CRUSTACEA. ' 499 



GrENUs, Atyltts. — Leach. 



Zool. Misc., ii, pi. Ixix. 



Like Bexamine, but liaving the mandibles furnished with a 

 palpiform appendage. 



Atyltjs swammerdamii. — Milne Edwards, Hist, des Crust., t. in. 

 Bate and Westwood'' s Sessile Eyed Crust, vol. i, p. 246. 

 We have taken it in Plymouth Sound, and Mr. Loughrin has 

 sent it to us from Polperro. 



Attlus bispissostjs. — Spence Bate, Cat. Amph. Brit. Mus., p. 104, 

 pi. xxvii, fig. i. — Bate and Westwood, p. 250. 

 We have dredged this species on the sandy bottom in Whit- 

 sand Bay, not far from the Eame Head, and have had it sent to 

 us from Falmouth, as well as from Scotland and the coast of 

 Northumberland. 



GrENTTs, Pherusa. — LeacJi. 



Edin. Ency., vii, p. 432. 



Like Atylus, but Telson not divided. 

 Pherusa bicuspis. — Kroyer, Gron Amph., p. 45, pi. i, fig. 1. 

 Bate and Westwood, p. 253. 



We have had specimens taken at Falmouth, and Mr. Edward 

 has sent it to iis from Banff. 



Pherusa exjcicola. — Leach, Edin. Ency. vii. — Bate and Westwood, 

 p 255. 

 This is the type of the genus, and was taken first by Montagu 

 from rocky shores in Devonshire. We have had specimens from 

 Falmouth ; from Polperro, where they were found by Mr. Loughrin; 

 and from Banff, where they were procured by Mr. Edward, the 

 Scottish naturalist. 



Genus, Leucothoe. — Leach. 



Antennse simple, subequal. Hands unequal. Second larger 

 than the first, formed by the carpus or wrist being produced to 

 reach beyond the next joint, and meeting the extremity of the 

 finger. 



Leucothoe articulosa. — Montagu, Lin. Trans., vii, p. 70, pi. vi, 

 fig. 6. — Bate and Westwood, p. 271. 



