CARCINOLOGICAL STUDIES, 67 



Breadth of the cephalothorax 19 mm. 

 Length » » » I2V4 » 



Breadth of the front . . . 93/4 » 

 These measurements are in the male oï Eriphia laevimana , 

 var. Smithii, respectively 18 mm., 12*/^ mm. and 9 mm. 



15. G 7110 c ap hyra t run cat ifr ons de Man. 



Goniocaphyra truncatifrons, de Man, in : Archiv f. Natnrgeschichte, 

 1888, Bd. 53, p. 339, PI. XIV, fig. 1. 



This species is identical with Catoptrics nitidus 

 A. Milne Edw. 



At the time when I described the Goniocaphyra , I sup- 

 posed Catoptrus nitidus to be a quite different form , 

 especially because I was led to the opinion that the 

 Goniocaphyra ought to be referred to the Portunidae on 

 account of its presumptive affinities with the genus Caphyra 

 Guerin. 



Prof. Milne Edwards kindly sent me his own drawing 

 of Catoptrus nitidus, which has never been published as 

 far as I am aware. The cephalothorax attains in the adult 

 specimens a breadth of 23 mm., the original specimen of 

 Goniocaphyra has not yet half that size. In the adult male 

 the hands , especially the larger one , seem to present a 

 somewhat different form as in the younger male and in 

 the female. This observation is the result of a comparison 

 of the drawing of Milne Edwards with my own figures and 

 a female specimen from the Pacific Ocean , which 1 have 

 before me. The cephalothorax of this latter specimen is 12 

 mm. broad. According to the drawing of Prof. Milne Edwards, 

 the fingers of the larger hand of the adult male are little 

 more than half as long as the palm , whereas they are 

 exactly as long as the palm in the young male specimen 

 I have described. The fingers should be , moreover, com- 

 paratively higher and less slender in the adult male than 

 in the young and in the female. 



Catoptrus nitidus A. Milne Edw. has been recorded from 

 the Javan Sea and from the Samoa Islands. 



Notes from tJae JLieyden IMuseura, Vol. JUL 



