240 BULLETIN OF THE 



Genus TRIVIA Gray. 



Trivia pediculus Linne. 



This species was not obtained by the Blake, but ranges from St. Augustine 

 southward to and among the Antilles, varying greatly in size and brilliancy 

 of coloration. It is fossil in the pliocene clays of Costa Rica and the Caloosa- 

 hatchie pliocene of South Florida. T. lahiusa Gaskoin and T. cimex H. Owen 

 are synonyms. 



Trivia suffusa Gray. 

 Trivia suffusa Gray, Roberts in Tryon, Man., p. 201, pi. xxi. figs. 1, 2, 100, 1885. 



Habitat. Off Havana in 80 fms. (dead), Sigsbee. Cedar Keys, Florida, 

 living on the reefs in 1-3 fms., and southward to and among the Antilles at 

 moderate depths. Fossil in the Caloosahatchie pliocene. 



This species is sometimes deep rose with blackish mottlings, varying from 

 rosy or madder brown without black markings to nearly totally blackish 

 brown. On the mainland it has been received from Vera Cruz and the coast 

 of Yucatan. T. armandina Duclos is synonymous according to Roberts, and 

 the dark variety mentioned above is on the same authority the same as 

 T. pullata H. Owen. 



Trivia subrostrata Gray. 



Trivia subrostrata Gray, Roberts, Bull. M. C. Z., IX. p. 137, 1881. Tryon, Man., 

 VII. p. 203, pi. xxii. figs. 38, 39, 1885. 



Habitat. Sigsbee, off Havana, 80 and 175 fms. Station 12, 177 fms.; Sta- 

 tion 2, 805 fms. (dead). Southeastward to Barbados, living at moderate depths. 



Trivia nivea Gray. 



Trivia oryza Roberts, Bull. M. C. Z., IX. p. 137, 1881, non Lam. 



Trivia nivea Gray, Roberts, Tryon, Man., VII. p. 199, pi. xxi. figs. 80, 81, 1885. 



Habitat. Station 2, in 805 fms. Station 272, at Barbados, in 76 fms., 

 dead. South Florida reefs, Greegor, living. 



Trivia candidula Gaskoin. 



Trivia candidula Gaskoin, Roberts, Bull. M. C. Z., IX. p. 137, 1881. Tryon, Man., 

 VII. p. 203, pi. xxii. figs. 33, 34, 1885. 



Habitat. Yucatan Strait, 640 fms.; Station 21, 287 fms.; Barbados, 100 

 fms.; Sigsbee, off Havana, 119 fms.; Station 177, living, in 18 fms., at Domin- 

 March 23, 1889. 



