274 Rev. A. M. Norman on some undescribed 



The right leg is furnished with a conspicuous brush of hair on 

 the lower edge of the inner margin of the third joint ; the wrist 

 has spinose tubercles on the inner margin ; the hand elongate- 

 ovate, about equal to the wrist in length, not sculptured (neither 

 spinose nor granular), clothed with scattered hair ; fingers half the 

 total length of the hand. Left hand very much smaller, with 

 nearly parallel sides, and not angulated on the centre of the upper 

 surface ; fingers elongated, not toothed. Second and third legs 

 slightly hairy, their upper margins not spinose. Colour reddish 

 brown, uniform all over. Total length 1 inch. 



The hairiness of the fore legs distinguishes this species from 

 all its British congeners except cuanensis and Thompsoni; and 

 from these, as well as, I believe, from all our species, it may be 

 at once known by the smoothness of the hands, which have 

 neither surface nor margins spinose or granular. The form of 

 the fore legs in P. Icevis approaches closely to that of P. ferru- 

 gineus ; but the surface of the former is minutely granular, and 

 never hairy, the wrist and fore-arm are also more spiny on the 

 inner edge, and the hand is always pale in colour, with a bright 

 crimson central stain, which bifurcates and extends up the 

 fingers. 



In July 1859, when dredging in Moulin Huet Bay, Guernsey, 

 I procured two small individuals of the new species now cha- 

 racterized, Mhich were at once laid aside for description. This 

 summer, while dredging with my friend Mr. Jeffreys in the 

 Shetland Isles, two larger specimens were taken in Dourie Voe; 

 and while drawing up this descri])tion, and looking through my 

 collection of Hermit Crabs, I found a fifth example, mixed with 

 the young of P. Thompsoni, which was taken, in February 1853, 

 in Lamlash Bay. 



Fam. PalaemonidaB. 



Subfam. Alph^ein^ (Dana). 



Genus Hippolyte (Leach). 



Rostrum sat longum, plus minusve ensiforme, non mobile. Ab- 

 dominis segmentum tertium pone productum. Oculi salientes. 

 Antennce internee plerumque spina, externae semper squama basali 

 ornataj ; internse duobus flagellis confectse. Maxillipechim articulus 

 ultimus compressus, pectinatus. Pedes primi maxillipedibus bre- 

 viores, manibusque brevibus instructi ; secundi multo longiores, car- 

 pum annulati. 



Rostrum long, more or less sword-shaped, not articulated at 

 the base. Third segment of abdomen produced behind, and the 

 abdomen thence suddenly bent downwards. Eyes prominent. 

 Internal antennae generally with a spine externally at their base. 



