CRUSTACEA. 



One specimen has been taken by us in Plymouth Sound, another 

 was sent to us from the Shetlands. 



Genus, Podooerus. — Leach. 



Linn. Trans, xi, p. 360. 



First antennse with minute second appendage ; second antennae 

 not multarticulate, laminating in short strong spines or hooks. 

 Hands unequal, second pair largest. Telson single, scalelike. 



PoDocERUS PULCHELLUS. — LeacJi, Edin. Ency., vii, p. 433. — Bate 

 and Westwood, I.e., p. 436. 

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

 sent it to us from Banff. It closely resembles P. validus, Dana, 

 of South America. 



PoDOCERus vARiEGATtJS. — Leach, Edin. Ency., vii, p. 433. — Bate 

 and Westwood, p. 439. 



This species is very common amongst the weed attached to 

 buoys and floating objects, amongst which, and the sertularia, 

 they build and occupy nests. 



We have had specimens from Mr. Edward, of Banff, and Mr. 

 Loughrin, of Polperro. 



PoDocERUS CAPiLLATUS. — Rathlce, Nov. Acta. Acad. Scop., xx, 

 pi. iv,fig. 8. — Bate and Westwood, p. 442. 

 This species also builds very pretty nests among the branches 

 of various kinds of zoophytes. In one of these we found a 

 mother with the young of different ages, demonstrating tolerably 

 clearly in this comparatively low group of animals the instinct 

 of maternal love. 



Podooerus falcatus. — Montag%(,, Lin. Trans., ix, p. 100, pi. v,fig. 

 2. — Bate and Westwood, p. 445. 

 Dredged in Plymouth Soiind, and along the southern coast of 

 Cornwall. 



GrENUs, Cerapus. — Say. 

 Jour. Acad. Phi., i, p. 49. 



Body not laterally compressed. Antennae subequal, first pair 

 with a second branch. Second pair with flagellum multarticulate. 

 First pair of hands subchelate, second larger than the first, and 



Y 



