324 TURBONILLA. 



both crossed hy numerous microscopic spiral stria?, ribs fading 

 out at tlie periphery of the last whorl. Length, 2 mill. 



Atlantic Ocean. 

 T. COMPRESSA, Jeffreys. PI. T5, fig. 88. 



Cylindrical, a little compressed in the middle of each whorl, 

 thick, semitransparent, glossy ; whorls 11, with about 25 longi- 

 tudinal ribs and subequal interspaces ; color white, a 3'oung 

 specimen having a broad, obscure chestnut-colored band. 



Length, 625 mill. Mediten-anean, Azores^ Cape Verd Is. 



T. PAUciSTRiATA, Jeffreys. PI. 75, fig. 90. 



Rather thick, semitransparent, lustrous ; whorls 9, flatly con- 

 vex, with about 20 straight, slight, irregular longitudinal ribs, 

 fading out on the body-whoij. Length, 6-8 mill. 



Mediterr^anean ; W. Coast of Africa ; 



Culehra, Danish West Indies. 

 Dr. Jeffreys was somewhat doubtful of the distinctness of this 

 shell from T. comiwessa. 



T. SEMicosTATA, Jeffreys. PI. 75, fig. 89. 



Kather thick, semitransparent, gloss}^ ; whorls 9, flattened in 

 the middle, with a few slight longitudinal ribs, sometimes cover- 

 ing the upper whorls onl}', but in most disposed irregularly over 

 the shell ; in one specimen the whole surface is microscopically 

 spirall}^ striated. Length, 3'75 mill. 



Cape Breton^ Gulf of Gascony. 



T. MACANDRE.E, H. Adams. PI. 74, flg. 59. 



Solid, whitish or light fulvous; whorls IG, slopingly flattened, 

 with numerous rounded ribs, fading at the peripherj^, and equal 

 smooth interspaces. Length, 18-24 mill. Vigo. 



Described by Mr. Adams as T. s2)eciosa, preoccupied. 



T. OBLiQUATA, Phil. PL 75, fig. 80. 



H3'aline ; whorls 9, convex, with about 14 oblique small ribs 

 and much wider, smooth interspaces. Length, 3 mill. 



Mediterranean Sea. 



Unfigured Species. 

 T. ACUTissiMA, Monts. Mediterranean. 



T. ROSEA, T. MuLLERi, T. Senegalensis, Maltzan. 



Ins. Gorce. W. Africa. 



