2 8 



Cl. V. N 0S 5g et 60. 



torulosus, Raf. 



reflexus, Raf. 

 corn utu s , Barn. 

 11 pachostea. Raf. (33). (triangu- 

 taris selon Conrad). 

 CooperianuSy Lea. . 

 tuberculatua , Raf. 

 verrucosus , Barn. 

 verrucosus purpureus, Hildr, 

 tuberculosa , Valenc. 

 verrucosus, Val. 



verrucosus , var. Barn. 

 verrucosus albus, Hildr. 

 bullatus , Rof. 

 L plumbeus, JVob.(3^). 



Chaîna plumbea , Chemn. 

 U. nodulosus , Wood. 

 pustulosus , Lea. 



{bullatus, Say, Conrad, 

 nodulatus, Raf. 



pustulatus, Lea. 

 Stegarius, Raf. 



irrofatus, Lea. 

 retusa, Lam. 



torsus , Baf. 

 subrotundus, -/?#/". 

 rolunda , Wood. 

 Circulus , Lea. 

 orbiculatus , Hildr. 



* pusilla, Baf. (selon Conrad). 



* striata , Baf. (id.) 

 lœvigatus , iîfl/". 

 castaneus, £ea. 



(lœuigatus? selon Say). 

 politus , iS'tfj'. (35). 



subrotundus , Léa. (persona- 



tus , selon Conrad), 

 personatus , tStfj'. 

 Cyclips , /?«/• 



abruplus , Say. 



Calendis , Bai. (sel. Conrad.) 

 obliquatus , i?«f. (36). 



monstr. U. tiaysianus, Lea. 



«) Z7. sulcatus, Lea. 



monstr. £7. ridibundus, Say. 

 olivarius , /îtff., Conrad (37). 



ellipsis , Lea. (triangularis , 



Baf., sel. Say.) 

 triangularis , /tay. (38). 

 cicatricosus , tVay . 



( CyphiaRsî. , selon Conrad . ) 



varicosus , Lea. (id.) 

 obliqua , Lam. 



obovalis, Baf. 



ebenus , Lam. 



7îfr« obliqua, Wood ? 

 lineolatus, jRa/'. 



depressus , Baf. 



Securis , Lea. 

 interruptus, i?«/". 



brewidens , Lea. 

 nexus, *5Vy. 



arcœfornùs , Lea. 

 undatus, Barn. 



trigonus , Lea. 

 decisus, Zea. 



(Scalenius? var. selon Say.) 

 cuneatus, iîa/'. 



(Scalenius y selon Conrad») 



palulus , Lea, 



(Scalenius , selon Conrad.) 



* lateralis, /fa/". 



(triangularis, selon Conrad.) 

 crassus, var. c. Barn. 



* sintoxia , /fa/*. 



(triangularis , selon Conrad.) 

 mytiloides, Tîtf/*. 



(triangularis , selon Conrad.) 



caridiacea , Say of Gue'rin. 



pyramidatus , Lea. 



(triangularis, selon Conrad.) 



rubra , Baf. 



(triangularis , selon Conrad.) 

 Clava, Lam. (39). 



Scalenia , Baf. 



modioliformis , Say. 



* retusus , /ta/"., Conrad. 



* stapes, /lea. Conrad. 



(retusus ? Say.) 



* flexuosus, Raf, Conrad. 



* pileus , Zea , Conrad. 



(flexuosus , Say ? ) 



* acutissimus, Zea. 



* Vélum, iSW. 



* elliptica , /ut/". 



* zonalis, id. 



11 montanus, id. 



(Contin. of a Monogr. 



* rimosus, id. id. 



* fulvus, id. id. 



* roseus, id. (Monogr.) 



