378 Notices respecting New Booh. 



binet of Prof. Vanuxem. Cabinet of P. H. Nicklin. Cabinet of the 

 Academy of Natural Sciences. Diam. *8, length 1-3, breadth 2*2 

 inches. 



1 2. Unio Circulus. — Testa circulars, ventricosd, sub-cequilaterali ; 

 valvulis crassis ; natibus prominulis ; dentibus cardinalibus laterali- 

 busque magnis ; ligamento brevi crassoque ; margarita alba et iri- 

 descente. 



Hab. Ohio at Cincinnati. T. G. Lea. Monongahela at Pittsburg. 

 T. Bakewell. Tennessee at Nashville. Prof. Vanuxem. My cabinet. 

 Cabinet of T. G. Lea. Cabinet of Prof. Vanuxem. Cabinet of P. H. 

 Nicklin. Cabinet of Dr. Griffith. Cabinet of W. Hyde. Cabinet of 

 W. Mason. Cabinet of J. Phillips. Cabinet of the Academy of 

 Natural Sciences. Cabinet of Peak's Museum, &c. Unio rotundata? 

 Lamarck. Diam. 1, length 1*5, breadth 1*5 inch. 



13. Unio multi-radiatus. — Testa elliptica, incequilaterali, ventri- 

 cosd, multi-radiatd; valvulis tenuibus; natibus prominulis; dentibus 

 cardinalibus erectis, et in valvulis ambabus duplicibus; lateralibus la- 

 me llif or mibus et abruptis ,- margarita cceruleo-albd. 



Hab. Ohio. T. G. Lea. My cabinet. Cabinet of T. G. Lea. Ca- 

 binet of Prof. Vanuxem. Diam. *8, length 1*3, breadth 2 inches. 



14. Unio Occidens. — Testd sub-elliptica, incequilaterali, trans- 

 versa, ventricosd ; valvulis crassis ; natibus sub-undulatis, raro decorti- 

 catis ; ligamento sub-brevi crassoque ; dentibus elevatis ; margarita alba. 



Hab. Ohio. T. G. Lea. My cabinet. Cabinet of T. G. Lea. Ca- 

 binet of Prof. Vanuxem. Cabinet of P. H. Nicklin. Cabinet of the 

 Academy of Natural Sciences. Cabinet of Peak's Museum. Diam. 

 1-6, length 2*3, breadth 3'4 inches. 



15. Unio Securis. — Testd sub-triangulari, incequilaterali, per um- 

 bones valde complanatd ; valvulis crassis; natibus elevatis, recurvatis, 

 compressissimisque ; dente cardinali magno, laterali c;ci£0; ligamento 

 breviusculo, crassoque; margarita alba et iridescent?. 



Hab. Ohio. T. G. Lea. My cabinet. Cabinet of T. G. Lea. Ca- 

 binet of Prof. Vanuxem. Cabinet of the Academy of Natural Sciences. 

 Unio depressa of Rafinesque. Diam. *9, length 1-5, breadth 1*9 

 inch. 



16. Unio Iris. — Testa angusto-ellipticd, incequilaterali, sub-ventri- 

 cosd; valvulis tenuibus ; natibus prominulis ; dente cardinali in valvuld 

 sinistra, duplici, in dextrd sub-bifido, parvo, erecto ; dentibus lateralibus 

 longis tenuibusque; margarita sub-cceruleo-albd. 



Hab. Ohio. T. G. Lea. My cabinet. Cabinet of T. G. Lea. Ca- 

 binet of Prof. Vanuxem. Diam. -5, length -8, breadth 1*6 inch. 



17. Unio Zig-zag. — Testa ovatd, incequilaterali, ventricosd; val- 

 vulis sub-crassis; dentibus cardinalibus magnis, erectis ; lateralibus 

 curvatis ; natibus prominulis; radiis ex lineis angulatis compositis ; 

 ligamento brevi crassoque ; margarita alba. 



Hab. Ohio. T. G. Lea. My cabinet. Cabinet of T. G. Lea. Ca- 

 binet of Prof. Vanuxem. Cabinet of P. H. Nicklin. Cabinet of the 

 Academy of Natural Sciences. Cabinet of Peak's Museum. Diam. 

 •6, length *9, breadth 1*5 inch. 



18. Unio 



