210 PROCEED^GS OF THE [AugUSt, 1888. 



AUGUST 23d, 1888. 



Br. G. E. Manigault in the Chair. 



Bj>oks jReceived. 



The Corresponding Secretary reported the receipt of a large 

 number of Government Eeports, &g,, thrmigh Hon. M. C. Butler, 



M. a 



Dr. Manigault exhibited a specimen of the Cutlass Fish, Tri- 

 chiuru& leptiiriis, from the coast of South Carolina. 



Mr. Mazyck exhibited specimens of Helix BermudensUy Pfmf- 

 FEK, and of typical species of the various genera and sub-genera to 

 which it has been referred, and read the following 



Nate on Helix Bermudensis, Pfeiffer. 



BY WM. G, MAZYCK. 



In the Proceedings of the Zoological Society of London for 1845, Ihr, Pfeif- 

 fer described this well known shell under the above name. For mony years 

 it has occupied a very uncertain position. 



In 1854, H. and A. Adams, in their Genera of Recent Shells, Vol. ii^^.p^ 115, 

 placed it in Trochmnoi^ha, Albers, a sub-genus of Zonite% Montfort, in the 

 %vh-iQX!ci\\.y HelUceUincer^ Family (Mea&inidm of their classification. 



Von Martens in 1861, Albers' Heliceen, p. 156, has it in Carocolu&y Mont- 

 FOKT, a sub- genus of the great Linnean Helix. 



Mr. Thomas Bland, in the same year, in his Catalc^ie of the Land Shells of 

 the West Indies, Annals of the Lyceum of Natural History^ New York, Vol. vii, 

 mentions it simply as HeUx Bermudensis, Pfb., but in 1872,. in a joint paper 

 with Mr. W. G. Binney on the Lingual Dentition of several species of Terres- 

 trial Pulmonata, Ann. Lye. N. Y., Vol. x, p. 221, he suggests its removal to 

 "the Vitriiiea of Yon Marten's arrangement "^ without, however, designating 

 its generic position. 



In October, 1874, Mr. Bland mentions the species, Ann. Lye. N. Y.^ xi, p. 77, 

 as Hyalina Bermudensis^ Ppr. 



In September, 1876, Mr. Binney, Proc, Acad. Nat. Sci. Phila,, p. 184, gives 

 the details of the anatomy of the species and says : " The absence of the cau- 

 dal mucous pore removes the species from Zonites, nor can it be placed in any 

 recognized gen as.'* 



