SI 2 LIMEA. 



The radiating costae in this species are very acute, interrupted 

 by frequent, conspicuous growth - lines which produce minute 

 granulations ; the growth-lines are curved in the hollows between 

 the costae. The shell is moi'e ventricose than in L. hullata, it 

 is ovate, and instead of having approximately parallel sides they 

 are arched ; umbones acute ; area broad ; ligament pit shallow, 

 broad, boldly transversely striated. 



Dimensions — Height 24 mm.; length 15 mm. 



Form, and Loo. — Eocene : Muddy Creek, Victoria. 



L. 4821. Example of both valves of the neanic stage of growth. 



Presented hy John Bennant, Esq. 



L. 6585. Two specimens of the adult. Purchased. 



L. 9844. A series illustrating stages of growth, from the 

 brephic to the ephebic. Purchased. 



Lima, sp. 



L. 10496. Example of a new species, 8|- inches in height and 

 at least 8 inches in length. Judging from Hutton's description 

 of L. Icevigata, it appears to be allied to tliat species, as the shell 

 is thin, equivalve, and compressed, but although it is smooth it 

 is scored by very numerous, irregular undulating striae, a feature 

 not mentioned in Hutton's brief description alluded to. The 

 auriculae are broken off from the specimen, which is otherwise 

 too imperfect to figure and describe in detail. Erom the Miocene, 

 of Port Hills, Nelson, New Zealand. Sir James Hector Coll. 



Genus LIMEA, Bronn. 



[Ital. Tert. 1831, p. 115.] 

 Limoarca, Miinster, Leonh. and Bronn, Jahrb. 1832, p. 421. 



The principal distinguishing features of this genus are the 

 transverse ridges (as in Limopsis and Pectunculus) on the inside of 

 the auricles, and the small hinge area ; impression of the adductor 

 muscle of the valves subcentral. 



Ti/pe. — Ostrea strigilata, Brocchi. 



