44 PALAEONTOLOGY OF CALIFORNIA. 



In this shell there is a combination of characters which allies it to two of the 

 genera of the Murices. The nearly obsolete varices, and their small number, with 

 the closed, tubular canal, would place it in Muricidea, but the tooth on the lip, 

 still preserved on the varices, is the character on which Conrad founded Ceras- 

 toma, antedated, however, by Phyllonotus of Swainson, who used the numerous 

 varices as the leading character of his genus. 



TROPHON, Montf. 



T. squamulifer, Cpr. (in lit.) n. s. 



" T. satis turritS,, pallide rufofusca' ; anfr. nucl. ? norm, iv tabu- 

 latis, tumentioribus, suturis ad angulum 80° — 100° acute im- 

 pressis ; costis rad. vi — vii vix varicosis, angustis, ad angulum 

 posticum interdum spinosis, ad basim continuis; liris spiralibus 

 primum iii fenestratis dein creberrimis, asperis, squamulatis, in- 

 terstitiis angustis, plus minusve incisis, canali longiore, rectiore, 

 duabus trientibus aperturae aequante, vix apertS; apertura ovali, 

 labro incrassato, intus circ. v dentati; labio leevi, crassiore. 



" Long. .9, long. spir. .35, lat. .51, div. 66°. 



" Hab. Living; Catalina Isd. ; Post-Pliocene, Sta. Barbara. 



"With the general aspect of T. tenuisculpius, it is at once recognized by the 

 difference in sculpture. The fossil (unique) specimen is much finer than the im- 

 mature living one sent by Dr. Cooper. In this the varices are not spinous at the 

 angle, and the spiral sculpture is stronger. The difference, however, does not 

 appear to be specific." 



The above description and notes were sent me by Dr. Carpenter, in a letter, and 

 were based on a unique fossil specimen found by myself at Santa Barbara, and an 

 immature recent one from Catalina Island, found by Dr, Cooper. 



NEPTUNEA, Bolt. 



1ST. ALTISPIRA, n. S. 

 PI. 14, Fig. 2. 



Shell allied to N. decemcostata, Say, sp., but more slender, and 

 with a much higher spire ; whorls angular, the upper surface 



