NATURAL SCIENCES OP PHILADELPHIA. ' 29 



riety of the same ; at any rate, we have these two forms, and every intermediate 

 gradation between them, from the same bed. Locality and position same, as 

 the preceding. 



Myalina squamosa. (Jfutilus squamosa, J. de C. Sowerby. Morris's Cata- 

 logue, p. 93. Myalina squamosa of some other authors.) 



Of the form, we refer with doubt to the above species; we have but one im- 

 perfect specimen. As far as the characters can be made out, it agrees with this 

 species. We found it iu division No 11, at Kansas Falls, above Fort Riley. 



Myalina subquadraia, Shumard. Missouri Geol. Rept., 2d part, p. 207, pi. c, 

 fig. 17. Upper coal measures, Leavenworth City, on t lie Kansas, at Lawrence 

 and otber localities in Kansas Valley, below mouth of Big Blue River. 



Edmondia? Calhouni, Meek and Hayden. Trans. Albany Inst., vol. iv., March 

 2, 1858. We are still in doubt in regard to the generic relations of this species, 

 having procured no better specimens thau that first described by us. We 

 suspect it may be a Cardinia. NearSmoky Hill river, in division 10. 



Bakevellia parva, Meek and Hayden. Trans. Albauy Inst., vol. iv., March 2d, 

 1858. This is probably the same species referred by Prof. Swallow to Avicula 

 antiqua, Minister, Bakevellia antiqua of King, and others. In describing this spe- 

 cies, we spoke of its very near relation to B. antiqua, but pointed out some 

 characters in which it differs. At that time we had seen but a few imperfect 

 specimens; since then, however, we have obtained many others, a careful ex- 

 amination of which causes us still to regard it as distinct from B. antiqua. 

 Of a large number of individuals, we have never seen any one-half the size 

 of the smallest, nor one-eighth the size of the largest figures of that species 

 given by King, while the cardinal area is also proportionably much narrower iu 

 our shell. Division No. 10. On Smoky Hill river and Cottonwood creek. 



Area carbonaria, Cox. Vol. iii. Geol. Report, Ky., p. 567, pi. 8, fig. 5. Our 

 fossil is smaller, and less distinctly striate, but exactly the form of the above. 

 Near Leavenworth landing, coal measures. 



Leda subscilula, Meek and Hayden. Trans. Albany Inst., vol. iv. March 2d, 

 1858. Division No. 10. Smoky Hill river and Cottonwood creek. 



Pleurophorus ? subcuneata, Meek and Hayden. Trans. Albany Inst,, vol. iv., 

 March 2d, 185S. Our specimens of this species being casts we are left in doubt 

 in regard to its generic relations. We suspect it may be a Cardinia. Same 

 locality and position as preceding. 



Axinus (Schizodus) ovatus, Meek and Hayden. Proceed. Acad. Nat. Sci. Phila. 

 Dec, 1858. This is very much like the Permian forms, S. roiundatus and <S. irun- 

 catus, but we found it in a rock on Cottonwood creek which we regard as below 

 the Permian. 



Axinus roiundatus, Brown. Trans. Manch. Geol. Soc. vol. i. p. 31, pi. 6, fig. 29. 

 We have refeired this little shell to the above species with some doubt, but 

 we have seen no characters by which it can be distinguished. No. 10. Near 

 Smoky Hill river. 



Allorisma? Lmvenworthcnsis, Meek and Hayden. Proc. Acad. Nat. Sci., Phila., 

 Dec, 1858, p. 263. Upper coal measures, Leavenworth City. 



Allorisma subcuneata, Meek and Hayden. Proceed. Acad. Nat. Sci. Phila. 

 ec, 1858, p. 263. Localiry and position same as last. 



Allorisma ? altirostrata, Meek and Hayden. Proceed. Acad. Nat. Sci., Phila 

 Dec. 1858, p. 263. Upper coal measures, Grasshopper creek. 



Allorismv? Cooperi, Meek and Hayden. Proceed. Acad. Nat. Sci., Phila. Dec, 

 1858, p. 264. {Panopcea Cooperi, Meek and Hayden. Trans. Albany Inst., vol. 

 iv., March 2,1858.) Near Helena, in upper coal measures. 



Leptodomus granosus, Shumard. Trans. Acad. Sci., St. Louis, vol. i. p. 207. 

 Upper coal measures, near summit of hills, back of Leavenworth City; also 

 near Leavenworth landing. 



1859.] 



