taxonID	type	description	language	source
03BE0217C445AA66ED971E1B3E95F864.taxon	materials_examined	Material examined. Holotype: Cross Seamount, Hawaii, “ Moana Wave ” cruise leg 13, dredge haul 2, 18 ° 47.52 ’ N 158 ° 13.73 ’ W, HURL, 12 / 16 / 1981, 2,013 m (USNM 1156950); Paratype: same location and date as holotype (1, BPBM R 3557).	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C445AA66ED971E1B3E95F864.taxon	description	Description. TUBE: Rugged white tubes with broad lateral flanges and ascending mouth in one specimen (Figs 1 A; 2 A), terminating with a thin flared lip. Four or five uneven longitudinal ridges present, not forming teeth, with narrow transverse ridges between them (Figs 1 B, C; 2 A). Tubes measured about 25 mm in length and 2 – 3 mm in width. One specimen removed from the tube measures 13 mm in length, excluding branchial crown. BRANCHIAE: Branchial crown with 12 – 13 radioles on either side; the second (modified) radiole on left or right side bearing the operculum. PEDUNCLE: Opercular peduncle flat and wrinkled (Figs 1 D, E; 2 B). OPERCULUM: Operculum composed of a funnel-shaped ampulla with chitinous concave opercular plate, brown to yellow in color (Figs 1 E; 2 B). COLLAR and thoracic membranes: collar trilobed; thoracic membrane extending to between chaetigers 6 and 7; apron absent. THORAX: with collar chaetiger and 6 uncinigerous chaetigers. Collar chaetae limbate and narrowly winged capillaries (Figs 1 F, G; 3 A); thoracic chaetae limbate (Fig. 1 H), more numerous than collar chaetae, capillaries (Fig. 1 I) and Apomatus chaetae with a small limbate zone from chaetiger 3 (Fig. 3 A shows basal part of Apomatus chaeta in Fig. 1 J and Fig. 3 B showing distal part of same Apomatus chaeta). Thoracic uncini saw-shaped with up to 11 teeth including rounded anterior fang (Figs 1 K; 3 C). ABDOMEN: composed of about 80 chaetigers, with two kinds of chaetae and uncini. Abdominal chaetae with flat narrow geniculate blade (Fig. 1 L), 2 per fascicle, except for posterior-most chaetigers with long capillaries (Fig. 1 M; 3 D, E). Abdominal uncini saw-shaped in most chaetigers with 8 or 9 teeth including a simple anterior tooth (Fig. 1 N) and rasp-shaped in posterior-most chaetigers (Fig. 1 O) with about 15 rows of teeth, 4 – 6 teeth per row and a rounded anterior fang. Glandular pad present on last abdominal segments and composed by several rounded structures with calcium carbonate crystals protruding from a shallow pit (Fig. 3 F).	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C445AA66ED971E1B3E95F864.taxon	discussion	Remarks. The two specimens agree with the generic characters given by Zibrowius (1971), Nishi et al. (2007) and ten Hove & Kupriyanova (2009), where a flat and ribbon-like opercular stalk is present. The new species resembles Metavermilia annobonensis (Augener, 1914) in most cases (e. g. tubes with 4 – 5 irregular longitudinal ridges and operculum with a concave distal plate), but differs in the number of teeth in the thoracic uncini, 7 according to Zibrowius (1971), 11 (but see Fig. 3 C) in the Hawaiian specimens; thoracic membrane extends to thoracic chaetigers 3 – 4 according to Zibrowius (1971) and Nishi et al. (2007) for M. annobonensis, but thoracic membrane extends to between chaetigers 6 and 7 in the Hawaiian material.	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C445AA66ED971E1B3E95F864.taxon	etymology	Etymology. The species is named for Dr. Helmut Zibrowius who kindly examined my notes and illustrations (JB-B) of these Hawaiian specimens and offered advice on their diagnosis.	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C445AA66ED971E1B3E95F864.taxon	distribution	Distribution. Cross Seamount in the Hawaiian Chain, 2,013 m.	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C441AA60ED9718063F04F8C0.taxon	materials_examined	Material examined. Cross Seamount, Hawaii, “ Moana Wave ” cruise leg 13, dredge haul 2, 18 ° 47.52 ’ N 158 ° 13.73 ’ W, HURL, 12 / 16 / 1981, 2,013 m (1, USNM 1156951; 1, BPBM R 3558).	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C441AA60ED9718063F04F8C0.taxon	description	Description. TUBE: Tubes white, opaque, length 10 – 20 mm, width 2 – 3 mm; oldest part triangular in crosssection, with delicate flaring mouth, becoming round in section towards the mouth (Figs. 2 C, 4 A – C). Median keel of fine denticulate spines present (Figs. 2 C, 4 A, B) and projecting over the mouth; 2 – 3 rows of lateral spines, most numerous towards the mouth. Flared rims of earlier tube mouths evident as transverse raised flanges (Fig. 4 C). BRANCHIAE: Branchial crown with 10 – 12 radioles on either side, the second on the left side with operculum in both specimens. PEDUNCLE: Opercular peduncle arises as the second filament on the left side and lies across the first and third normal radioles; oval and slightly flattened in cross-section. OPERCULUM: Operculum with vesicular ampulla and a lightly calcified flat plate with slightly upturned rim and a convex center (Figs. 2 D, 4 D, E). Two small swellings (not wings) present where the ampulla joins the opercular stalk (Figs. 4 D, E), the distal latero-dorsal “ winglets ” sensu ten Hove & Kupriyanova (2009: 22). COLLAR and thoracic membranes: Collar trilobed. Thoracic membrane best developed anteriorly extending beyond last thoracic chaetiger; apron absent. Tonguelets not observed. THORAX: Seven thoracic chaetigers, six uncinigerous. Uncinigerous rows of second chaetiger shorter and more widely spaced than subsequent chaetigers. Collar chaetae slender finely denticulate bayonet-like (Figs. 4 F; 5 A, B) and narrowly limbate capillaries with long blades (Fig. 4 G). Chaetae of chaetigers 2 – 7 with simple blade. Apomatus chaetae observed from chaetiger 3 (Fig. 4 H). Thoracic uncini saw-shaped with simple rounded anterior fang and 8 – 9 teeth (Figs. 4 I, J; 5 C). Uncini with 8 and 9 teeth in the same uncinigerous torus. ABDOMEN: Abdominal chaetae of 2 types, anterior chaetigers with narrow flat geniculate chaetae (Figs. 4 K; 5 D) and posterior chaetigers with a few geniculate chaetae and long tapered capillaries with denticulate tip (Figs. 4 L; 5 E). Abdominal uncini rasp-shaped, smaller than thoracic ones, with 8 – 9 rows of teeth and a rounded anterior fang (Figs. 4 M; 5 F).	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C441AA60ED9718063F04F8C0.taxon	discussion	Remarks. One specimen with a large round, multilocular foraminiferan lodged in the intestine. Specimens fit well the generic description and illustrations by ten Hove & Kupriyanova (2009). These specimens appear to be a new and deeper record for Omphalopomopsis langerhansii, which is known from a single specimen collected from Enoshima in South Japan at 366 m (ten Hove and Kupriyanova, 2009).	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
03BE0217C441AA60ED9718063F04F8C0.taxon	distribution	Distribution. Enoshima, South Japan and newly recorded to Cross Seamount in the Hawaiian Chain; 2,013 m attached to small pieces of rock.	en	Bailey-Brock, Julie H., Magalhães, Wagner F. (2012): A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain. Zootaxa 3192: 49-58, DOI: 10.5281/zenodo.213927
