Periclimenaeus rhodope ( 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 : 540-541

Periclimenaeus rhodope ( Nobili, 1904)

( Fig. 26 )

Coralliocaris (Onycocaris) rhodope Nobili, 1904: 232 ; 1906: 61, pl. 2, fig. 8; Borradaile, 1917: 385.

Onycocaris rhodope – Kemp, 1922: 278.

Periclimenaues rhodope – Bruce, 1974: 1558, Figs. 1-2 , 3 a-b, 7ab; 2003: 225; Müller, 1993: 61; Li, 1997: 235, Fig. 9 ; 2000: 133, Fig. 160.

Material examined. – 1 ovig female, 1 juv., CN 80 X-110B, Jinyin Island , Xisha Islands, associated with Siphonochalina sp. , coll. Carcinology Group, 16 May.1980 .

Distribution. – Previously recorded from type locality Djibouti, Zanzibar, Tanganyika, Kenya, Somalia, Queensland and Xisha Islands, South China Sea. Associated with sponges.

Remarks. – This species is closely related to Periclimenaeus holthuisi Bruce, 1969b . As indicated by Bruce (1974), Periclimenaeus rhodope can be distinguished from the latter by the distolateral spine of the scaphocerite greatly over-reaching the lamina, which almost fails to reach the end of the lamina in P. holthuisi . The palm and carpus of the second pereiopods are finely tuberculate and the merus of third pereiopod is ventrally tuberculate in P. rhodope , an unusual features in this genus. The denticles on the dactyl and unguis of the third pereiopod are very acute ( Fig. 22 ), but are finely crenulate in P. holthuisi (Holthuis 1952: Fig. 55i).

Figures

Fig. 26. Periclimenaeus rhodope (Nobili, 1904). a, anterior carapace and rostrum, lateral view; b, scaphocerite; c, major 2nd pereiopod; d, minor 2nd pereiopod; e, 3rd pereiopod; f, same, dactyl and propodus.

Fig. 1. Coutierella tonkinensis Sollaud, 1914. a, carapace and rostrum, lateral view; b, mandible; c, 1st maxilliped; d, telson; e, tip of telson.

Fig. 2. Exopalaemon orientis Holthuis, 1950. a, carapace and rostrum, lateral view; b, mandible; c, 1st pereiopod; d, 2nd pereiopod; e, 3rd pereiopod; f, same, dactyl and propodus; g, 5th pereiopod; h, same, dactyl and propodus.

Fig. 3. Leander tenuicornis (Say, 1818). a, carapace and rostrum, lateral view, female; b, same, male; c, antennule.

Fig. 9. Palaemon debilis Dana, 1852. a, carapace and rostrum, lateral view; b, antennule; c, mandible; d, 1st pleopod, male.

Fig. 22. Paranchistus liui, new species. a, antennule; b, antenna; c, mandible; d, maxillula; e, maxilla; f, 1st maxilliped; g, 2nd maxilliped; h, 3rd maxilliped.