•SOLARIELLA. 315 



Shell broadly unibilieated, wliitish-pearly, thin, coiioidal ; whorls 

 Os, convex, separated by gradate suture, ornamented with oblique, 

 dense regular radiating costella?, and two spiral lira? on the lower 

 part ; last whorl ventricose, radiately costellate above, with three 

 acute elevated median spiral cinguli, beneath with obsolete con- 

 centric strife; umbilicus wide, carinated at the perij)hery, plicate, 

 denticulate; aperture subcircular. 



Alt. 5, diam 5 mill. (Fischer.) 



Gulf of Gascogue, 896-1226 meters. 



S. LAMELLOSA Vcrrill & Smith. PI. 57, fig 14. 



Shell small, fragile, conical, canaliculate, with a wide umbilicus. 

 Whorls five, angulated and carinated below the middle, swollen just 

 below the suture, which lies in a deep channel ; they are crossed, 

 above the peripheral carina, by numerous elevated, thin, oblique 

 ribs, which rise into lamellae near the suture, where they join the 

 carina forming small nodules; between the ribs are fine parallel 

 lines of growth and sometimes a few fine revolving lines. Below^ 

 the periphery, in line with the posterior edge of the lij), there is a 

 smaller, plain, angular rib, and around the umbilicus there is a 

 strong nodulose rib. Between these ribs, the base is covered with 

 fine revolving lines. Within the umbilicus are radiating raised 

 lines which cross two or three small revolving ribs. Aperture 

 rounded, with angles corresponding to the ril)s. 



Alt. 8, diam. 3 mill. (Verrill.) 



Off Martha's Vineyard, in 115 fms. ; Gulf of Mexico 287-2805 fms. 



Margarita lamellosa Verrill and Smith, Am. Journ. Sci., 3d- 

 series, vol. 20, p. 397 ; Trans. Conn. Acad., p. 530, t. 57, f. 38. — 

 Solariella lavxellosa V. & S., Dall, 'Blake' Gastrop., p. '379. 



Constantly smaller and differentlv wrinkled from S. amabilis. 

 (Dall.) 



S. .EGLEES Watson. PI. 66, figs. 18, 19. 



Shell broadly conical, high, with a very large uujbilicus, orna- 

 mented with rows of tubercles, carinated. Sculpture : spirals — 

 there is a rov; of small round pointed tubercles a little below the 

 suture, the carina is doul)le, formed by two rather remote tubercled 

 threads, the lower of which runs to the outer lip. Below this one is 

 a broadish furrow and slightly ^beaded thread, which toward the 

 mouth projects so as to become a third carina. The center of the 

 base has another slightlv beaded thread ; and another formed of 



