taxonID	type	description	language	source
260187F7FFB8FFD0FF1DFF466235FC5C.taxon	materials_examined	Type species: D. octocornis Drzycimski, 1967. Additional species: D. triarticulatus Coull, 1973, D. ursulae George, 2006, D. wilhelminae sp. nov., D. dinah sp. nov. (both described here). Generic diagnosis. Ancorabolinae Sars, 1909, Ceratonotus - group sensu Conroy-Dalton (2001). Body long, slender. Cphth frontally with peak, lacking lateral processes. Rostrum constricted, fused to cphth, square or rectangular in shape, with terminal pair of sensilla and single tubepore. Cphth and free thoracic somites with dorsal pair of spinulose cuticular processes at their distal margins, which bear single sensilla at their bases and tips. Thoracic somites bearing P 2 – P 5 with dorsal single tubepores. Last thoracic somite and abdominal somites also with dorsal tubepores in differing numbers. Genital double somite present in female, with dorsal suture indicating former separation. Telson broader than long, trapezoid in shape. Anal operculum with row of spinules. FR of different length, with 7 setae, with terminal tubepore, furcal seta I minute. Female A 1 4 - segmented, male A 1 5 – 6 - segmented. A 2 with allobasis bearing 2 abexopodal setae. Md with variable gnathobase and 1 - segmented palpus bearing 4 – 5 setae. Mxl with coxa and basis distinct or fused. Mx with 2 endites, each with 2 – 3 setae, syncoxa and basis distinct or fused. Mxp prehensile, syncoxa with 1 terminal seta, enp formed into a long claw with associated minute seta. Swimming legs 1 – 4 with transversely elongate bases and with exp and enp. P 1 exp 2 – 3 - segmented, in case of 2 - segmented exp first outer spine of terminal segment may be translocated subterminally. Terminal segment with 4 – 5 geniculate setae. P 1 enp not prehensile, 2 - segmented, enp 2 terminally with 1 – 2 setae. P 2 – P 4 with 3 - segmented exps and 2 - segmented enps, enp 1 much shorter than enp 2. P 5 enp completely reduced and represented by 1 – 2 setae that are accompanied by 1 – 2 tubepores. Outer basal seta arise from small setophore and are associated with a long tubepore. Exp distinct or fused to benp, with 5 setae, 1 long tubepore may be present subterminally.	en	George, Kai Horst, Plum, Christoph (2009): Description of two new species of Dorsiceratus Drzycimski, 1967 (Copepoda: Harpacticoida: Ancorabolidae) from Sedlo and Seine Seamounts (Northeastern Atlantic) and remarks on the phylogenetic status of the genus *. Zootaxa 2096 (1): 257-286, DOI: 10.11646/zootaxa.2096.1.15, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2096.1.15
260187F7FFB8FFD7FF1DFB50665CFF48.taxon	materials_examined	Holotype: 1 female, dissected and mounted on 17 slides, deposited at the Forschungsinstitut und Naturmuseum Senckenberg (Frankfurt, Germany), collection numbers SMF 31442 / 1 – 17. Type locality: Atlantic Ocean, Sedlo Seamount, station # 728 (27.11.2003, Giant Boxcorer, 40 ° 18,5 ’ N / 26 ° 42,0 ’ W, 856 m depth). Etymology. The specific name of Dorsiceratus wilhelminae sp. nov. is given in grateful rememberance to the grandmother of CP, Mrs. Anna Wilhelmina Plum. Description of female. Habitus (Fig. 1) long and slender (body length including FR 395 µm). Cphth bearing a pair of cuticular processes with small apical sensilla and small spinules, each of which are accompanied by another sensillum at their bases. Cphth anteriorly drawn into a peak with 2 tubepores. Rostrum (Fig. 3 B) constricted, fused to cphth, strongly prominent, about 2 times longer than broad, divided distally, with 2 sensilla and 1 long tubepore at its tip. Cphth with several sensilla, with anterolateral setular tufts. Body somites also with lateral setular tufts. Thoracic body somites bearing P 2 – P 4 each with 1 pair of dorsal cuticular spiny processes bearing sensilla at their tips and bases. Each thoracic body somite with 1 dorsal, long tubepore. First abdominal somite ventrally fused with last thoracic body somite to form the genital double somite. First and second abdominal somite ventrally and dorsally with 2 tubepores, each with a sensillum; dorsal tubepores flanked by a row of dorsal spinules (Fig. 1 and 2 A). Third abdominal somite with 1 dorsal tubepore. Abdominal somites (except telson) with posterior dorsal and ventral row of long hair-like spinules. In addition the third abdominal somite with dorsal and ventral strong and long spinules. Telson broader than long, without dorsal tubepore, but with 2 tubepores near the FR´s base (Fig. 2 A). Anal operculum with spinules. FR (Fig. 2 B) slender, about 4 times longer than broad, bearing 7 setae and terminally ending in 1 short but broad, and 1 slender tubepore. Setae I and II inserting laterally, close together. Seta I very fine, small and bare. Seta II bipinnate, longer than I. Seta III (broken) inserting subterminally at outer margin, accompanied by a few spinules basally. Seta IV and V (both broken) inserting terminally. Seta VI bare, inserting terminally at inner margin and flanked by a few spinules. Seta VII arising dorsally from small knob. A 1 (Fig. 3 A, B) 4 - segmented. First segment (Fig. 3 B) longest, second and third segment almost the same size, fourth segment smaller. First and second segments with a row of long spinules. First segment with 1 small, distal, bipinnate seta (Fig. 3 B). Second segment with 7 setae. Third segment with 6 bare setae on its outer side, with strong subterminal aes, accompanied by a 7 th seta. Fourth segment with 10 bare setae, one of which fused with 1 small aes. Armature formula: I – 1; II – 6; III – 7 + aes, IV – 10 + aes. A 2 (Fig. 4 A) lacking exp. Allobasis with row of spinules and 2 abexopodal setae. Enp with lateral (several) long spinules, 2 well-developed bipinnate setae, and 1 small bare seta. Terminal end of A 2 with 3 long, geniculate setae, one of which fused with small bare seta. In addition there are 2 unipinnate smaller setae. Subterminally with frill carrying spinules. Md damaged, not illustrated. Mxl (Fig. 4 C) arthrite of praecoxa with 6 terminal spines and 1 bare seta. On surface with row of long spinules and 2 bare setae. 2 subapical bare and slender setae. Coxal endite with 1 bare and 1 unipinnate blunt seta. Basis, enp, and exp fused, forming a single lobe with 6 bare and 1 pinnate setae. Mx (Fig. 4 D) syncoxa and basis separate, syncoxa with 2 endites and several spinules. Proximal endite small, with 1 strong unipinnate seta, fused with the segment, and 1 smaller bare seta. Distal endite with 2 strong unipinnate setae. Basis with 1 unipinnate and 1 bare strong seta, both fused with segment. First seta drawn out into long claw-like spine. In addition it has 2 bare and slender setae. Enp fused with basis, represented by 2 bare setae. Mxp (Fig. 4 B) prehensile, syncoxa with row of short, but strong spinules and 1 unipinnate seta. Basis with row of long spinules. Enp drawn out into long bare claw, with 1 small seta at its base. P 1 (Fig. 5) with transversely elongate basis, bearing 1 bare inner and 1 bipinnate outer seta, and 1 row of long spinules on the dorsal margin. Enp broken. Exp 2 - segmented, with exp 2 much longer than exp 1. Exp 1 with 1 outer bipinnate seta; exp 2 with row of long spinules along the inner margin, and with 1 outer unipinnate seta; with 4 terminal, bare, geniculate setae, the innermost translocated subterminally. Finally there is also a tubepore. P 2 – P 4 (Figs. 6 – 8) with transversely elongate bases, each carrying 1 bipinnate seta on the outer distal margin, a long tubepore and several long spinules on the dorsal margin. Enps broken. Exps 3 - segmented, P 2 exp 1 and exp 2 with row of long spinules along inner margin, exp 3 with long subterminal tubepore. Outer setae of P 2 exp 1 and exp 2, as well as terminal setae of exp 3 slightly malformed. Exp 3 of P 2 also deformed at its inner margin, beneath the insertion of the inner seta. P 3 exp 2 with long spinules along inner margin. Setation of P 2 – P 4 as listed in table 1. P 5 (Fig. 9) benp and exp separate. Benp with long anterior spinules. Endopodal lobe completely reduced, represented by 1 bare and 1 bipinnate seta that is accompanied by 2 long tubepores. Outer seta of benp arising from small setophore, accompanied by spinules and long tubepore. Exp with 1 bipinnate outer seta, with 1 subterminal small bipinnate seta; with terminal triplumose (1) and bipinnate (1) setae, and with 1 bipinnate inner seta, accompanied by long tubepore and bearing 1 small tubepore at its tip. GF (Fig. 2 A) gonopores and copulatory pore free, not covered by P 6, which are fused and form a cuticular fold, with 2 small setae. Male unknown.	en	George, Kai Horst, Plum, Christoph (2009): Description of two new species of Dorsiceratus Drzycimski, 1967 (Copepoda: Harpacticoida: Ancorabolidae) from Sedlo and Seine Seamounts (Northeastern Atlantic) and remarks on the phylogenetic status of the genus *. Zootaxa 2096 (1): 257-286, DOI: 10.11646/zootaxa.2096.1.15, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2096.1.15
260187F7FFB7FFC5FF1DFF46666CF908.taxon	materials_examined	Holotype: 1 female, dissected and mounted on 15 slides, deposited at the Forschungsinstitut und Naturmuseum Senckenberg (Frankfurt, Germany), collection numbers SMF 31443 / 1 – 15. Type locality: Atlantic Ocean, Seine Seamount, Station # 756, (04.12.2003, MUC, 33 ° 46,0 ’ N / 14 ° 21,9 ’ W, 179 m depth). Etymology. The specific name of Dorsiceratus dinah sp. nov. is fondly dedicated to KHG’s twin sister, Mrs. Dinah George. Description of female. Habitus (Fig. 10) long and slender (body length including FR 380 µm). Cphth with pronounced frontal peak and dorsally with 1 pair of long spinulose cuticular processes at its distal margin, bearing small sensilla at their tips and bases. Peak with 2 tubepores near the A 1 base, and with 3 pairs of sensilla; with lateral setular tufts and 1 sensillum at each side. Rostrum (Fig. 12 B) constricted, fused to cphth, remarkably prominent and divided distally, with 2 sensilla and 1 long tubepore at its tip. Cphth with several sensilla. Thoracic somites bearing P 2 – P 4 each with a pair of long cuticular spiny processes at their dorsal distal margin, with sensilla at their tips and bases; with lateral setular tufts. Thoracic somites bearing P 2 – P 5 dorsally with 1 long dorsal tubepore. Last thoracic, P 6 - bearing somite incompletely fused with first abdominal somite, forming a genital double somite, whose former separation is indicated by a dorsal cuticular suture; ventrally and laterally with 2 tubepores and 2 sensilla (Fig. 11 A). Genital double somite with 2 pairs of dorsal tubepores, second abdominal somite with 1 pair of dorsal tubepores. All abdominal somites with 2 lateral tubepores, genital double somite and second abdominal somite with additional tubepores at their ventral side. P 5 - bearing somite, genital double somite, and all abdominal somites each with dorsal row of long hair-like spinules at their distal margins. Third abdominal somite also with ventrally hair-like spinules and row of well-developed long spinules. All abdominal somites with dorsal pair of tubepores at distal margin. Telson without dorsal tubepore, but with 2 tubepores near the FR base (Fig. 11 A). Telson broader than long, trapezoid in shape; its distal margin broader than its proximal one. Anal operculum with spinules. FR (Fig. 11) about 5 times longer than broad, bearing 2 terminal tubepores and 7 setae (I – VII). I and II insert laterally, close together. I very fine, small and bare. II unipinnate, longer than I. III bipinnate, inserts subterminally at outer margin, accompanied by a few spinules at its base. Setae IV, V, and VI insert terminally, IV and VI small and bare, V bipinnate and longest of all setae. Seta VI inserts terminally at inner margin, flanked by a few spinules. VII at dorsal side arises from small knob. A 1 (Fig. 12 A, B) four-segmented. First segment longest, second and third segment almost the same size, and fourth segment smallest. First and second segment with lateral row of long spinules. First segment with 1 distal seta at inner margin. Second segment with 6 setae on its outer margin and 1 seta on anterior surface. Third segment with 6 bare setae on its outer side, with strong subterminal aes, accompanied by a 7 th seta. Fourth segment with 11 bare setae and 1 small aes. Armature formula: I – 1; II – 7; III – 7 + aes; IV – 11 + aes. A 2 (Fig. 13 A) lacks exp. Allobasis with row of spinules and 2 abexopodal setae. Enp 1 - segmented, with several long lateral spinules, 2 well-developed bipinnate setae and 1 small bare seta. There are 5 terminal setae, 3 of which geniculate. One geniculate seta bipinnate and basally fused with additional 6 th small bare seta. There are also subterminal frill carrying spinules. Md (Fig. 13 B, C) Gnathobase elongate with 3 teeth, lacking seta at inner margin. Basis, enp, and exp fused, forming a long mandibular palp with 3 bipinnate and 2 unipinnate setae, with several additional spinules. Mxl (Fig. 13 D) Arthrite of praecoxa with 6 terminal spines, subapically with 2 bare, slender setae. Surface with 2 bare setae. Coxa, basis, enp, and exp fused, forming a single lobe that bears 9 setae. Mx (Fig. 13 E) Syncoxa and basis separate, carrying the syncoxa 2 endites. Proximal endite small, with 1 bipinnate and 1 bare seta, both well developed and equal in size. Distal endite with 1 unipinnate and 1 bare seta. Basis with 1 claw-like unipinnate seta and 1 smaller bare seta, both fused with the segment. There are 2 additional bare and slender setae. Enp distinct but very small, with 2 bare setae. Mxp (Fig. 14 B) prehensile, syncoxa with a row of long lateral spinules, with subterminal row of strong spinules and 1 bipinnate seta. Basis with a transverse row of long spinules. Enp drawn out into a long bare claw, accompanied by 1 small seta at its base. P 1 (Fig. 14 A) with transversely elongate basis, bearing 1 bare inner and 1 outer seta (broken in Fig. 14 A), and 1 row of long spinules on the dorsal margin. With 1 additional tubepore. Enp 2 - segmented, second segment with row of long spinules at outer margin and 2 bare terminal setae. Exp 2 - segmented, with exp 2 longer than exp 1. Exp 1 with a row of long spinules along the outer margin and 1 outer bipinnate seta; exp 2 with 1 outer geniculate bare seta, with 3 terminal bare, geniculate setae and with 1 subterminal long, bare seta. Also with 1 subterminal tubepore. P 2 – P 4 (Figs. 15 – 17) with transversely elongate bases, carrying 1 bipinnate seta on the outer distal margin, a long tubepore and several long spinules on the dorsal margin. Enps 2 - segmented, first segment bare and much shorter then second; second segment with 1 bipinnate seta in P 2 and 2 setae in P 3 and P 4 (1 seta broken in Fig. 17). Enp 2 with additional row of spinules at inner (P 2, P 3), and outer margin (P 3), while bare in P 4. Exps 3 - segmented, with row of long spinules along the inner and outer margin of exp 1 and exp 2. Exp 1 and exp 2 equal in length, but exp 3 longer than exp 2. Exp 3 of P 2 and P 3 with 1 subterminal long tubepore. Setation of P 2 – P 4 as listed in table 2. P 5 (Fig. 18) Benp and exp fused. Anterior part of baseoendopod with long spinules and 1 bare seta in the middle, representing the enp, accompanied by 1 long tubepore. Outer basal seta arises from a small setophore, accompanied by 1 long tubepore. Exp with 2 multipinnate outer setae (1 seta broken), 1 tripinnate subterminal and 1 tripinnate terminal seta, and 1 bipinnate inner seta. There is also 1 long tubepore. GF (Fig. 11 A) copulatory pore free, not covered by fused unisetose P 6, which form a cuticular fold. Male unknown.	en	George, Kai Horst, Plum, Christoph (2009): Description of two new species of Dorsiceratus Drzycimski, 1967 (Copepoda: Harpacticoida: Ancorabolidae) from Sedlo and Seine Seamounts (Northeastern Atlantic) and remarks on the phylogenetic status of the genus *. Zootaxa 2096 (1): 257-286, DOI: 10.11646/zootaxa.2096.1.15, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2096.1.15
