46 TORELLIA SEGUENZIA. 



Genus TORELLIA, Loven, 186?. 

 T. VESTITA, Jeffreys. PI. 8, fig. 66. 



Narrowly umbilicated, subglobose, rather thin, semitrans- 

 parent, chalky white, under a pale yellowish brown, velvety 

 epidermis ; whorls 5-6, tumid, rapidly enlarging, with numerous 

 fine spiral and less conspicuous longitudinal striae ; aperture 

 nearly entire, round. Diam. 15 mill. 



Norway, Shetland, Martha's Vineyard, etc. 



First described by Jeffreys as Eeclazia nperta. 



T. DELICATA, Phil. PI. 8, fig. 67. 



Narrowly umbilicated, very thin ; whorls 6, well-rounded, with 

 deep suture, very finely reticulated by longitudinal and spiral 

 striae. 



Messina, Sicily. 

 T. FIMBRTATA, Yerrill and Smith. PI. 8, fig. 68. 



Narrowly umbilicated, thin, fragile, suture deep ; whorls 5, 

 very convex, rapidly enlarging, with spiral, hairy carinae, about 

 ten of them on the last whorl, the interspaces finely, nodulously 

 reticulated by growth and spiral lines ; coluinella callously 

 thickened below. Diam. 17 mill. 



Off Martha" 1 }* Vineyard, Mass. 

 Yar. TIARELLA, Yerrill. 



Subsutural carina well developed and hairy, the other carinae 

 nearly obsolete. 



Genus SEGUEXZI A, Jeffreys, 1876. 

 S. MONOCINGULATA, Segucnza. PI. 8, figs. 71-73. 



Imperforate; whorls with revolving ribs, of which the la^thas 

 about four distant prominent ones, besides minor striae on the 

 base; white. Length, 6 mill. 



N. Atlantic, New England, Bay of Biscay, 



S. W. of Bermudas, Gulf of Mexico. 

 S.fwmosa, Jeffreys, is a synonym. 



Yar. LINEATA, Watson. Figs. 72, 73. 

 Same localities as the type. 



