wHrTEAvEs] LARAMIE AND CRETACEOUS IXVERTEBRATA. 63 



GASTEROPODA. 



PlIYSA COPEI, White. 



Phym Cojiei, White. 1877. Bui. U. S. Geol. Surv- T.;it., vol. III., p. (in2. 



ISSn. U. S. GimJ. Surv. Terr., Cnntr. to Pal, N.js- 2-S, p. ^5, 

 pi. 24, tigs. 4 a and h. 

 " " l^'^:!. Rev. Xon-MaiiuL" Foss. Moll. N. Am., pp. 43, 44, pi. 



25, fiys. 1 and 2. 



South Saskatchewan, eight miles aljove the mouth of tlie Eed Deer 

 Piiver, E. G. McConnell, 1883 : a few specimens with the test preserved. 

 Near Bull's Head, same collector and date: two large casts of the 

 interior. 



Imperfect specimens of a few additional species of gasteropoda, which 

 are either too badly pi'e-erved to be determined, or properly character- 

 ized if new, were obtained at various localities from this subdivision of 

 the Belly Eiver Series. 



One of these is an elongated, spiral and evidently marine shell, from 

 3Iilk Eiver Eidge, which is most likely the young of a new species of 

 Aporrhais or Anchura, but which may be a Scalaria. It has at least six 

 rounded and ventricose shells with a deep suture, and its sculpture con- 

 sists of strong and straight ribs, which cross the vi^lutions transversely 

 but somewhat oblicjuely, and there are no indications of any spiral or 

 revolving markings. 



A second elongated, spiral shell, which occurs in the Belly Eiver 

 above Coal Banks and ai Milk Eiver Eidge, may be an extreme variety 

 of Goniobasis tenuicarinata, or perhaps a new species of iSjiironeina. 

 It also has about six very ventricose whorls and a deeply excavated 

 suture, but its volutions are suLi-angular aliove, and the sculpture of its 

 later whorls consists of four small spiral raised ridges. 



Fragments of a large Viciparm whicli is probably V Conradi 

 were collected by Mi'. McCoimell in 188.3 on the South Saskatchewan, 

 eight miles above the Eed Deer Eiver and on the Eed Deer Eiver, 

 while numerous perfect opercula, which resemble those of Vio/])aru.\ and 

 Campeloma except in being smaller, thicker and apparently calcareous, 

 were obtained by Mr. T. C. Weston in the same year from the Belly 

 Eiver, eight miles below Coal Banks. 



