Bathypalaemonella hayashii Komai, 1995

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

Bathypalaemonella hayashii Komai, 1995

( Fig. 6e )

Bathypalaemonella sp. – Toriyama et al., 1990: 16, Pl.1a. Bathypalaemonella hayashii Komai, 1995: 40 , Figs. 1-4 ; Cleva,

2001: 763, Figs. 2 A-D, 3, 10B (color photograph).

Material examined. – 1 female 12.5 mm ( NTOU),” TAIWAN 2001”, R. V. “OCEAN RESEARCHER 1”, st. CD 139, 22 10.73’ N-120 14.1’E, 852- 718 m, 23 Nov.2001 .

Remarks. – This single specimen lacks the tip of the rostrum, and, unfortunately, the two second pereiopods, but an overall examination leads to the conclusion that it belongs to Bathypalaemonella hayashii .

Coloration. – Color photographs have been published by Toriyama et al.(1990) and Cleva (2001). No particular pattern ( Fig. 6e ): body pale pink and with antennules, scaphocerites, pereiopods, sixth abdominal somite and tailfan reddish-pink. Rostrum deep-red.

Distribution. – This species is known from Japan (311-815 m), Indonesia (439-605 m), New Caledonia (700 m), and Vanuatu (492-520 m). This is the first mention for Taiwan, where it was caught between 718 and 852 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.