ONISCIDJE. 



PORCELLIO SCABER, Latreille. 

 Common everywhere. 



PLATYARTHRUS HOFFMANNSEGGI, Brandt. 



1898. Platyarthrus Hoffmannseyyi, G. 0. Sars, p. 175, pi. Ixxvi. 



tig. 2. 



Berry Head near Torquay, and Plymouth. 



Fam. 4. ARMADILLIDIID^E. 



AKMADILLIDIUM VULC4ARE (Latreille). 

 Abundant in the two counties. 



Tribe VI. EPIC ARID A, G. 0. Sars. 

 Fain. 1. B o P Y i; T D JE. 



BOPYRUS SQUILLARUM, Latreille. 



18(37. Bopyrus squillarum, Bate & Wostwood, vol. ii. p. 218. 



1890. Bopyrus Vougerouxii, Giard & Bonnier, " Prod, d'une Monog. 



Epicarides du Golfe de Naples," Bull. Sei. de France et Belgique, 



vol. xxii. p. 369. 



1897. Bopyrus squillarum, G. O. Sars, p. 197, pi. Ixxxiv. fig. 1. 

 1900. Sopyrus Foii>?erou.ti, Bonnier, " Contrib. a Fetude des Epi- 



carides :' Les Bopyridae," p. 358, pis. xxxv,, xxxvi., xxxvii. 



figs. 1-4. 



Common on Palcemon serratus. 



BOPYRINA G-IARDI, Bonnier. 



1900. Bopyrina Giardi, Bonnier, 1. c. p. 365, pis. xxxviii., xxxix., 

 &xl. 



On Hippolyte varians at Ilfracombe (Stebbing, ' History of 

 Crustacea/ 1893, p. 417). 



BOPYROIDES HIPPOLYTES (Kroyer). 



1867. Gyge hippolytes, Bate & Westwood, vol. ii. p. 230. 

 1897. Gyye hippolytes, G. O. Sars, p. 199, pi. Ixxxiv. fig. i 



Bonnier (/. c. p. 373) does not consider B. & W.'s species 

 to be that of Kroyer, because he holds that each Epicarid 

 has only one species as its host, a view which we consider 

 cannot be maintained ; as a parallel case we know that while 

 some parasitic Copepods are restricted to one species of fish, 

 there are others which attack several species. 



Bate and Westwood received the specimen figured by 

 them from Polperro, where it was taken by Laughrin ; but 

 the host is not given. 



E2 



