ODOSTOMIA. 355 



0. TURBONiLLOiDES, Brusiiia. PI. 78, fig. 24. 



Shell smaller than the preceding species, the whorls more 

 flattened, ribs straighter, equaling the interstices, basal spiral 

 striffi stronger. Length, 1-6 #ill. 



llediterranean. 



0. BREVicuLA, Monts., 0. AMOENA, Monts. (0. venusta^ Mts., a 

 synon3'ra), 0. Nardoi, Brusina (all unfigured). 



Mediten^dn ean . 



Section Odostomiella, Bucq., Dautz. Dollf. 1883. 



0. DOLiOLUM, Phil. PI. 78, figs. 27, 28, 30. 



Solid, with smooth, longitudinal, rounded ribs without 

 intervals; whorls 4, besides the nucleus, convex, with well im- 

 pi'essed suture ; yellowish, with two narrow spiral brown lines, 

 three on the body-whorl, tooth moderate. Length, 2*2 mill. 



Mediterranean. 

 The sj-nonyms are 0. regularis, Folin ; 0. tricincta^ Jefl['reys 

 (fig. 30); 0. hicincta, Tiberi; 0. unicincta, B. D. D., the last re- 

 ferring to variations in the banding; and 0. cylindrica, B. D. D. 

 (fig. 28), and elongata, Monts., both described as more narrowly 

 elongated forms. 



Section Elodla, Folin, 1870. 

 0. HoRTENSiiE, Nansouty. Desc. inaccessible to me. 



Section Miralda, A. Ad., 1863. 



0. excavata, Phil. PI. 78, fig. 31. 



Solid, opaque, rather glossy, with prominent spiral ridges, of 

 which there are three on the main part of the body-whorl, and 

 two slighter ones at the base, and two ridges on the spire whorls, 

 crossed obliquely by sharp longitudinal ribs, extending to the 

 base, the intersections with the spiral sculpture appearing nodu- 

 lous, white ; whorls 6, suture broad and very deep ; tooth small 

 and remote; umbilicus narrow but distinct. Length, 3'75 mill. 



Eurojje. 



The S3'nonyms are 0. trinodosa, Ea3nieval ; 0. turrita^ Metcalfe; 

 0. Deshayesianaj Recluz ; 0. Harveyi, Thompson. 



