Cyclaspis gurui, Petrescu, Iorgu, Chatterjee, Tapas & Schizas, Nikolaos V., 2014

Petrescu, Iorgu, Chatterjee, Tapas & Schizas, Nikolaos V., 2014, New records of Bodotriidae (Crustacea: Cumacea) from Puerto Rico with descriptions of three new species, Zootaxa 3873 (5), pp. 526-540 : 527-530

publication ID	https://doi.org/ 10.11646/zootaxa.3873.5.4
publication LSID	lsid:zoobank.org:pub:09072508-9A7C-401E-BD12-81A0721D4CDC
DOI	https://doi.org/10.5281/zenodo.6122965
persistent identifier	https://treatment.plazi.org/id/61770878-BB5F-FFA7-C2E9-FAC522D93FC8
treatment provided by	Plazi
scientific name	Cyclaspis gurui
status	sp. nov.

Treatment

Cyclaspis gurui sp. nov.

( Figs. 1 View FIGURE 1 , 2 View FIGURE 2 )

Material examined. Holotype, ♂, MGAB CUM 1691. Type locality: San Cristobal Cay, Puerto Rico, 17°56'32.95"N, 67°4'42.09"W, 9.06.2012, night plankton net tow at surface, location of the sample at 4.5 m depth, collector Nikolaos V. Schizas.

Diagnosis. Carapace with dark spots on anterior half, uropodal peduncle 1.15 times pleonite 6 length, endopod with 11 setae.

Description. Adult male

Body ( Fig. 1 View FIGURE 1 A). Body size: 2.75 mm. Smooth tegument.

Carapace ( Fig. 1 View FIGURE 1 A, B). It is 0.27 times the entire body length, numerous dark spots on anterior half, 1.90 times longer than high, prominent anteroventral corner, frontal lobe 0.38 times as long as carapace, ocular lobe, half of frontal one, with six lenses.

Antenna 1 ( Fig. 1 View FIGURE 1 C). Basal article of peduncle as long as rest of articles together, median one the smallest, basal article of accessory flagellum much longer than the apical one.

Antenna 2, not figured, its filament reaches the end of pleon.

Maxilliped 3 ( Fig. 1 View FIGURE 1 D). Basis 0.57 times as long as rest of articles combined, one pappose seta on medial margin, long outer process with two apical plumose setae, four plumose setae on its medial margin; two pappose setae on medial margin of ischium; merus with 2 short pappose setae on medial margin and a strong outer process exceeding distal extremity of carpus, 5 pappose setae on medial margin of carpus, 2 simple ones on outer margin; propodus 0.73 as long as carpus, 3 pappose setae on medial margin, short simple seta on outer margin; dactylus 0.54 times as long as propodus, robust terminal seta as long as dactylus.

Pereopod 1 ( Fig. 1 View FIGURE 1 E). Basis 0.46 times as long as entire pereopod, short setules and 7 much stronger on medial margin; merus as long as ischium, 1 setule on outer margin; carpus 1.45 times as long as merus, 1 setule on medial margin; propodus 2.75 times as long as carpus, 1.43 times as long as dactylus, 2 apical setules; dactylus 0.7 times as long as propodus, 1 stout and 4 slender terminal setae, 1 simple seta on medial margin. Exopods on maxilliped 3 and pereopod 1.

Pereopod 2 ( Fig. 2 View FIGURE 2 A). Broken, only basis present, 1 simple seta on outer margin.

Pereopod 3 ( Fig. 2 View FIGURE 2 B). Broken, only basis present, 1 simple seta on each margin, 2 simple ones on lateral side. Pereopod 4 ( Fig. 2 View FIGURE 2 C). Basis 0.40 times as long as entire pereopod, scaled tegument, 1 simple seta on each margin; merus 1.60 times as long as ischium, 1 seta on medial margin of ischium and merus; carpus 1.38 times as long as merus, 2 long annulate setae on outer margin; dactylus 0.61 times as long as carpus, 1 annulate seta on outer margin; dactylus half of propodus, stout terminal seta longer than dactylus, scaled tegument.

Pereopod 5 ( Fig. 2 View FIGURE 2 D). Basis 0.34 of entire pereopod length, 2 short setae on medial margin, one longer one on distal outer margin; 2 setae on outer margin of ischium; merus 2.60 times as long as ischium, 1 long seta on outer margin; carpus 1.54 times as long as merus, 1 broken annulate seta on medial distal margin; propodus, half of carpus, 1 annulate seta on medial distal margin; dactylus, half of propodus, with broken terminal seta.

Pleopod 1 ( Fig. 2 View FIGURE 2 E), with elongated rami.

Pleopod 2 ( Fig. 2 View FIGURE 2 F). Only basal article of exopod is present.

Uropod ( Fig. 2 View FIGURE 2 G). Peduncle 1.15 times pleonite 6 length, 7 short pappose setae and 3 longer ones on medial margin, 1.43 times as long as endopod, 7 setae longer than other 3 distal ones on medial, short stout terminal seta; broken exopod with 2 plumose long setae on medial margin, endopod with 11 pappose setae on medial margin, strong curved terminal short seta.

Etymology. The species is dedicated in honor of Prof. B. C. Guru, Utkal University, Bhubaneswar, Orissa, India, thesis advisor (in D. Sc.) of second author (TC).

Remarks. Cyclaspis gurui sp. nov. is closely related to C. jonesi Roccatagliata (1985) . It differs in the following characters: ocular lobe with 6 marginal lenses instead of 8; pereopod 1 with shorter basis, with more setae on medial margin of basis, shorter carpus, longer propodus and dactylus; uropodal peduncle with 3 vs. 5 longer setae on medial margin, endopod with 11 vs. 8 setae on medial margin, terminal strong short seta vs. thin and long one in C. jonesi .