( 6i ) Tertiary Moi^lusca of Ala. and Tex. 9 



joint name, so I omit any description. Very large specimens are 

 in my cabinet 44 mm. in length and 14 mm. in width. 



Borsonia sp. (young) .. PI. i, fig. 18.' 



Locality. — Claiborne, Ala. 

 Too j^cung f o ■ identification or description. 



Prof. W. M. Gabb in his article''^ on the Texas Eocene fossils 

 from Wheelock and vicinity describes a new genus, EiicJieilodon, 

 and makes the t3^pical species E. reticulata. This name it seems 

 advisable to retain as subgeneric, and it may be placecd under t^ct- 

 sonia. 



E. crenocarinata Heilprin from the Jackson beds does not differ 

 spec'.fically from T. reticitlata. The tj^pe of Gabb's species o^" 

 Scobinella IcEvipiicata is also the same ; Gabb was' misled by the 

 poor condition of his t3'pe. 



Scobinella Con. miglit be retained as a subgenus of Bovsonia for 

 those forms showing more than two plaits on the columella and 

 having a sculpture of coarse spiral lines beaded ; Cordiera Ren- 

 ault, for those forms showing two plaits on the columella and hav- 

 ing an ornamentation like C. biconica Whitfield. 



GLYPHOSTOMA. 



Glyphostoma harrisi, nov. sp. PI. i, fig. 11 



Shell small, whorls nine, spire acuminate, suture deeply im- 

 pressed; the first four whorls smooth, the next two with longitudi- 

 nal beads, balance with strongl}^ raised spirals ; suture bounded by 

 a cord above and below, followed by a broad excavated space cor- 

 responding to the fasciolar space ; lines on the last half of the body 

 whorl with an intercalary thread; aperture narrow, outer Ip 

 slightly incurved, striate within ; pillar lip thickened and bearing 

 two ( in the type) to six small plaits ; umbilicus rudimentary. 



Locality. — Wheelock, Texas, also in I^ee and Burleson Co's. 



The figure is a little too broad. 



This species is placed by Mr. Harris under P. infans Meyer, but 

 it seems to me to be a very different species as the latter has no 

 plaits on the columella, is narrower, has fewer whorls and a twist- 

 ed canal. 



*Descriptions of new species of American Tertiary and Cret?- 

 ceous fossils.- Jr. Ac. Nat. Sci., vol. 4, 2d ed., p. j/p, i860. 



