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CRYPTOTHIRIA BALANI. 267 
ISOPODA. BOPYRIDA, 
NORMALIA, 






CRYPTOTHIRIA BALANI. 
Specific character.—Immature (2) Male.—Elongate-ovate, cephalon fur- 
nished beneath with two flat lobes, serrated on their posterior margins, mouth 
forming a conical process ; upper antenne very short, lower antenne nearly 
half the length of the animal, reflexed ; pereion with seven pairs of pereio- 
poda, first and second pairs with strong palms and hooked fingers, five pos- 
terior pairs slender and simple. Pleon with five pairs of branchial appen- 
dages, each composed of two lobes. 
Adult Female.—Forming a large inert seven-lobed mass, destitute of ex- 
serted antennx, jaws, legs, or branchial appendages. 
Length of the supposed male, about one line ; female, about one-quarter of 
an inch. 
Liriope balant. Spence Bartz, Brit. Assoc. Report, 1860, p. 225. 
Hemioniscus balant. BucuHo1z, in Siebold and Kolliker, Zeitschr. f. 
Wissensch. Zool. xvi. 3h. p. 303 (September, 
1866). 
Balanus balanoides, male. Goopstr, H. S., on the Sexes of the Cirri- 
peds, &c., Edin. New Phil. Journal, p. 88, v. 35 
(1848). Ann. d. Sci. Nat. 3 ser. Zool. t. 1. 
pl. 15. 
THE first notice we possess of this animal is that given 

1 Ss OO Set. 
