30 Remarks on Certain Species of 



Helix aTara, Say. 



Synoistymy. 



Pf'^ygyra avara Say Nich. Enc. Am, ed. 1816 



" JI. Acad. N. S. Phil. I. p. 277. 1818 



Helix " Fer. Prod., No. 97. 1822 



" " Pfr. var, 13. minor, Mon. Hel. I., No. 1087 



(ex parte). 1848 



" " ^esh. in Fer. Hist., p. 78, pi. 50, fig. 2. 



" " Chemn. ed. H., Helix, p. 370 (ex parte), excl. 



%. 

 " " ^^'eyeConch.Icon. (ex parte), No. 720, excl. fig. 1852 



Polygyra " TF. G^. ^mjiey reprint of Say, p. 11. 1856 



" Notes on Amer. Land Shells 



in Proc. Acad. Phila., p. 200. 1858 



Say's description is as follows : — 



P. AVARA. — " Shell covered with numerous short, robust hairs ; spire 

 convex; whorls four, regularly rounded, with hardly elevated lines 

 forming grooves, which are much more conspicuous near the mouth ; 

 mouth subreniform, two projecting, obtuse teeth on the outer lip within, 

 separated by a deep sinus ; outer lip elevated, equal, describing two- 

 thirds of a circle ; pillar lip elevated, broadly but not profoundly emar- 

 ginate, concave beneath, and connected to the inner side by an elongated, 

 lamelliform tooth, which is placed obliquely on the penultimate whorl 

 near the middle of the mouth ; lips almost equally prominent, continued ; 

 umbilicus moderate, not exhibiting the volutions, no groove on the ulti- 

 mate whorl within it. Breadth quarter of an inch. Inhabits Florida. 

 Cabinet of the Academy. Animal longer than the breadth of the shell, 

 acute behind, above granulated and blackish, beneath, and each side, 

 white. 



" This we found in the orange groves of Mr. Fatio, on the River St, 

 John, East Florida; it is usually covered with a black, earthy coat, 



