CIROLANA SPINIPES. 299 
ISOPODA., GID. 
NORMALIA. 

CIROLANA SPINIPES. 
Specific character. Cephalon wider than long, with a curved incised line 
on each side parallel with the lateral margin, Pereion very convex, smooth. 
Pereiopoda strong and broad, armed with numerous spines; inner ramus 
of the posterior pair of pleopoda (uropoda) larger than the outer, elongate- 
ovate, acute at the tip, basal joint produced into a short subconical point. 
Length, nearly one inch. 
Cirolana hirtipes? Mine Epwarpds, Crust. iii. p. 236, t. 31, f. 25. 
Cuvier, Régne Animal (Edit. Crochard), Crust. 
t. 67, f. 62 W. THompson, in Ann. Nat. Hist. 
xx, p. 246. Wuirs, B. M. Cat. Brit. Crust. 
p. 79. Pop. Hist. Brit. Crust. p. 850. 
Tus species is at once distinguished from the typical 
C. Cranchii—the only one hitherto described as a native 
of Northern climates—by its robust form, convex glossy 
body, thick spinose legs, and by the shortness of the 
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