Crustacea J hy R. I. Pocock. 427 



tliird, fourth, and fifth segments fused, the sixth very small 

 and imbedded in an excavation at the base of the external 

 maxillipedes. 



$. Length and width of carapace 11 millim.; length of 

 chelipede 25 millim. 



?. Length and width of carapace 10 millim.; length of 

 chelipede 14. 



A number of specimens of this species were dredged by 

 the ' Porcupine ' in the Mediterranean. Some of these 

 specimens were presented to the British Museum by the 

 Rev. A. M. Norman and were labelled " ^. nux^ Norm." 

 This name is included in the list of the species composing 

 the j\Iuseum Normanianum, and also in the list of the species 

 of Ehalia given by j\Ir. Miers in his Report on the Brachyura 

 of the ' Challenger.' But no description of the species has yet 

 been published. I have consequently taken this oppor- 

 tunity of characterizing it and have selected as types an adult 

 male and female specimen belonging to the series dredged in 

 the Mediterranean. In some of the small specimens of this 

 series the larger tubercles on the gastric region of the 

 cephalothorax are wholly absent. 



A single damaged male specimen was obtained by Mr. 

 Green at a depth of 315 fathoms. This specimen differs 

 from all the Mediterranean forms that I have seen in having 

 the legs almost wholly smooth. 



Alunida hamjjica (Pennant). 



Two specimens from 250 or 315 fath. 



Although Prof. G. O. Sars has attempted to show that 

 M. Rondeletii is specifically distinct from M. rugosa, never- 

 theless I agree with my friend Mr. A. O. Walker in thinking 

 that the two names must be referred to one and the same 

 species, which, in accordance with the laws of priority, must 

 be termed M. bamffica, Pennant. 



Eupagurus henihardus (Linn.). 



For synonyms and distribution of this and the following two species of 

 Eupagurus, see Henderson, " A Synopsis of the British Pa^uridce,'' 

 Proc. Pliys. Soc. Edinb. 1886, p. 65. 



One specimen from 55 fath. 

 Common in the North Atlantic. 



Eupagurus pubescens (Kroyer). 

 Eupagurus pubescens (Kroyer), Henderson, loc. cit. p. 71. 

 One specimen from 200 fatli. 

 Common in the North Atlantic. 



31* 



