CBirsTACEA. 
121 
Occasionally taken all round our coast. A colony of young 
Einimals was taken, attaoliing themselves to the spines of 
Echinus splusrus, off Plymouth. The young of these animals for 
some time cling to the parent, hanging mostly about the antennoe. 
IDOTEIBJS. 
Genus, Idotea. — Fah'icius. 
Body long and narrow, legs subequal ; posterior portion of the 
tiody united into one segment, having no tail appendages j)08ter- 
iorly projecting. 
Idotea tricuspidaxa. — Desmarest, Cons. Crust., p. 289. Bate 
and Westwood, p. 381. 
AU along the coast. Among the largest specimens that we 
liave seen — one inch and a quarter long — were some taken off the 
Hudman. 
Idote.a pelagioa. — Leach, Lin. Trans., xi, p. 365. Bate and 
Westwood, p. 384. 
All round our coast, amongst weed. In Cornwall it has been 
taken near the Eddystone. 
Idotea emargin.^ta. — Falricius, Fnt. Syst. ii, p. 508. Bate and 
West-wood, p 387. 
Common among weeds all rouird the coasts of Europe. On the 
coast of Cornwall it was found among trawl refuse, and in the 
stomach of fish. 
Idotea linearis. — Pennant, Brit. Zool. (1777), iv, 118, f. 2. 
Bate and Westwood, 388. 
This species is not uncommon on many parts of the hritish 
Coast. We have dredged it near Plymouth, where it is not un- 
common. I received it from Ealmouth. It generally assumes 
tile colour of the weed on which it feeds. 
Idotea parallella. — Costa, d’ Regno d’ Napoli Crust, pi. xi, fig. 2. 
— Bate and West-wood, p. 391. 
This rather rare species has been taken at Ealmouth and at 
I'olperro. It bears a close resemblance to Gleantis linearis, of 
liana, which was taken from the stomach of a fish in Eio Negro, 
Ilorth Patagonia. 
IDOTEA ACUMINATA — Leach, Edin. Enoy., mi, 438. — Bate and 
West-wood, 394. 
