DIFFERS FROM P. BELLIANUS. 277 
another very considerably, and are furnished 
with short, sharp, and slightly-curved dactyli. 
The fifth pair of pereiopoda are rudimentary ap- 
pendages; they consist of but five joints, the last 
of which terminates in a blunt extremity, that is 
furnished with a considerable brush of hair, and 
is probably used for the purpose of cleansing the 
branchial appendages. 
The pleopoda are present in the female, with 
the exception of the first pair (which are small), 
only upon the left side of the pleon, as exempli- 
fied in our specimen. 
This species differs from White’s P. bellianus 
in having a horizontal bifurcate rostrum to the 
carapace, being more distinctly tuberculated, and 
in the pereiopoda being more strongly spinated. 
This handsome species is of a yellow colour, 
picked out with purpie between the tubercles. 
It was dredged in Esquimalt Harbour, in ten 
fathoms of water. 
ECHIDNOCERUS CIBARIUS (Wauire).— Victoria and Esqui- 
malt Harbour. 
PORCELLANA EDWARDSII  (Desavsvre).—Esquimalt 
Harbour. M. Verreaux obtained it at Magellan. 
PORCELLANA EUPICOLA (Srnrpson).—Esquimalt Harbour. 
Mr. Stimpson says that the members of this 
remarkable genus are the largest crabs known: 
