LYSIANASSA. 167 



Montagua pollexiana, Spence Bate. — Hand of second 

 jaw-foot furnished with a large thumb, which is formed by 

 a deep cleft in the palm. 



St. Ives (Mr. Barlee). 



Gen. 64. DANAIA, Spence Bate. 



First pair of jaw-feet simple ; last pair of false feet with 

 a single stylet. 



Named in compliment to Mr. Dana, the American na- 

 turalist, whose labours as a student of Crustacea are almost 

 incalculable. 



Danaia dubia, Spence Bate. — Coxse of the second, 

 third, and fourth pairs of legs denticulated at the margin. 



Mr. Bate has. not mentioned the locality of this species. 



Gen. 65. LYSIANASSA, Milne-Edwards. 



Upper antennae short, pyriform, furnished with a secon- 

 dary appendage. First jaw-foot simple, second long and 

 feeble. Telson simple. 



Lysianassa Cost^e, M. Edw. — This species, in which 



