Periclimenaeus cf. hecate Nobili, 1904

Li, Xinzheng, Bruce, Alexander J. & Manning *, Raymond B., 2004, Some Palaemonid Shrimps (Crustacea: Decapoda) From Northern South China Sea, With Descripitions Of Two New Species, Raffles Bulletin of Zoology 52 (2), pp. 513-553 : 538

Periclimenaeus cf. hecate Nobili, 1904

Coralliocaris hecate Nobili, 1904: 232 ; 1906: 58, pl. 3, fig. 2; Borradaile, 1917: 385.

Periclimenaeus hecate - Balss, 1921: 14; Bruce, 1974: 1574, Figs. 11 , 12 , 13E ; 2002b: 581, Fig. 8 ; 2003: 224; Müller, 1993: 57; Li, 1996: 228, Fig. 6; 2000: 124, Fig. 143; Li & Liu, 2003: Fig. 7 .

Material examined. – 1 ovig female, CL 2.0 mm, CN X295 B-25B, Beibu Bay, [20ºN, 108º30’E], 64m, soft sandy mud, AT, coll. De, 18 Oct.1962 .

Distribution. – Previously recorded from Djibouti, Kenya, Comoro Islands, Seychelle Islands, La Reunion, Maldive Islands, Indonesia, Nansha Islands, Western Australia and Queensland.

Remarks. – The single ovigerous female lacks both second pereiopods, and the rostral formula is 3/0. However, its slightly up-curved rostrum and few dorsal rostral teeth (3), ratio of rostrum to carapace (0.43), chela to carpus of first pereiopod (0.9), length to depth of palm of first pereiopod (1.8), propodus of third pereiopod to carapace (0.47), short and deep of dactyls of ambulatory pereiopods, indicate it is consistent with Periclimenaeus hecate ( Nobili, 1904) . It also resembles P. serrula Bruce & Coombes, 1995 . Its relative longer spines on the telson (0.1 of telson length in dorsolateral spines and 0.13 in intermediate posterior spines), may distinguish it from P. serrula (the ratios are 0.07 and 0.1 respectively).

Figures

Fig. 11. Palaemon serrifer (Stimpson, 1860). a, carapace and rostrum, lateral view; b, antennule; c, mandible.

Fig. 12. Palaemon sewelli (Kemp, 1925). a, carapace and rostrum, lateral view; b, left mandible; c, right 2nd pereiopod; d, right 3rd pereiopod.

Fig. 13. Urocaridella antonbruuni (Bruce, 1967). a, carapace and rostrum, lateral view; b, mandible; c, thoracic pleuron 3-8, lateral view, show the pleurobranchiae; d, 3rd maxilliped; e, 1st pereiopod; f, 2nd pereiopod; g, abdomen, lateral view; h, telson and uropod, dorsal view; i, tip of telson, dorsal view.

Fig.8. Macrobrachium mammillodactylus (Thallwitz, 1892). a, carapace and anterior appendages, lateral view; b, mandible; c, 2nd pereiopod; d, same, chela and carpus; e, telson and uropod.

Fig. 7. Leptocarpus potamiscus (Kemp, 1917). a, carapace and rostrum; b, mandible, lateral view; c, 2nd pereiopod.