Procampylaspis capraruae, Petrescu, 2018

Petrescu, Iorgu, 2018, On the Family Nannastacidae (Crustacea, Cumacea) from the Australian Museum Collection, Records of the Australian Museum 70 (1), pp. 1-111 : 38-39

Procampylaspis capraruae sp. nov.

Fig. 43

Holotype ♀, 4.3 mm, P.90714, Australia, NSW, east of Long Reef Point , -33.77° 151.72°, 176 m, dredge, 5 Dec 1977, FRV Kapala , K77-23-01, in AM . Paratypes: 1 subadult ♂, P.90715; 1♀, P.90716.

Etymology. The species is named in honour of Dr Claudia Căpraru, medicine specialist in internal medicine, for her generous help in the recovery of my circulatory disorders.

Diagnosis. Carapace 0.4 of entire body length, 4 pairs of middorsal tubercles, other 2 pairs between tip of small ocular lobe and tip of pseudorostrum, granular integument, pereonites 3–5 with 1 dorsal tubercle and 1 lateral pair, pleonites 1–4 with 1 dorsal tubercle, 5th with 1 pair, first 5 pleonites with 1 lateral tubercle; maxilliped 2 dactylus with 1 st and 2nd tooth enlarged, 3rd 0.5 previous teeth length, 4th tooth little slender than first two teeth, short distal tooth, short and curved distal extremity; pereopod 1 carpus as long as propodus, longer than merus, 2 dactylus length; pereopod 2 carpus little longer than merus, dactylus 2.4 as long as propodus; uropodal peduncle 1.6 pleonite 6 length, 1.8 endopod length; endopod 1.25 exopod length, with 3 setae medially.

Description. Carapace 0.4 body length, 2.5 as long as high; 4 pairs of mid-dorsal tubercles, other 2 pairs between tip of ocular lobe and tip of pseudorostrum; pseudorostrum 0.22 carapace length; granular integument; serrate anterolateral margin; small antennal notch ( Fig. 43 A, B ). — Pereonites 3–5 with 1 dorsal and 1 lateral tubercle. Pleonites 1–4 also with dorsal tubercle, 5th pleonite with 1 pair, pleonites 1–5 with 1 lateral tubercle. — Maxilliped 2 basis, ischium and merus with medial pappose setae; merus 3 ischium length, as long as carpus, serrate margins; carpus 1.1 merus length; propodus, 1.3 carpus length, with 1 simple and 2 pappose setae; dactylus with 1 st and 2nd tooth enlarged, 3rd tooth 0.5 length of previous teeth, 4th tooth little slender than first two, short distal tooth, short and curved distal extremity ( Fig. 43 C ). — Maxilliped 3 basis as long as rest of article’s length, serrate medially, with 3 plumose setae; merus 4 ischium length, with 1 robust tooth and 2 plumose setae; carpus 0.75 merus length, with 2 teeth and 3 plumose setae; propodus 1.3 carpus length, with 1 plumose and 3 pappose setae; dactylus 0.4 propodus length, with 4 simple setae; with exopod ( Fig. 43 D ). — Pereopod 1 basis 0.7 rest of article’s length, with 2 plumose setae; ischium with 1 plumose seta; merus 1.3 ischium length, with 1 simple and 1 plumose seta; carpus as long as propodus, with 2 simple setae; propodus 2.5 dactylus length, with 2 simple setae; dactylus 0.5 propodus length, with 6 simple setae; with exopod ( Fig. 43 E ). — Pereopod 2 basis 0.7 rest of article’s length, with 1 plumose seta; merus 3 ischium length, with 1 plumose seta; carpus 1.1 merus length, with 1 simple and 2 plumose setae; dactylus 2.4 propodus length, with 8 simple setae; with exopod ( Fig. 43 F ). — Pereopods 3–5 with decreasing basis and increasing carpus; dactylus fused with terminal seta ( Fig. 43 G–J ). — Uropod peduncle 1.6 pleonite 6 length, 1.8 endopod length, serrate margins; endopod 1.25 exopod length, with 3 setae, both medially, rami with serrate margins and broken terminal seta ( Fig. 43 K ).

Remarks. Procampylaspsis capraruae sp. nov. is closely related to P. corberai sp. nov., both having more than three distal tubercles on carapace. It differs in: carapace with four pairs of tubercles instead of six (also on the pseudorostrum), maxilliped 2 with a shorter dactylus, maxilliped 3 with slender articles, pereopod 1 with the propodus as long as the carpus (longer in P. corberai ), and in the shorter and thicker uropod.

Distribution. Australia: NSW—east of Long Reef Point, at 176 m; and east of Newcastle, at 165 m depth.

Figures

Figure 43. Procampylaspis capraruae sp. nov. Holotype female (A) body, lateral view; (B) body, dorsal view; (C) maxilliped 2; (D) maxilliped 3; (E) pereopod 1; (F) pereopod 2; (G) pereopod 3; (H) pereopod 4; (I) pereopod 5; (J) uropod. Scales: A 1 mm; B 1 mm; C 0.2 mm; D–J 0.3 mm.