Pseudocletodes Scott & Scott, 1893

Kihara, Terue Cristina & Huys, Rony, 2009, Contributions to the taxonomy of the Normanellidae (Copepoda, Harpacticoida): description of a new genus from the Brazilian continental shelf and re-assignment of Pseudocletodes vararensis Scott & Scott, 1893 (ex Nannopodidae), Zootaxa 2233, pp. 1-38 : 19-20

Genus Pseudocletodes Scott & Scott, 1893

Diagnosis. Normanellidae . Body elongate, subcylindrical, without clear distinction between prosome and urosome. Genital double-somite with internal transverse chitinous ribs laterally and dorsally. Anal somite with well developed rounded operculum. Genital field with median genital slit; vestigial P6 with 2 setae; copulatory pore large. Caudal rami lamelliform and elongate, with virtually straight outer margin and convex inner margin; with 7 setae; setae IV–V moderately developed, setiform.

Rostrum bell-shaped. Antennule 6-segmented in female, with large pinnate spines on segments 5 and 6, and an aesthetasc on segment 3; 7-segmented and subchirocer in male (after Scott and Scott (1893: Plate XII, Fig. 12 ), with geniculation between segments 5 and 6, and aesthetasc on segment 5; acrothek unconfirmed. Antennary allobasis with 2 abexopodal setae; exopod with 3–4 setae. Mandible with biramous palp; basis with 1 seta; exopod 1-segmented, defined at base, with 1 seta; endopod fused to basis, with 4 setae. Maxillule with 2 basal endites, proximal endite with 2 and distal endite with 3 setae; exopod with 2 setae; endopod represented by 2 setae. Maxillary syncoxa with 3 endites; accessory armature on allobasis consisting of 1 seta; endopod represented by 3 setae. Maxilliped prehensile; with unarmed syncoxa; palmar margin of basis without ornamentation; endopod drawn out into claw bearing 1 long seta.

P1 endopod absent. P4 exp-3 with 1 inner seta. P2–P4 enp-1 without inner seta. P2–P4 enp-2 with 2 inner setae; P2 enp-2 outer spine absent. P3 enp-2 inner and apical setae well developed in male but shorter than in female. P2–P4 spine and seta formulae as follows:

Male fifth pair of legs not fused medially, endopodal lobe with 3 setae; exopod with 4 setae. Male sixth pair of legs asymmetrical, with dextral and sinistral configurations, with 3 setae each. Single egg-sac. Type and only species: Pseudocletodes vararensis Scott & Scott, 1893 (fixed by monotypy in the subgenus Cletodes ( Pseudocletodes )).

Figures

FIGURE 12. Pseudocletodes vararensis Scott & Scott, 1893 (Ƥ): (A) habitus, dorsal; (B) habitus, lateral. Scale bar: 50 μm.