Lingual Dentition of Pinerla Viequensls^ Pfeiffer. 23 



quensis, asks whether both should not be transferred to Macro- 



ceranius. 



H. and A. Adams {Gen. ii. 163) place Poey's species in Macro- 



ceramus, while Pineria is adopted by v. Martens {Alhers, '2d, 



ed) as a subgenus of Pnjya. 



We have compared specimens of Helix Sohrammi, received 



from M. Crosse, Pineria Viequensis from Barbados, and also of 



P. Schrammi from Anguilla, St. Martin, and St. Bartholomew, 



and are satisfied that all are of one and the same species, which, 



by priority, is entitled to the specific name, Viequensis. 



We obtained the jaw and odontophore from a dead specimen 



of this species, collected at the east end of St. Martin, by Dr. 



van Rijgersma, for which we are indebted to Mr. Robert Swift, 

 but no living example has at present been received to enable 

 us to form an opinion as to the presence or absence of the " in- 

 ferior tentacles." 



With respect to tlie alleged absence of those organs in 



Pineria, the following is a copy of a note by Poey, published in 

 1865, with a Catalogue of the Terrestrial and Fluviatile Mollusks 



of Cuba by Arango {Repertorio, 1. 145) : " En las altas regiones 

 de la filosoffa natural, tendran probablemente razon los que 

 suprimen mi genero Pineria, el cual he separado de los 

 Macroceramos por la razon, de que el animal no muestra ni 

 vestigios de tentaculos inferiores. Los principios formologicos 

 nos obligan a considerar que existen virtual mente ; por lo que 

 no me opongo a que se suprima." 



Before the commencement of the late European M^ar, M-e sent 

 to M. Crosse, unfortunately without previous examination, the 

 odontophore from a dead specimen of P. terebra, as to which 

 we hope to have a report at no distant day. 



It will be seen from what has been stated above, that an 

 opinion has been generally entertained in favor of placing the 

 species of Pineria in the genus Macroceramus. 



Crosse and Fischer, in a late interesting paper {Journ. de 

 Conch, xviii. 1, Jan. 1870) fully discussed the lingual dentition 



