SOLARIELLA. 321 



the ribs ; one or two additional ones often appear in the umbilical 

 opening, which is funnel-shaped and moderately large, but often 

 partially obstructed by the reflexed edge of the inner lip. The inter- 

 spaces between all the ribs are covered with close, slightly raised lines 

 of growth, and usually with traces of a thin epidermis. Aperture 

 somewhat quadrangular, large, lip thin. Animal with long tentacles 

 and large black eyes ; four large lateral cirri on each side, with a 

 group of four or five small intermediate ones ; snout with a broad, 

 bilobed, crescent-shaped expansion in front. Odontophore without 

 a large lateral tooth between the inner and outer series, otherwise 

 much like typical Margarita. Alt. 14, diarn. 15 mill. ( Verrill.) 



Off Martha's Vineyard, 65 to 192 fms. ; off Newport, R. I., 85-325 

 fms.; of Grenada, 416 fms.; Bay of Biscay ; between Hebrides and 

 Faroe Is.; Mediterranean; St. Thomas, W. L; Fossil and Pliocene of 

 Italy and Sicily. 



Trochus ottoi PHILIPPI, Enurn. Moll. Sicilian, ii, p. 227, t. 28 f 

 9, 1844. JEFFREYS, P. Z. S. 1883, p. 98. Solariella ottoi Phil ' 

 DALL, Blake Gasterop., Bull. M. C. Z. xviii, p. 381. -Margarita 

 regahs VERRILL and SMITH, Amer. Journ. Sci. 1880, p. 397 ; Trans. 

 Conn. Acad. v, p. 530, t. 57, f. 37 : vi, p. 254, t. 29, f. 14. 



The description and figures pertain to this species as dredged 

 living, and described by Verrill and Smith as M. regalis. 



S. VAILLANTI Fischer. Unfigured. 



Shell umbilicate, conic ; whorls 7, planulate, the first costellate, 

 the rest ornamented with acute tubercles arranged in two spiral 

 cinguli ; last whorl bicingulate at the periphery, above provided with 

 a beaded sutural cingulus, beneath sculptured with 5 concentric lira? 



Alt. 7, diam. 8 mill. (Fischer.) 



Portugal, 1224 meters. 



Trochus vaillanti FISCHER, Journ. de Conchyl. ] 882, p. 50. 

 Said by Jeffreys to be a synonym of S. ottoi Phil. 



S. LUSITANICA Fischer. Unfigured. 



Shell umbilicate, orbicular-conic ; whorls 7, regularly increasing 

 spirally delicately cingulate, decussated by very minute arcuate 

 costelbe, with an acute prominent median carina; last whorl 

 bicarinate, a little convex beneath, sculptured with concentric lines 

 vanishing in the middle ; umbilicus funnel-shaped, acutely augulate 



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