> SOL ART ELLA. 



plicata M. SARS, teste G. O. BARS. M. elegantissima (BEAN MS.) 

 WOOD, Crag. Moll, i, p. 134, t. 15, f. 1. LECHE, Hafs-Moll. 

 Kongl. sw. Akad. Handl. xvi, p. 43. M. polaris DANIELKSEN, in 

 Copenhagen Mus. (teste Leche). 



S. ALBULA Gould. PI. 66, figs. 14, 15. 



Shell rather solid, whitish, pearly, more or less distinctly tinted 

 with violaceous or rose color, depressed-conoidal ; spire short ; 

 whorls 6, appressed, the last large; base planulate; suture very 

 slightly impressed ; aperture subangulate ; outer lip obliquely arcuate, 

 inner nearly vertical ; umbilicus large and deep, funnel-shaped, 

 defined by a distinct basal ridge; surface sculptured with slightly 

 elevated unequal spiral lines, decussated by less conspicuous 

 longitudinal striae ; base nearly smooth, but with subobsolete spiral 

 lines around the umbilicus. Alt, 9, diam. 10 mill. (Sars.) 



Greenland; Norway; Unalaschka. 



Marg. albula GLD., Otia, p. 154. Machceroplax albula Gld. SAKS, 

 Moll. Reg. Arct. Norv., p. 138, t. 9, f. 3. 



S. PERAMABILIS Carpenter. PI. 67, figs. 59, 60, 61. 



Shell very thin, very elegantly sculptured, livid, spotted with 

 pale rufous-brown ; nuclear whorls 2, very tumid, smooth, apex 

 mammillated ; following whorls 4, tabulated, sutures nearly rect- 

 angular; upon the spire there are two or three carin3, and inter- 

 calated carinula?; the entire surface is most elegantly and densely 

 radiately costate, costa? very acute, subgranulose upon the caring, 

 nterstices on the first whorl fenestrated, posteriorly decussated ; basei 

 deeply rounded ; sculptured with about 5 lirulse, anteriorly granulose; 

 umbilicus large, closely ornamented with about 3 spiral distant lines, 

 and radiating costulations continued from the base. Aperture 

 rounded, indentated by the carinse, scarcely in contact parietally, 

 iridescent inside, nacreous ; operculum very thin, multispiral, with 

 about 10 elegantly radiately rugulose whorls. (Carpenter.) 



Alt. 8, diam. 8 mill. 



San Diego; Catalina Id., Cal., 30-120 fms. 

 / 

 Solariella peramabilis CARP., Proc. Cal. Acad. Sci. iii, p. 156 



(1864). 



Dr. Cooper's very lovely species of a very lovely group may 

 possibly prove to be a variety of the Japanese Minolia aspecta 

 A. Ad. inss. in Mus. Cuming; but, until more specimens from each 

 district have been compared, it is more prudent to keep them 



