SUNAMPHITHOE HAMULUS. 431 



serrated, acts and forms a strong prehensile grasp. The 

 last pair of caudal appendages have the branches short, 

 the inner being broadly foliaceous, the outer tipped with 

 two short hooks ; the telson terminates in a strong and 

 well-formed hook, that is evidently intended for some 

 special purpose. 



We have received specimens of this species, of which 

 the habits are unknown, from the Moray Frith, where 

 they were taken by the Rev. Geo. Gordon ; from Rock- 

 pools, Penzance, where they were found by Mr. Harris. 

 They have been sent to us from the Shetlands, by the 

 late Mr. Barlee ; and the Rev. A. M. Norman has 

 dredged them in from two to five fathom.s in the Outer 

 Skerries harbour in company with Mr. Jeffreys. 



