Dr. N. Auiiaiulalf on new Barnachs. -1;") 



])cn(lages moderate, rounded distally, witli a coni](l(tc fringe 

 of lon^ stout bail's on the posterior and distal mar^Miis. 



mra. 



Length of capituliini 4 



Breadth „ 35 



Ijt'iigth of peduncle 7 



Fi''. 1. Yvx. ] a. 



Locality. Nortliern end of Persian Gulf, shallow water. 

 Numerous specimens on the gills of Neptunus pelagicus, 

 together with specimens of Z). Vailkmti, Gruvel "^, wliich was 

 described from a specimen of the same crab from Suez. 



D. transversa is allied, as regards it* external characters, 

 to C. W. Aurivillius's D. bullataf, from which the presence 

 of a carina at once distinguishes it. The latter species was 

 described from the gills of a Javan Paliuurid. 



Dichelaspis bathynomij sp. n. (Fig. 2.) 



Capitulum amygdaloid, compressed, with seven valves. 

 Carina narrow, feebly expanded below, fully calcified at the 

 base only ; the basal arm short, almost in contact with the 

 scutum distally. 2'erya large, fully calcified round the 

 umbo, subtriangular, but rounded above ; the occludent 

 margin much shorter than the other two, the scutal margin 

 straight or slightly sinuous. Scuta large, completely divided ; 

 the occludent section horn-shapedj pointed below, truncated 



* Nouv. Archives Mus. Paris, (4) vi. (1902). 



t Kongl. Sveuska Vetensk.-Akad. Handl. xxvi. no. 7 (1894). 



