1 



obtained in the Indian Seas. 2G5 



or pectinate and reaching a fair distance along the ischio- 

 podite. Tliey are most easily seen when the legs are drawn 

 away from the sides of the earaj)acc, for these small i)rocesses, 

 which are rigidly fixed to the coxopoditcs, then project 

 dorsally — free and solitary. \\'hcn the legs are drawn up 

 towards the sides of the carapace each process lies in close 

 <.'ontact with the posterior surface of the basipodite and 

 ischiopodite of its own leg, and gives support to these joints 

 in forward movements (legs being fixed) of the body of the 

 crab. The largest process is that of the third or largest pair 

 of legs. The process arises from the coKopodite immediately 

 aI)ove and continuous with the usual angular projection of 

 the coxopodite in the region of the hinge-joint between 

 coxo- and ba>-ipodito. 



The first two abdominal segments are very short : the 

 first is very broad, but does not reach the bases of the last 

 pair of legs ; it is wedged firmly in between the posterior 

 border of the carapace and the thorax. 



Colour in life dark muddy grey. 



One specimen (a male of the above dimensions) was 

 caught at Sta. 3.28, Gulf of Martaban, 61 fathoms. 



This new species differs in the following points from the 

 hitherto described species : — In C. ciliata the outer surface of 

 palm is smooth and polished ; carapace punctate and regions 

 not distinguishable; third pair of ambulatory legs shorter. 

 In C. arcuuta basal anteunal joint shorter; upper margin of 

 palm not cristate; outer surface of pahn smooth and naked ; 

 general configuration of carapace different. In C. hispida a 

 thicker coating of hairs^ and hairs coarser; carapace pitted; 

 front broader; eyes deficient in pigment. In C. (?) Icevis 

 carapace smooth and shiny ; front wider ; wrist and outer 

 surface of palm smooth. With C. villosa and C. leptocheles 

 (Zehuter) this new species has very little in common. 



C. (jrannlosa will be figured in the next issue of " Illustra- 

 tions of the Zoology of K.I.M.S. 'Investigator.'" 



Fam. Palicidse. 



Palicus, Pliilippi. 



Palicus investiyatoris, Alcock, var. 



I'alicus investit/aton's, Alcock, Cflrc. Faun. lud., no. 6, Brach. Catom. 

 p. 455. 



This variety difi'ers from the " type " only in the following 

 characters: — 



(1) There is a small but distinct fissure towards the inner 

 end of the lower border of the orbit. 



Ann. ^- Mar/. N. Hist. Ser. 7. (W. xv. 19 



