CRUSTACEA. 



115 



Caprella acantiiifera (Skull-headed Skeleton Shrimp). — Leach, 

 Edin. Ency., vii, p. 404. — Bate and Westwood, p. 65. 

 It has been taken at Plymouth, on Drake's Island, at low 

 water ; as well as dredged in the Sound. Mr. Edward has sent 

 it to us from Banff. 



Caprella tuperculata. — Guerin, Scon. Ran. Crust., pi. xxviii, 

 Jig. 1. — Bate and Westivood, p. 68. 

 Mr. Couch found a considerable number in the crevices of a 

 crab-pot buoy, thrown on the coast at Polperro during a heavy 

 gale ; and Mr. R. Q. Couch obtained a female in Gwavas Lake, 

 off St. Michael's Mount. 



Caprella .eguilipra. — Say, Journ. Acad. Phil., I, p. 391. — Bate 

 and Westwood, p. 71. 



Taken in Plymouth Sound on buoys hid among weeds. 



Specimens apparently identical with this species have been 

 sent to us from the North of England, from Eio Janeiro, from 

 Hong Kong, and North America. 



ISOPODA ABERANTIA. 

 TANAIBJE. 

 Genus, Tanais. — Audouin and Milne Edwards. 



Head and first segment united. Body elongated. Antenna) 

 short. First hand large, clidactyle ; second pair slender. 



Tanais vpttatus. — Rathhe, Nor. Act., 20, pi. i. — Bate and West- 

 wood, p. 125. 

 Found at Polperro by Mr. Loughrin. 

 Tanais dulongii. — Audouin, Expl. pl. Egypt., t.xi,fg. 1. — Bate 

 and Westwood, p. 129. 

 This species was first taken on the coast of Egypt. We found 

 it in tolerable numbers in the worm-eaten timber during tho 

 erection of the battery inside the breakwater, Plymouth; andat 

 Polperro, where it was found by Mr. Loughrin. 



Genus, Atseudes. — Leach. 



Ed in. Ency., vol. viz, p. 10 1. 



Body elongated. Head having first segmenl united. First 

 antennae longer than the second. Second antennse with a Poli- 



