Glyphocrangon sibogae de Man, 1918

Komai, Tomoyuki, Yang, Chien-Hui & Chan, Tin-Yam, 2020, Deep-sea shrimps of the genus Glyphocrangon A. Milne-Edwards, 1881 (Decapoda: Caridea: Glyphocrangonidae) collected by the SJADES 2018 expedition off Java, Indonesia, with description of one new species, Raffles Bulletin of Zoology 68, pp. 636-653 : 652

Glyphocrangon sibogae de Man, 1918

( Fig. 1E, F )

Material examined. SJADES 2018, stn CP 24, Sunda Strait (S of Panaitan Island), 06°47.34′S, 105°06.04′E to 06°47.91′S, 105°04.49′E, 1,044–1,068 m, gravels with pieces of wood, 18 March 2018, beam trawl, 1 juvenile (cl 11.1 mm), ZRC 2020.0309 ; stn CP 44, S of Cilacap , 08°10.07′S, 108°37.44′E to 08°09.80′S, 108°37.15′E, 1,013– 970 m, mud with pieces of wood, 31 March 2018, beam trawl, 1 ovigerous female (cl 33.4 mm), ZRC 2020.0310 .

Description. See Komai (2004b).

Colouration in fresh condition. Adult ( Fig. 1E ). Rostrum red; carapace anterior part (postrostral to postorbital regions, branchiostegal spines and posterior branchiostegites) also red, dorsum and anterior branchiostegites white; pleon generally reddish, dorsally paler; cornea pigmented, reflective; antennae, thoracic, and pleonal appendages red.

Juvenile ( Fig. 1F ). Body entirely whitish in general; basal part of rostrum and anterior part of carapace with tinge of red; cornea pigmented, reflective as in adults; antennae pale pink; maxilliped 3 and pereopod 1 pink, pereopods 2–5 semi-translucent.

Distribution. Known only from Indonesia; 200–1,112 m ( Komai, 2004b; this study).

Remarks. The living colouration of this species is described in this study for the first time. As illustrated, the overall colouration changes with growth in this species. Glyphocrangon sibogae de Man, 1918: 295 (type locality: Flores Sea, Indonesia); 1920: 233, pl. 19, fig. 59, pl. 20, fig. 59a–e. — Chace, 1984: 9. –– Komai, 2004b: 464, figs. 38, 39, 117.

Figures

Fig. 1. Habitus in lateral view, showing living colouration. A, Glyphocrangon hakuhoae Takeda & Hanamura, 1994, male (cl 12.4 mm), ZRC 2020.0295; B, G. indonesiensis Komai, 2004b, ovigerous female (cl 28.1 mm), ZRC 2020.0301; C, G. proxima Komai, 2004b, male (cl 12.3 mm), ZRC 2020.0297; D, G. serratirostris, new species, male paratype (cl 20.0 mm), ZRC 2020.0299; E, G. sibogae de Man, 1918, ovigerous female (cl 33.4 mm), ZRC 2020.0310; F, G. sibogae de Man, 1918, juvenile (cl 11.1 mm), ZRC 2020.0309.