85 - 



given "binomial standing by d'Orbigny in his VTork on the mollusos 

 of ^uhs. Sinoe there is some Gonfiision concerni. '" "ate of 

 piiblioation of the two editions of that work it is uncertain \T^eth- 

 er d'Orbi.?-ny 's or Philir^pi's name has the rip-ht of orioritj?. '^'he 

 date given on the title-page of the Spanish edition is 1845, but 

 in the text the author refers to publications that did not appear 

 until 1846. If this edition was published in fascicles, like the 

 French edition, the i^rcas probably were included in the last fas- 

 cicle. Although the date of the ?renGh edition is usually given 

 as 1853, the fascicles appeared at different times and the one 

 containing the Areas was probably published about 18-7. Although 

 d'Orbigny did not fiprure bar leadens is there is no doubt concerning 

 its identity since he stated that it v/as the form that had been 

 confused with the I'e^iterrs.nean A. noae Linnaeus. Unti!l more defi- 

 nite information is available it is advisable to retain Phili"opi's 

 1 n a'- est ah 1 -' ' '"-■ "^ ■'' "'i. = - 1 c- . 



OcGurence_. - Uooer Oligocene.- Santo Domirg-o (Gupioy, 1874, 

 1876). Curacao (Dall, 1898). Lower Miocene : Bowden beds, Bov/- 



den, Jamaica (Quopy, 1874, Dall, 1893). Pliocene.- '■aloosahat- 

 chie fornation, Florida (Dall, 1898)',;^ Pleistocene.- Florida '-ers, 

 Yucatan, and most of the 7est Indian Islands ( Dall, 1898). Pana- 

 ma (Brov/n and Pilsbry, 1913). Recent.- Hatteras to Santo Llarta 

 and Carthegena, east to Bermuda and off the west coast of North 

 America in 1 to 20 fathoms. 



