OLEACINA. 39 



rowly spirally striate ; light orange-yellow; whorls 6, suture 

 crenulately margined. Length, 40 mill. 



Vicinity of Lake Nicaragua. 

 Strebel unites this with the preceding species. 



O. YANUXEMTT, Lea. PL 7, fig. 99. 



Thin, pellucid, decussated by longitudinal and spiral striae to 

 about the middle of the body -whorl ; orange-rose color ; whorls 



6, suture crenulated. Length, 53 mill. 



Mexico, Texas. 

 O. SACCATA, Pfeiffer. PL 9, fig. 22. 



Rather solid, plicately striate, decussated by very minute 

 spiral lines, sculpture smoother below, on the body-whorl, the 

 base somewhat distended ; reddish corneous ; whorls 6^, suture 

 closely crenulated, thread-margined. Length, 56 mill. 



Ecuador. 

 O. AMCENA, Martens. PL 7, fig. 100. 



Closely striulate, decussated by fine undulating spiral lines, 

 shining, rosy orange ; whorls 7, suture crenate. Length, 45 mill. 



Mexico. 



Var. ft. PLTCULOSA. Larger, more solid, with obsoletely impressed 

 longitudinal plications, the spiral lines obsoletely whitish cor- 

 neous. 



Strebel makes this species a variety of 0. Audebardi. 



0. INSIGNIS, Pfeiffer. PL 7, fig. 1. 



Somewhat solid, rather distantly distinctly plicate, the inter- 

 stices finely decussately granulated ; rose-red, the plications 

 lighter; whorls 7, suture margined by an impressed line, and 

 regularly denticulate. Length, 48 mill. 



Jalisco, Mexico. 



0. Liebmanni, form D ? of Strebel. 



0. LONGULA, Crosse and Fischer. PL 9, fig. 20. 



Rather thin, obsolete!}' plicately striate, decussated by finer 

 spiral striae ; orange-straw color, white within ; whorls 7, suture 

 elegantly crenulated, not margined. Length, 45 mill. 



E. San Juan, Mexico. 

 O. RADULA, Strebel. PL 8, fig. 15. 



Longitudinally closely plicate, denticulating the suture ; whorls 



7, color ? (only specimen denuded of epidermis). Length, 40 mill. 



Tehuantepec, Mexico. 



