160 AURICULACEA, 



striato, labro pone limbum fuscum albo-calloso, regalariter 6-10 

 plicato. Georgia. 



He quotes in the synonymy of this variety Mel. borealis 

 Conr. of Cuming's collection. Conrad's species is much 

 more likely to be Alexia myosotis than any variety of Mel- 

 bide ntatus. 



Potiez and Michaud describe and figure quite a distinct 

 shell under the name of Auricula bidens Say. 



Stimpson gives precedence to Deshayes's name corneus. 

 Say's name has eight years priority, and is not preoccupied 

 in the genus Melampus. It was while treated as an Auri- 

 cula that any question existed in regard to its specific 

 name. 



PI. 75, fig. 23, represents a specimen not furnished with 

 laminae within the peristome. 



The date of publication of this species is erroneously 

 quoted by Pfeiffer as 1821. The title-page of the first 

 part of vol. ii. of the Academy Proceedings bears this date. 

 The description was actually published at the date given 

 by me. 



AURICULA JAUMEI. A. testa conoidea, laevi, corneo-lutescente, longi- 

 tudinaliter substriata ; spira brevi, obtusa, ssepe erosa; apertura elongata, 

 angustissima ; columella basi alba, biplicata, labro tenui, acuto, intus 

 dentato atque sulcato. 



Petite coquille mince, presque lisse, conoide, d'une couleur jaunatre 

 cornee ; chez les jeunes individus on voit des fascies brunes, transversales 

 et reguliercment disposees. Sa spire est courte, obtuse, souvent erodee^ 

 comme chez la plupart des coquilles fluviatiles ; 1'ouverture est etroite, 

 allongee ; la columelle offre, vers sa base, deux dents blanches, egales et 

 legerement obliques; le bord droit, simple et tranchant, presente, a 

 I'interieur, une rangee de plis saillans, inegaux, separes par des sillons 

 d'autant plus rnarques qu'ils sont plus inferieurs. Cette Auricule appar- 

 tient a la section des Conovules ; elle est voisine de V Auricula cornea de 

 Deshayes, dont elle differe neanmoins par son bord droit constamment 

 dente et sillone. Elle a 3 a 4 lignes de longeur. 



Elle habite les marais, aux environs de Hampton en Virginie, ou elle 



