406 MAZATLAN UNIVALVES 



operculum is externally deeply concave ; inside simple. The 

 largest specimen is only 1 * 1 long. One with elevated spire 

 measures long. 1*02, long. spir. '14, lat. '63, div. 128. 



A flattened sp. 1*04, '06, '78, 170. 



Sab. Galapagos, Cuming. Taboga, 2 sp. C. B. Adams. 

 Mazatlan ; extremely rare ; L'pool Col. 



Tablet 1944 contains 2 sp. normal, and an operculum. 1945, 

 2 sp, distorted. 



482. CONUS ? SCALAEIS, Val. 



See. Obs. JFTumb. fy Bonpl. vol. ii. p. 338. Kien. Icon. Conch. 



p. 158, no. 133, pi. 88, 5. 



Tablet 1946 contains a rubbed small specimen, '54 in length, 

 which perhaps belongs to this species. 

 Sab. Acapulco, Valenciennes. ? Mazatlan ; 1 dead sp. IS pool 



Col. 



483. ?? CONUS , sp. ind. 



Tablet 1947 contains the spiral part of a thin shell with 4 

 smooth rounded nuclear whirls, rather projecting, and 4 flat- 

 tened 'projecting normal whirls, spotted with purple brown ; 

 smooth, with raised, somewhat nodose bands on each side of 

 the suture. It may possibly belong to Pyrella, Swains. 

 OTudicla (Bolt.), HSf A. Ad. vol. i. p. 151.] 



Tablet 1948 contains the distorted operculum of a Conus, of 

 concentric elements, with one end elongated. 



SUBOBDER PROBOSCIDIFEEA. 

 FAMILY SOLABIADJE. * 



The shells of this family have the nuclear whirls slanting 

 and sunken, as pointed out by Woodward. The shape agrees 

 in Solarium, Torinia and Bifrontia. In Pbilippia, Gray, the 

 nucleus has the same character, but is larger in proportion, 

 more globular, with one conspicuous whirl. A similar differ- 

 ence obtains between Chemnitzia and Odostomia in Pyramidel- 



