BRACHYURA. 383 



Paramithrax (Chlorinoides) longispinus (DE HAAN), var. bispinosus, nov. 



Localities : Pearl banks, two specimens ; coral reefs, Gulf of Manaar, three 

 specimens ; off Kaltura, one specimen ; Trincomalee, one specimen ; south-east of 

 Ceylon, 18 fathoms, one specimen ; deep water, off Galle, two specimens. 



Description: C.I. of an ovigerous female = 12 '00 (posterior and rostral spines 

 excluded). For characters of the species see A.I, p. 242. 



The examples include two ovigerous females, one adult non-ovigerous female, five 

 adult males, one doubtfully adult male, and one young male. 



They all differ from DE HAAN'S figure (" F. Japon. Cr.," pi. xxiii., fig. 2) in the 

 absence of the most anterior of the three supra-ocular spines. I name them var. 

 bispinosus. The " Challenger " specimens included by MIERS under Paramithrax 

 coppingeri illustrate a parallel variation in that closely allied species ; the P. coppingeri 

 specimens of HASWELL have three supra-ocular spines the " Challenger " examples 

 have two only. 



Schizophrys aspera (H. MILNE-EDWARDS, 1834) A.I, p. 243, pi. xxxv., fig. 1. 



Localities : Off Mutwal Island, two specimens (young ? and adult <$ ) ; Jokkenpiddi 

 Paar, one specimen (young c? ) ; pearl banks, one specimen (young <? ) ; coral reefs, 

 Gulf of Manaar, one specimen (young ? ). 



Description: C.I. of the adult male = 29. 



Cyclax suborbicularis (STIMPSON), 1857 A.I, p. 245. 



Locality : Galle, lagoon, one specimen. 



Description : A young male. It agrees in many points with A. MILNE-EDWARDS' 

 fig. 2 of a young form ('Nouv. Archiv. du Mus.,' viii., p. 236, pi. x., 1872). The 

 orbit, however, is different from his figures, both of young and adult, but as growth- 

 changes are very considerable in this species, I do not exclude my specimen from it. 



Stenocionops cervicornis (HERBST), 1803 A.1, p. 248. 



Localities : Jokkenpiddi Paar, one specimen (b) ; Cheval Paar, two specimens (a, c) ; 

 pearl banks, Gulf of Manaar, three specimens ; Chilaw Paar, three specimens ; coral 

 reefs, Gulf of Manaar, four specimens. 



Description : Among the specimens is one ovigerous female, one adult uon-ovigerous 

 female, and at least one adult male. 



C.I. C.b. -=-C.l. Rost. spines C.I. Sup.-oc.spine-^-C.l. Eye stalk 4- C.I. 



(a) ovigerous ? . . 34*50 0'42 0'41 0'34 



(b) adult ? . . . 25-00 071 0'35 0'37 0'34 



(c) adult c? ... 42-00 



The posterior projection is, in all the specimens, blunter and more broadly triangular 

 than in CUVIER'S figure in the " Hegne Animal" (pi. xxxi., fig. 1), i.e., it is to some 



