of S. gemmaemonsis are proportionately more slender and longer, and tibia 2 is the longest article of the leg. In the female of S. heteroscela, the legs are compact, and femur is the longest article. S. gemmaemonsis is also distinct in having two short setae on top of two separate lateral swellings dorsally on the third coxae. From Bamber (2009) this species would key out to S. cyrtoma, but that species has stouter thorn-like spines on the leg articles and a tapering proboscis, unlike the present species. There are some differences between the descriptions and the leg of the female (Fig. 1 E, G) with regard to two longer setae on the mid-dorsally raised of second coxa, as a result of damage to the specimen. There are some white flocculent material packing on the terminal article of palp (Fig. 1 D), and few attached on the setae. They are maybe filamentous bacteria. The specimens from station 21 - S 13 - TVG 9 were taken from the top of a hydrothermal vent, and the television monitor showed smoke issuing from the vent. We could infer from this Sericosura gemmaemonsis may live in the area close to the issuing hydrothermal fluid. Similarly, S. heteroscela were observed in situ one metre from a black smoker (Child & Segonzac, 1996). The type locality was an active hydrothermal vent.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
03E78793F527FFBDFF5EFBD4D73E19BC.taxon	materials_examined	Material examined: male holotype (TVG 0904), one female paratype (TVG 0903), DY 115 - 21 III Station 9, EPR, “ Precious Stone Mountain ” hydrothermal vent field, 1.22 ° N 101.49 ° W, 1628 m depth, TVG, 2 nd November 2009.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
03E78793F527FFBDFF5EFBD4D73E19BC.taxon	description	Description of the holotype (male): Leg span 27.6 mm. Trunk (Fig. 2 A, B) dorsal segmentation lines raised, swollen, without dorsomedian tubercles. Lateral processes separated by 0.5 – 1 times their diameters, with few distal short spines. Oviger bases massive, placed just anterior to first lateral processes. Neck with broad anterolateral expansion, elevated dorsally in lateral view. Ocular tubercle a anterior-leaning tube, blind, with bifurcate tip. Proboscis inflated, without constrictions, 0.7 times as long as trunk. Abdomen downcurved, extending to midpart of second coxae of fourth leg pair, with a pair of short dorsal spines and distal short setae. Chelifores short, scape one-articled, only about twice as long as wide, with distal spines. Chelae atrophied to knobs. Palps (Fig. 2 C) nine-articled. First article broad, without spines or setae. Second article longest, with one long dorsal seta and shorter lateral setae. Third article compact, about as long as first article, with long dorsal setae. Fourth article slightly shorter than first article, with more long setae. Distal five articles short, of decreasing diameters and length, with dense long ventral setae. Ovigers (Fig. 2 D) first to fifth articles with short setae, fifth article with a long dorsal seta. Sixth article ovoid, with dense long dorsal setae and short ventral spines. Seventh and eighth articles with long dorsal setae. Distal four articles with small denticulate spines in formula 2: 2: 1: 2. Right oviger bearing one egg ball. Third leg (Fig. 2 G to I) first coxa with ring of short distal setae. Second coxa longer than first or third coae, with two dorsal setae and cluster of few ventral distal setae. Third coxa distally swollen, densely setose. Femur with dorsal and ventral short setae, and with dense ring of longer distal setae. Cement gland (Fig. 4 I) dorsal at centre of femur, basally wide, attenuated. First tibia distally swollen, with dorsal, lateral and ventral setae, and one dorsal seta longer than article diameter. Second tibia slender, with dense dorsal, lateral and ventral long setae, and three dorsal setae longer than article diameter, and with 5 – 6 ventrodistal spines shorter than article diameter. Tarsus small, subtriangular, with one long dorsal seta, 1 – 2 short setae and 4 – 6 longer ventral spines. Propodus without marked heel, with dense sole spines of varied length, and short dorsal setae but with three longer than article diameter, and dense cluster of long dorsodistal setae. Auxiliary claws about 0.6 times as long as main claw. Measurements of holotype in mm: Trunk length from chelifore insertion to tip 4 th lateral processes, 3.26; trunk width across 2 nd lateral processes, 2.06; proboscis length, 2.18; egg-ball diameter, 1.32; abdomen length, 1.40; chelifore length, 0.53; chelifore width, 0.22. Lengths of palp articles 1 to 9 respectively: 0.14; 1.06; 0.16; 0.83; 0.15; 0.14; 0.13; 0.13; 0.07. Lengths of oviger articles 1 to 10 respectively: 0.40; 0.92; 0.44; 0.94; 0.88; 0.35; 0.12; 0.10; 0.15; 0.06. Third leg, coxa 1, 0.64; coxa 2, 1.13; coxa 3, 0.71; femur, 2.44; tibia 1, 2.67; tibia 2, 2.44; tarsus, 0.12; propodus, 1.05; main claw, 0.45; auxiliary claw, 0.35. Measurements of first leg: coxa 1, 0.40; coxa 2, 1.15; coxa 3, 0.55; femur, 2.29; tibia 1, 2.52; tibia 2, 2.31; tarsus, 0.09; propodus, 1.0; min claw, 0.39; auxiliary claw, 0.27. Distinctions of female (Fig. 3): size slightly larger than male, cement-gland and tube absent, sexuallydimorphic ovigers: ovigers of female almost without setae, and distal four articles with denticulate spines in formula 2: 2: 1: 4.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
03E78793F527FFBDFF5EFBD4D73E19BC.taxon	etymology	Etymology. From Latin dentatus, meaning toothed, referring to the species having more finely-denticulate spines on the oviger strigilis than in any other species.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
03E78793F527FFBDFF5EFBD4D73E19BC.taxon	discussion	Remarks. There are now five described species of Sericosura with nine-articled palps, including S. verenae (Child, 1987), S. cochleifovea, S. dissita and S. conta Bamber, 2009, as well as S. dentatus sp. nov .. The distinct difference between S. dentatus and these other species is the number of denticulate spines on the distal oviger articles. In addition, the proboscis of S. verenae is larger with submedian and subdistal constrictions, and the legs of the female have denser setae. Bamber (2009) has already discussed differences between S. conta and the other three nine-articled species of Sericosura, and those differences also apply to S. dentatus, including more- compact lateral processes, longer auxiliary claws and stouter chelifore scapes. S. dentatus is very similar to S. dissita and S. cochleifovea ignoring the differences in leg spans. Nevertheless, the location of the femoral cement-gland tube in the males is the significant difference between S. dentatus and S. cochleifovea. From Bamber (2009) this species would key out to Sericosura dissita (of which only the male is known), particularly as the mid-dorsal location of the femoral cement-gland tube in the males of S. dentatus is peculiar in the genus, but similar to that found in S. dissita. A mid-dorsal cement-gland tube is not typical of Sericosura, but the present species increases further the variability of this feature. S. dentatus is distinguished from S. dissita in having denser spination of all leg and oviger articles, no suggestion of secondary articulation of the fourth palp article and a more compact chelifore scape, as well as having denticulate spines on the seventh oviger article (naked in S. dissita). Sericosura dissita is known only from the type collection, from much further north on the Endeavour Segment of the Juan de Fuca Ridge. There are some differences between the descriptions and the figures of the male (Fig. 2) with regard to the cement gland on the right first leg and one auxiliary claw, as a result of damage to the specimen. The body-surface of the specimens is lightly covered with a yellow substance (possibly sulfides), and some white flocculent material is present between the appendages and the trunk (Fig. 2 A), also between the main claw and the auxiliary claws (Fig. 3 B), possibly filamentous bacteria. The sample site was very close to a hydrothermal vent with smoke issuing.	en	Wang, Jianjia, Lin, Rongcheng, Bamber, Roger N., Huang, Dingyong (2013): Two new species of Sericosura Fry & Hedgpeth, 1969 (Arthropoda: Pycnogonida: Ammotheidae) from a hydrothermal vent on the East Pacific Rise. Zootaxa 3669 (2): 165-171, DOI: 10.11646/zootaxa.3669.2.8
