46 



B 



I, 



g 



OVAL. 

 *Vanuxemii. Lea. Clienu. 



*constrictus. Con. 

 *placitus. Lea. 

 *buxeus. Lea. 

 *concavus. Lea. 

 *sndus. Lea. 

 *radians. Lea. 

 *difficilis. Lea. 

 puniceus. JIald. 

 *Gouldii. Lea. 



*delodontus. Lam. Clienu. Hupe. 



Han. 

 Unio ladeolus. Lea. D'Orl. 



*piger. Lea. 

 *fabaceus. Lea. 

 *Uruguayensis. Lea. 

 *apprimus. Lea. 

 *Moussonianus. Lea. 

 luteus. Lea. Blan. 

 *Monroensis. Lea. 



OVAL. 



Fellmani. Desk. 

 *Binneyi. Lea. 

 *utriculus. Lea. 

 *lamellatus. 1 Lea. Clienu. Blan. 



curatus. Lea,. 

 *viridiradiatus. Lea. 

 *consobrinus. Lea. 



Lajardii. Blan. 

 *Menzieni. 2 Gray. 



Keraudreni. Eyd. Blan. 

 *Ferussacianus. Lea. 

 *Delesserti. Bourg. 



eucirrus. Bourg. 



Bagdadensis. Bourg. 



*Vescoi. Bourg. 



Unio Swerzenlackii. Bourg. 



versus. Lea. 

 Unio inornatus? Han. Reeve. 



*contradens. Lea. Han. 



Unio Javanus. Lea. Clienu. 

 Unio exilis.f Dunk. 

 Unio mutatus. Afouss. 



1 Blanford considers this a variety of marginalis, but they are certainly distinct. I have some from 

 Madras, and I doubt if Mr. B. has ever seen the species. 



2 This remarkably compressed species was given to me by Mr. McAndrews, of Liverpool, under this 

 name. I am not aware where Mr. Gray has described it. 



5 Inornatus being preoccupied by me, I change this to versus, not being able to call it after Mr. 

 Ilanley or Mr. Reeve, both names being preoccupied by me. 



