Kliopsyllus schminkei, Veit-Kohler & Drewes, 2009

Veit-Köhler, Gritta & Drewes, Jan, 2009, Kliopsyllus schminkei sp. n. (Copepoda, Harpacticoida, Paramesochridae) - a new copepod from the southeast Atlantic deep sea (Angola Basin) *, Zootaxa 2096 (1), pp. 313-326 : 314-320

publication ID	https://doi.org/10.11646/zootaxa.2096.1.18
DOI	https://doi.org/10.5281/zenodo.17938281
persistent identifier	https://treatment.plazi.org/id/03A36177-FFF6-FF80-FF05-9507FEB8F817
treatment provided by	Felipe
scientific name	Kliopsyllus schminkei
status	sp. nov.

Treatment

Kliopsyllus schminkei sp. n.

Type material: The examined specimens are registered and deposited in the collection of the Senckenberg Forschungsinstitut und Naturmuseum Frankfurt, Germany. All specimens of the type material were collected on 07 -27- 2000 at a depth of 5389 m. Station numbers indicate “station/multicorer deployment number - core number”.

Female holotype: SMF 31436 (13 slides), DIVA-1 station 346/2-7 ( 16°17.0’S, 05°27.0’E) GoogleMaps .

Male allotype: SMF 31437 (6 slides), DIVA-1 station 346/2-10 ( 16°17.0’S, 05°27.0’E) GoogleMaps .

Female paratype 1: SMF 31438 (10 slides), DIVA-1 station 346/5-7 ( 16°16.9’S, 05°27.0’E) GoogleMaps .

Female paratype 2: SMF 31439 (1 slide), DIVA-1 station 346/2-3 ( 16°17.0’S, 05°27.0’E) GoogleMaps .

Male paratype 1: SMF 31440 (1 slide), DIVA-1 station 346/1-5 ( 16°17.0’S, 05°27.0’E) GoogleMaps .

Male paratype 2: SMF 31441 (1 slide), DIVA-1 station 346/1-4 ( 16°17.0’S, 05°27.0’E) GoogleMaps .

Etymology: The species is dedicated to Prof. Dr. Horst Kurt Schminke, our mentor and teacher at the University of Oldenburg, Germany. Among many other merits he promoted the founding of the German Centre for Marine Biodiversity Research (DZMB), a young and successful department of the Senckenberg Research Institute.

Description of female: Total body length measured from anterior tip of rostrum to posterior margin of telson: Holotype 0.23 mm (values of 6 additional females measured: mean 0.22 mm, min. 0.21, max. 0.23 mm); including the caudal rami: Holotype 0.30 mm (values of 6 additional females measured: mean 0.29 mm, min. 0.27, max. 0.31 mm).

Body cylindrical ( Figs. 1A, B View FIGURE 1 ), slightly depressed dorsoventrally; prosome slightly wider than urosome; with few pores and sensilla distributed dorsally and laterally on cephalothorax, the three free pedigerous somites of the prosome, the somite bearing P5 and the genital double-somite; first free abdominal somite with sensilla, only. Somitic hyaline frills slightly developed. Posterior margin of urosomites with ventrolateral minute spinules ( Figs. 1B View FIGURE 1 , 2A View FIGURE 2 ). Penultimate somite with a fine pseudoperculum. Telson with ventrolateral spinules ( Figs. 1B View FIGURE 1 , 2A View FIGURE 2 ).

Furcal rami of adult female ( Fig. 3 View FIGURE 3 ) cylindrical, ten times as long as wide, with 6 setae and a minute ventrolateral outer pore: Seta I absent; seta II slender, dorsally displaced; seta III short and slender, situated dorsolaterally, near posterior margin; seta IV long and slender, seta V slender, longer than IV, both situated distally; seta VI small; seta VII slender and naked.

Rostrum ( Fig. 1B View FIGURE 1 ) small, hyaline, fused to cephalothorax.

Antennule ( Figs. 4A, B View FIGURE 4 ) eight-segmented, segment I with long spinules along inner margin. Armature formula: I (0), II (9), III (4), IV(2+(1+aes), V (2), VI (2), VII (3), VIII (4+(1+aes); 20 setae slender and unarmed, one plumose, 5 setae on elevations, two setae fused at base with aesthetasc.

Antenna ( Fig. 4C View FIGURE 4 ). Basis without armature. Endopod two-segmented; enp1 with one inner seta; enp2 armed with several spinule rows; three subapical setae and six apical pinnate setae, three of which geniculate. Exp one-segmented, with four setae with transversally cut tips and one slender lateral seta.

Labrum ( Fig. 5A View FIGURE 5 ) broad and naked as depicted.

Mandible ( Figs. 5B–D View FIGURE 5 ). Coxa with slender and elongated gnathobasis ( Figs. 5B, C View FIGURE 5 ); cutting edge with one large and five smaller teeth. Basis with one seta ( Fig. 5C View FIGURE 5 ). Enp two-segmented; first segment with two slender setae, second segment with five slender and naked apical setae. Exp small, one-segmented, with two slender setae ( Fig. 5C View FIGURE 5 ).

Maxillule ( Fig. 5E View FIGURE 5 ). Praecoxal arthrite with two juxtaposed slender setae. Inner margin of arthrite with six strong spines, and one seta. Coxal endite with three setal elements, one of which is strong and serrate. Endite of basis with six slender, naked setae. Enp one-segmented, with five slender setae. Exp small, one-segmented, with two naked setae.

Maxilla ( Fig. 5F View FIGURE 5 ). Syncoxa with three endites; proximal endite slightly bilobed, with one setal element on proximal lobe and two setal elements on distal lobe; middle endite with two elements, distal endite with three elements. Basis fused to syncoxa with three strong setal elements of different sizes. Enp two-segmented with one naked seta on first segment and four bare setae on second.

Maxilliped ( Fig. 5G View FIGURE 5 ). Syncoxa with a spinule row and one bare seta. Basis without armature. Enp onesegmented with two long and two small setae.

Swimming legs ( Figs. 6A–D View FIGURE 6 , Tab. 1 View TABLE 1 ) with highly reduced rami. Outer spines on exps without ornamentation.

P1 ( Fig. 6A View FIGURE 6 ). Basis with some spinules along inner margin and one inner naked seta. Enp one and a half times as long as exp, both two-segmented and ornamented on outer rim with spinules, those in enp1 longer than in exp. Enp1 without armature, enp2 with one long and one short seta. Exp1 with one outer spine. Exp2 with two outer spines, one apical spine and one apical seta.

P2–P4 ( Figs. 6B–D View FIGURE 6 ). Basis of P2–P4 bearing one outer seta. No setules visible. Three-segmented exopods slightly longer than endopods with spinules along outer margin. Enps with long setules along outer margin and a row of shorter setules reaching from the posterior side to the apical part of enp.

P2 and P3 ( Figs. 6B, C View FIGURE 6 ). Exp1 and exp2 of P2 and P3 with one stout outer spine. Exp3 with two outer spines of different sizes, one apical spine with several setules on inner side and one apical seta with setules on inner side. Enp with one apical seta with setules on inner side.

P4 ( Fig. 6D View FIGURE 6 ). Exp1 and exp2 armed with one stout outer spine. Exp3 with one outer spine and one outer terminal spine with inner setules. Enp P4 with strong terminal spine.

P5 ( Fig. 2A View FIGURE 2 ). Legs fused, small exopod clearly separated from baseoendopod. Benp with outer basal seta and an anterior pore. Endopodal lobe with several spinules and with one large inner and one smaller outer stout pinnate seta. Exp with two inner small elements and one outer long and bipinnate seta; ornamented with inner spinule row.