Hartmanodes nyei (Shoemaker, 1933)

Durham, Elizabeth L. & White, Kristine N., 2023, Caribbean Amphipoda (Crustacea) of Panama. Part I: parvorder Oedicerotidira, ZooKeys 1159, pp. 37-50 : 37

Hartmanodes nyei (Shoemaker, 1933)

Figs 1 , 2 , 6A

Monoculodes nyei Shoemaker, 1933: 9, fig. 5.

Hartmanodes nyei : Bousfield and Chevrier 1996: 92; LeCroy 2000: 169, fig. 205.

Material examined.

Panama • 1 ♀, 4.0 mm; Bocas del Toro, Crawl Cay ; 9.2475°N, 82.1290°W; depth 5 m, in sand; 12 Aug 2021; K.N. White leg; USNM 1522425 • 1 ♂, 3.5 mm; same station data as for preceding; USNM 1522426 • 4 ♀; same station data as for preceding; USNM 1522427 • 1 ♀, 1 ♂, 2 juvenile; Bocas del Toro, Crawl Caye ; 9.2376°N, 82.1438°W; depth 2 m, in sand, 11 Aug 2021; K.N. White leg.; USNM 1522428 .

Diagnosis.

Antenna 1 of female subequal to peduncle of antenna 2; antenna 2 of male much longer than that of female; head, anterodorsal angle broadly subquadrate. Pereopods 3 and 4 propodus subrectangular, dactylus elongate, slender; pereopods 5 and 6 dactylus elongate, subequal to propodus in length; pereopod 7 basis posterior margin with several short setae, carpus and propodus, posterior margin with several spine groups, dactylus elongate, slender.

Distribution.

U.S.A.: Gulf of Mexico ( Rakocinski et al. 1993), South Florida ( Shoemaker 1933; Thomas 1993), Pacific California ( Barnard 1962; Bousfield and Chevrier 1996); South America: Brazil ( Shoemaker 1933); Central America: Belize ( Thomas 1993), Panama (present study).

Ecology.

These amphipods burrow into sand in shallow subtidal habitats.

Figures

Figure 1. Hartmanodes nyei, female, 4.0 mm, pereopod 3, pereopod 3 dactyl with setae removed, pereopod 6 and 7, antennae 1 and 2; male, 3.5 mm, antenna 1 and antenna 2 (broken). Scale bars: 0.1 mm.

Figure 2. Hartmanodes nyei, female, 4.0 mm, gnathopods 1 and 2 lateral. Scale bar 0.1 mm.

Figure 6. Photographs of live specimens A Hartmanodes nyei, male B Synchelidium purpurivitellum sp. nov. female. Scale bar: 1.0 mm.