114 CARCINOLOGICAL STUDIES. 



little narrower, less enlarged and projects a little more 

 forward than that of Clib. taeniatus. The fingers of the 

 hands of Clih. taeniatus leave a small hiatus between them 

 when closed , which is not the case in Clib. vulgaris ; the 

 dentiform tubercles , with which the upper surface of the 

 hands is armed, are a little less numerous in 

 the species of Quoy and Gaimard , but conical, higher 

 and more acute. The horny margin at the end of the 

 fingers of Clih. vulgaris is narrow and half as long as the 

 fingers, but somewhat broader and shorter in Clib. tae- 

 niatus. The inner margin of the under surface of the arms 

 does not present a trace of the elevated dentiform tubercle , 

 which exists in Clib. vulgaris [infraspinatus Hilgend.). The four 

 other pairs of legs present about the same form and struc- 

 ture in both species. Both species also agree very much with 

 one another , as regards the coloration , but , as 1 already 

 observed , the anterior part of the cephalothorax is marked 

 with longitudinal bands , which are not found in Clib. vul- 

 garis. Two narrow red lines run in Clib. taeniatus from 

 the median frontal tooth to the cervical suture; these two 

 lines are close together and slightly diverge backwards; 

 quite in the middle between these lines and the lateral 

 margins of the cephalothorax , on each side another sinuous 

 line is observed , the lateral margins are also striated and 

 between the lateral margins and the submedian lines another 

 red band exists, which posteriorly is divided in two lines. 

 The eye-peduncles are marked with a red longitudinal line 

 in both species. The anterior legs of Clib. taeniatus are 

 longitudinally striated by several narrow red lines , but 

 this is not the case in Clih. vulgaris. The high conical 

 tubercles on the hands of Glib, taeniatus are white and 

 contrast strongly with the ground-colour of the palm. The 

 legs of the second and of the third pair present a similar 

 system of coloration in both species and they are also 

 equally hairy. 



Clib. padavensis de Man, from the Mergui Archipelago , 

 may be recognized at first sight by the structure of the 



Notes from the Leyden JMuseura, Vol. X.II. 



