ITS AFFINITIES. 231 
poda, and perhaps also in the shortness of the 
peduncle of the ultimate pair of pleopoda. 
Only one specimen of this species is in the 
collection; and that was taken from a sponge 
dredged in about ten fathoms of water in Esqui- 
malt Harbour. It is of a brownish colour. 
AMPHITHOE PEREGRINA (Dana).—Esquimalt Harbour. 
Dana records this species as living amongst 
the roots of floating fucus, at sea, thirty miles 
south of Valparaiso. 
AMPHITHOE ORIENTALES (Dana).—Esquimalt Harbour. 
It is also recorded by Dana from Tongatabu, 
in the Pacific, along shores of coral in shallow 
water. 
AMPHITHOE FILICORNIS (Dana),—Esquimalt Harbour. 
It differs in no essential character from the 
specimen to which Dana has given the specific 
name, and which he obtained at Rio Janeiro. 
IDOTEA WOSSENESSKII (Branpt).—Esquimalt Harbour. 
Dana records it from San Francisco; it has 
also been taken at Atcha and Sitka Sounds by 
Wossenesskii, and at Puget’s Sound by Dr. 
Suckly. 
