70 CAPRELLLD^. 



second segment of the body. The hand is ovate, the 

 palm straight, and defined by a small denticle. 



We have received this species from Guernsey, where 

 it was taken by the Rev. A. M. Norman, and from Mill- 

 port, N.B., where it was captured by Mr. Robertson. 

 A considerable number were found by Mr. T. L. Couch 

 in the crevices of a crab-pot buoy thrown on the coast at 

 Polperro during a heavy gale in 1854-, and Mr. R. Q. 

 Couch obtained the female at Mount's Bay, in Gwavas 

 Lake, and off St. Michael's Mount, among confervas. 

 Specimens from the Frith of Forth are contained in the 

 British Museum Collection. 



In the male of this species the form of the palm is 

 very liable to vary from the character as exhibited in the 

 female to that of the male, as above described. 



It is not hastily that we have come to the conclusion 

 that the two animals represented above are but sexes of 

 one species. The animals are from the same locality, and 

 their distinctive characters do not appear to have a 

 higher value than such as indicate the sexes of one and 

 the same species. We have been induced to identify it 

 with Goodsir's C. tuberculata by the pointed tooth upon 

 the head, rather than to associate the latter with C. 

 hystrix (acuminifera), which also may possibly be but a 

 variety of this same species. 



