TURBONILLA. 333 



T. FESTivA, Folin. PI. t6, fig. 30. 



Whitish, subdiaphanous, with a few, ver}-. distant longitudinal 



costa?, extending to the base, the very much wider interspaces 



spiral!}' striate; whorls 7, suture profound. Length, 2'5 mill. 



Panama. 

 T. TENUicuLA, Gould. PI. 76, fig. 31. 



Rather solid, shining, wax-3"ellow, a little dusk}^ below the 

 suture; whorls 10, flat, slight]}^ shouldered above, with about 

 20 straight, longitudinal ribs, the summits of which are cut by 

 numerous fine revolving striae, deeper in the interstices, which 

 extend over the base of the shell, the ribs terminating about the 

 periphery; revolving stride showing through the aperture. 



Length, 7 '5 mill. 



Southern California. 

 T. suBcuspiDATA, Carp. PI. 76, fig. 33. 



Differs from the preceding in being more distantly ribbed, 

 with broader interspaces, closer and deeper spiral sculpture, the 

 tops of the ribs elegantly' muricated with projecting, curved 

 lines between ; the suture more deeply impressed. 



Length, 6 mill. 



S. Diego, Gal. 



Perhaps onl}' a variety of the preceding species. 



T. TORQUATA, Gould. PI. 76, fig. 84, 32. 



Solid, white ; whorls 8, a little convex, with about 16 oblique, 

 flexuous longitudinal ribs, not extending to the base, periphery 

 subangulate, no spiral sculpture, base smooth. Length, 5 mill. 



Sta. Barbara, Cal. 



T. Vancouverensis, Baird, is a synonym. 



Yar. STYLiNA, Carp. (fig. 32), is a narrower form than the t3'pe ; 

 T. gracillima, Gabb, is a sj'nonym of it; T. Gabbiana, 

 Cooper, another. 



Unjigared Species. 



T. LoRDi, E. A. Smith. " Vancouver''s Island. 



T. Virgo, T. crebrifilata, T. ccelata, T. aurantia, T. choco- 

 LATA, T. TRiDENTATA, all of Carpenter. California. 



t. tenuilirata, t. muricata, t. gibbosa, t. prolongata, t. 

 C.B.Adamsi, T. gracillima, T. flavescens, T. terebralis, 

 T. unifasciata, Carpenter. Mazatlan. 



