Bathypalaemonetes brevirostris ( Bruce, 1986 )

Cleva, Régis, 2004, Stylodactylidae And Bathypalaemonellidae From Taiwan (Crustacea: Decapoda: Caridea), Raffles Bulletin of Zoology 52 (2), pp. 497-511 : 506

Bathypalaemonetes brevirostris ( Bruce, 1986)

( Fig. 6f )

Bathypalaemonella brevirostris Bruce, 1986: 252 , Figs. 1-5 . Bathypalaemonetes brevirostris – Cleva, 2001: 773, Figs. 7, 8.

Material examined. – 1 sp 8.5 mm (abdomen missing) ( NTOU), “ TAIWAN 2000”, R. V. “FISHERY RESEARCHER 1”, st. CP 58, 24 35.1’N- 122 05.8’E, 221-254 m, 04 Aug.2000 .

Diagnosis. – Though this specimen is very incomplete (abdomen missing), the cephalothorax and thoracic appendages are well preserved, allowing it to be identified with reasonable certainty, thanks to the following distinctive features: dorsal border of rostrum with both movable spines and fixed teeth; rostrum lateral carinae well-developed and broadly expanded posteriorly; mxp3 ultimate segment densely setose; chela of P1 densely setose along dactylar margin; chela of minor P2 very small and bowed; fingers of major P2 with marked tubercles; unguis and accessory spines of the dactyls of P3, P4, and P5 transversely ribbed.

Coloration. – Carapace pinkish, with some faint red longitudinal lines; large cheliped whitish ( Fig. 6f ). See also Bruce, 1986: 264.

Distribution. – North-west Australia (306-308 m); New Caledonia (315-410 m); Indonesia (315-348 m). Taiwan, first record, 221- 254 m.

Figures

Fig. 6. (a) Stylodactylus major Hayashi & Miyake, 1968, male 37 mm, TAIWAN 2001, st. CD136; (b) Stylodactylus libratus Chace, 1983, male 11 mm, Su-Aou fishing Port; (c) Stylodactylus licinus Chace, 1983, female ov. 16 mm, TAIWAN 2001, st. CD132; (d) Stylodactylus tokarensis Zarenkov,1968, male 8.5 mm, TAIWAN 2001, st. CP115; (e) Bathypalaemonella hayashii Komai, 1995, female 12.5 mm, TAIWAN 2001, st. CP139; (f) Bathypalaemonetes brevirostris (Bruce, 1986), 8.5 mm, TAIWAN 2000, st. CP58; (g) Bathypalaemonetes pilosipes (Bruce, 1986), female 10.5 mm, TAIWAN 2001, st. CD139; (h) Bathypalaemonetes chani, new species, female ov.15 mm, holotype, TAIWAN 2001, st. CD132.

Fig. 1. Stylodactylus major Hayashi & Miyake, 1968: (a), (b), anterior part of cephalothorax; (c), abdomen (part); (d), telson; (a) male 20 mm, TAIWAN 2002, st. CD 199; (b) male 37 mm, TAIWAN 2001, st. CD 136; (c),(d), male 32 mm TAIWAN 2001, st. CD 136. Scale bars: b= 10 mm; a, c, d = 5 mm.

Fig. 2. (a), Stylodactylus libratus Chace, 1983, male 11 mm, Su-Aou fishing Port; (b), Stylodactylus tokarensis Zarenkov, 1968, male 8.5 mm, TAIWAN 2001, st. CP 115. Scale bars= 5 mm.

Fig. 3. (a),(d), Stylodactylus sp. aff. pubescens Burukovsky, 1990, female ov. 12.5 mm,“TAIWAN 2003”, st. CD 210: (a), anterior part of cephalothorax; (d), right third pereiopod; (b),(c), Stylodactylus pubescens Burukovsky, 1990: (b), male 11.5 mm, Paratype, anterior part of cephalothorax; (c), female 10.5 mm, Paratype, anterior part of cephalothorax. Scale bars = 5 mm.

Fig. 4. Bathypalaemonetes chani, new species, female ov. 15 mm, Holotype, TAIWAN 2001, st. CD 132. Scale bar = 5 mm.