North American nelicidce. GY 



Helix avara Chemn. cd. II., Helix 370 (ex parte), t. 05, fig. 1-2. 

 " " Ffr. Mon. L, No. 1087 (ex parte), 1848 



" aurkulata Binneij, Terr. Moll. II. (ex parte,), fig. 1, 



(right hand), 2. 1851 



" avara Reeve Conch. Icon. No. 720, pi. 121. 1852 



" avriculata'' " " " 700," 119. 1852 



T. rimato-perforata, snperne depressa, costulato-striata, suhtus in- 

 flato-convexa, Iteviuscula ; alba vol fasco-cornea, tenui, spira brevis- 

 sima ; anfr. 5^-G, planiusculis, ultinno ad aperturara deflexo, breviter 

 disjuncto, constricto, vix scrobiculato ; apertura subhorizontali, auri- 

 formi, coarctata ; perist. acnto, continuo, marginibus plica linguiformi, 

 brevi, intrante junctis ; dextro lamella obtusa, submarginali, basali tuber- 

 culo dentiformi, obliquo et siniioso, instruct©. 



^ Shell perforate, above depressed, with rib-like stride, beneath 

 inflated, convex, almost smooth, and with microscopic spiral 

 lines ; white, or brown horn-color, thin ; spire very short ; 

 whorls ^ to 6, rather flat, the last deflected, and shortly turned 

 outwards from the preceding whorl, constricted, scarcely scro- 

 biculate ; aperture sub-horizontal, ear -shaped, contracted ; peri- 

 stome acute, continuous, the margins joined by a short linguiform 

 fold, entering within the aperture ; the right margin with an 

 obtuse submarginal lamella, and the base with an oblique sinu- 

 ous, tooth-like fold. 



Diam. maj. 11^; min. 10. Alt. 6 mill. 



Uahitat. — The largest specimen is from Ware Co., Ga., Pos- 

 tell ! The smaller is one of two specimens found in a rotten 

 oak log, in the neighborhood of Savannah, Ga., by my young 

 friend, John Elliott, a son of Bishop Elliott ; in these the stri[e 

 at the base are more prominent than in any other specimens. 

 The species seems to have a wider distribution than the preced- 

 ing. I have specimens from Washington Co., Texas (W. G. 

 Binney) ; from Alabama (Prof. A. Winchell and J". TT. Redfield) 



