CRYPTOTHIRIA B \LANT. 



ISOPODA. 



NORMALIA . 



267 



BOPYRID^E. 



CRYPTOTHIRIA BALANI. 



Specific character. Immature (?) Male. Elongate-ovate, cephalon fur- 

 nished beneath with two flat lobes, serrated on their posterior margins, mouth 

 forming a conical process ; upper antennas very short, lower antennae 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 antennae, jaws, legs, or branchial appendages. 



Length of the supposed male, about one line ; female, about one-quarter of 

 an inch. 



Liriope balani. SPENCE BATE, Brit. Assoc. Report, 1860, p. 225. 



Hcmioniscus balani. BUCHHOLZ, in Siebold and Kolliker, Zeitschr. f. 



Wissensch. Zool. xvi. 3 h. p. 303 (September, 



1866). 

 Balanus balanoides, male. GOODSIK, H. S., on the Sexes of the Cirri - 



p.eds, &c., Edin. New Phil. Journal, p. 88, v. 35 



(1843). Ann. d. Sci. Nat. 3 ser. Zool. t. 1. 



pi. 15 c. 



THE first notice we possess of this animal is that given 



