CETTSTACEA. 511 



aceous appendage. Last pair of caudal appendages two- 

 branched. 



Apseitdes talpa. — Montagu, Lin. Trans., ix, p. 98, t. 6, /. 6. — 

 Bate and Westivood'' s Sessile-Eyed Crustacea, vol. ii, p. 149. 

 The first specimen of this very interesting animal was found by 

 Col. Montagu on a large scallop &h.e\\{Pecten maximus),sd, Salcombe, 

 on the south coast of Devon. It has been found in the Channel 

 Isles, and in Plymouth Sound. 



ANTSURIBM. 



GrENFs, Anthuea. — Leach. 

 Bate and Westwood, p. 157. 

 Body slender, elongated. Head and segments quite distinct. 

 First pair of legs robust and imperfectly subchelate, all the rest 

 filiform. Tail appendages arranged to be dorsally concave. 

 Anthuea geaoilis. — Montagu, p. 104. — Bate and Westwood, p. 162. 

 First taken by Col. Montagu, many years ago, at his usual 

 hunting ground, Salcombe harbour. It has since been taken at 

 Falmouth, and off the south coast. 



ANCEIBM. 



Genus, A-NCeus. — Risso. 



Crust, des Nice, p. 51.— Bate and Westwood, p. 170. 



Male. Head square. Mandibles developed anteriorly like 



antennae, body having two segments wanting, the anterior division 



(pereion) much broader than the posterior (pleon). Only five 



pairs of walking legs, no hands. 



Anceus masillaeis. — Montagu, Lin. Trans., vii, p. 65, t. 6, /. 2. — 

 Bate and Westwood, p. 187. 

 In crevices of rocks between tides all round the coast. It has 

 been taken in such places at extreme low water, at Gyllyngvase, 

 near Falmouth, as well as at Polperro, and Plymouth. It has 

 also been taken in trawl refuse. 



GrENUs, Peanisa. (Female of Anceus.) 

 Head pointed. Antennae, as well as the appendages of the 

 mouth, small. Three last segments of the anterior portion of the 

 body united into one. Posterior portion much narrower than 

 the anterior. Five legs, slender. 



