32 OLEACINA. 



0. ORNATA, Pfeiffer. PI. 5, fig. 57. 



Crowded with regular longitudinal costulae, pellucid, orange- 

 red ; whorls 8, suture margined by a crenulated sulcus. 



Length, 72 mill. 



New Granada. 



0, costulata, Pfeiffer, is a synonym. 



O. TRUNCATA, Gmelin. PI. 4, fig. 56 ; PL 5, figs. 58, 60. 



Shell solid, with crowded longitudinal plicate striae and occa- 

 sional sulci ; whorls 6, suture subcrenulately margined ; ash-rose 

 or rose-yellow. Length, 65 mill. 



So. Carolina to Florida. 



This is 0. striata, Desh., and Polyphemus glans, Say. 



0. PARALLELA, W. G. Bmney. PI. 5, fig. 59, 



Shell solid, shining, rose-yellow or whitish, eyiindricsUy 

 elevated, the sides compressed, subparallel; longitudinally 

 plicate-striate. Length, 55 mill. 



Louisiana, Texas. 



Is possibly only a variety of the last species. 



O. BULLATA, Gould. PI. 6, fig. 75. 



Thin, pellucid, shining, reddish corneous to whitish, closely 

 longitudinally plicate-striate; whorls 5, the last inflated, suture 

 undulating, submargined with white. Length, 38 mill. 



Louisiana. 



Possibly a form of 0. truncata, Gmel. 



0. STRIATA, Mu'ller. PI. 5, fig. 64. 



Solid, longitudinally finely striate-plicate ; whorls 7-8, suture 

 margined, crenulated yellowish white, or light pink-yellow, 

 inconspicuously narrowly striped with reddish brown. 



Length, 56 mill. 



Bolivia, Cayenne, N. Granada. 



The synon3^ms are Helix ienera, Gmel., H. incumbens, Dillw., 

 0. Mulleri, Gray, arid 0. dactylus, Brod. 



O. LTNEATA, Strebel. PL 8, fig. 3. 



Yellowish flesh-color, with margined suture ; the longitudinal 

 plicate striae crossed by fine spiral lines. Length, 45-49 mill. 



Mexico. 



Somewhat related to the preceding species in coloring, but 

 differs in size and sculpture. 



