428 THE VOYAGE OF H.M.S. CHALLENGER 



Station 75. July 2, 1873. Lat. 38° 38' N., long. 28° 28' 30" W. Fayal, Azores. 

 450 to 490 fathoms. Volcanic mud. 



Habitat. — Mexico (Gaskoin) ; Madeira (Watson) ; Canaries (M' Andrew) ; Spanish 

 south coast (Hidalgo) ; Mediterranean (Monterosato). 



I have quoted Sowerby above in the hope that it is this species to which his description (if 

 description it can be called) and figure refer. Weinkauff (Conch. Cab., p. 158, sp. 177, pi. xlii. 

 figs. 10, 11) it is impossible to quote, for he does not seem to have kept this species before him even 

 if he ever got hold of it, disturbed as he seems to have been with help offered him to this end. At 

 the same time, the doubt he seems to imply of the species from the Mediterranean, Madeira, and 

 Canaries being really the Mexican species referred to by Gaskoin, seems not to be without some 

 foundation. One could wish he had given this point closer attention. 



13. Cypraa {Trivia) pellucidula, Gaskoin. 



Cyprcea pellucidula, Gaskoin, Proc. Zool. Soc. Lond., 1846, p. 23. 

 ,, ,, Reeve, Conch. Icon., vol. iii. pi. xxvi. fig. 153. 



„ ,, Sowerby, Thes. Conch, pts. 26-28, p. 50, No. 182, pi. cccxxvii. (xxxvi. Gen.), 



figs. 497-499. 

 „ pellicula, Weinkauff, Conch. Cab. (ed. Kiister), p. 161, No. 180, pi. xliii. figs. 1, 4. 

 Trivia pellucidula, Brazier, " Chevert " Exped. Shells, Proc. Linn. Soc. New South Wales, voL i. 

 p. 299, No. 77. 



July 1875. Reef off Honolulu. 40 fathoms. 



Habitat. — South Pacific (Gaskoin), Torres Strait (Brazier). 



Weinkauff (Conch. Cab., ut svpra) says that this species has not been found since Gaskoin, that 

 all the specimens he has seen in collections under this name are Cyprcea {Trivia) hordacea, Kiener, 

 and he administers a severe reproof to him who is reckoned " in England als erste Autoritat fur die 

 Cyprseidaa " for inconsiderateness and other shortcomings in presenting a " so schwach fundirte Art." 

 The species, however, is after all a good one, and its author is not responsible for Mr Weinkauff's 

 spelling. 



Family Velutinhle, Gray, 1840. 

 Genus Separatista, 1 A. Adams, 1850. 



The name of the genus was taken by Gray from Chemnitz's name of the species {loc. cit. infra) 

 and was published in Proc. Zool, Soc. Lond., 1847, p. 136, No. 31, but the genus was defined by 

 A. Adams, Proc. Zool. Soc. Lond., 1850, p. 45. 



Separatista chemnitzii, A. Adams. 



Turbo helico'ides {bis), Gmelin, Syst. Nat., p. 3598, No. 109. 



„ separatista, Chemnitz, Conch. Cab., vol. x. p. 298, pi. clxv. figs. 1589, 1590. 



„ „ t Dillwyn, Cat., vol. ii. p. 867, sp. 124. 



„ „ Wood, Ind. Test., p. 158, pi. xxxii. fig. 126. 



Separatista chemnitzii, A. Adams, Proc. Zool. Soc. Lond., 1850, p. 45. 

 TrichotropisJblainvilleanuSjFetit de la Saussaye, Journ. de conch., 1851, vol. ii. p. 22, pi. i. fig. 5. 



