62 ZOOLOGY OF THE VOYAGE OF H.M.S. SAMARANG. 



Fore-legs not so long as the second pair, but extending considerably beyond the lamellar 

 appendage of the lower antennae. Third pair of legs longer than the whole body, with 

 many longitudinal rows of pointed teeth ; tarsi of the two last pairs of legs bifid. 



Abdomen with the middle lamina of the caudal fin grooved in the centre, and furnished 

 above with two rows of spines. 



Hab. Coast of Borneo, and Philippine Islands. 



Our figure is coloured from a living specimen taken by me in the China Sea. A. A. 



[Additional Species.'] 

 CRYPTOSOMA, Brutte. 



CKYPTOSOMA OKLENTIS, Adams Sf White. (Tab. XIII. Kg. 4.) 



Thorace rotundato; marginibus latero-posterioribus rectiusculis. Thorace post frontem et oculos 

 sine sulcis. 



Fronte tribus lobis subacutis. 



Pedibus gracilibus ; articulo praetarsali tenui, non incrassato. 



Hab. Maria Orientalia. 



Carapace subcircular, as broad as long, narrowed behind, covered with numerous small 

 red tubercles, and five rows of larger tubercles ; latero-anterior margins distinctly dentate ; 

 latero-anterior angle with a rather long and sharp spine. 



Front with three subacute lobes ; upper margin of orbit deeply notched in the middle. 



Fore-legs with the third joint armed with two long spines on the outer side near the 

 end, the fourth joint tubercular, the fifth joint compressed, with an elevated toothed crest 

 above, and covered externally with tubercular spines. 



Hind-legs smooth, slightly compressed, slender, with the pretarsal joints not thickened 

 or dilated. 



Abdomen (in the male) four-jointed. 



Hab. Eastern Seas. 



This species comes very near to Cryptosomu cristatum, figured by Brulle in Webb and 

 Berthelot's Hist, des lies Canaries (Tab. Crust, fig. 2). The Mursia cristata, Leach j Cycloes 

 granulosa, De Haan, Faun. Jap. 1. 19. f . 3 ; Thealia acanthophora, Lucas, Ann. Soc. Ent. Er. 

 1839, p. 579. t. 21. f. 1 {Mursia armata, De Haan, Faun. Jap. p. 73. t. 19. f. 2) ; and this 

 species, belong to a group of Calappidce which seems very widely distributed. 



