238 BOPYRID®. 
ISOPODA. BOPYRID&. 
NORMALIA. 























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| PHRYXUS FUsTICAUDATUS= 22CQHQ (P% 
- TAAANR_ Pf awtKly’ o \ DAA 
“emale.—Oval, nearly symmetrical, the segments of the pereion Clearly 
indicated by lateral incisions; antennz, prominently seen beyond the fore 
margin of the head ; pereiopoda swollen, with indistinct segments terminated 
by a small claw with a minute dactylos. Pleon well defined, composed of 
four segments narrower than those of the pereion, and furnished at the 
sides with four elongate-clavate simple lobes ; terminal segment forming an 
elongate-oval mass. 
Length, one-tenth of an inch. 
THE small but increasing size of the few specimens of 
this species which we have hitherto seen, all of which are 
females, their symmetrical form, and the want of develop- 
ment of the scales in which the eggs are enveloped, lead us 
to suppose that the individuals before us are not yet arrived 
at the full growth. The curious lateral appendages at the 
sides of the tail are more strongly developed than in any 
other species we have yet seen, and their number agrees 
with that of the same organs in Ph. Hippolytes. 
