Remarks on Classifications of 



The following extracts from the lists of species given in the 

 former work will show the views of H. & A. Adams ; the cor- 

 rections printed in Italic letters, are added by myself. 



Fam. HELICID^. 



SuBFAM. HELICIN"^. 



Gen. Helix L. 

 Subgen. Polymita Beck. 



Gen. Iflacrocyclis Beck. 

 Subgen. Vallonia Risso. 



varians Menke, 



annul ata Case 

 is exigua Stimp. 



costata Mull, 

 pulchella Mtill. 



Gen. Anchistomaf Klein. 



Ariadnse Pfr. 

 auriculatum Say. 

 a varum Say. 

 cereolum Muhlf. 

 clausum Raf. 



is inflectum Say, 

 convexum Raf. 



is monodon M. <& R. 

 dentiferum Binn. 

 Dorfeuillianum Lea. 

 Edgarianum Lea. 

 fall ax Say. 

 f rater num Say 



is var. of monodon M. <& R. 

 germanura Gould. 

 Hindsi Pfr. 

 hippocrepis Pfr. 

 hirsutum Say. 

 Hopetonense Shuttl. 



labyrinthieum Lea 



is labyrinthieum Say. 

 Lecontii Lea 



is loricatum Gould, 

 loricatum Gould, 

 major Binn. 



is var. of alholahris Say. 

 monodon M. & R. 

 obstrictum Say. 

 oppilatum Mor. 

 palliatum Say. 

 pustulatum Fer. 



is pus tula Fer. 

 Roemeri Pfr. 

 Rugeli Shuttl. 

 Sayi Binn. 

 spinosum Lea. 

 Texasianura Moric. 

 tridentatum Say. 



I " Shell orbiculately depressed, the umbilicus open or covered ; •vrhorls 5-Y, 

 the last dedexed at the aperture, often gibbous; aperture contracted, lunate, sub- 

 triangular ; peristome reflexed, usually dentate ; inner lip with a linguiform or 

 tooth-like callus, often uniting the margins." In the Synonymy of Anchistoma 

 H. <fe A, Adams have Stenotrema Raf., Ulostoma Alters, Triodopsis JRaf, Dseda- 

 locheila JBeck, Isogonostoma Fitz., etc. Gen. of Recent Moll., II. 205. 



