Left. 332 



Leptodesma naviforme, recognized by G. B. Simpson, in 

 Specimen 850-18, in Sherwood's coll., at Lawrenceville, Tioga 

 county, Pa., from Chemung^ VIII g, — See Appendix. 



Leptodesma phaon, recognized by G. B. Simpson, in 

 Specimen 850-18, in Sherwood's coll., at Lawrenceville, Tioga 

 county. Pa., from Chemung^ VIII g, — See Appendix. 



Leptodesma parallela. (N. S. Simpson) Trans. A. P. S. 

 ^'?l.y*^^«8^?§«^ Phil. Dec. 1888, founded on specimen No. 9610 



of Randall's collections, on the hill north of 

 Warren, Pa., and wrongly labeled Oypri- 

 A.RSiTr.i889. cavdia. — OhemMug.^ VIII g, 



Leptodesmia potens. Hall. Specimen 59-9, Claypole's 

 catalogue, top of Pisgah hill. Perry Co., Pa. VIII 00, p. 

 237, specimeii 856-25, in Sherwood's coll. at Mixtown, Clymer 

 township, Tioga Co., Pa., from Chemung upper heds^ VIII g. 

 871-6, in Ashburner's coll. 1 m. N. of Salamanca, N. Y., from 

 strata below the Salamanca conglomerate.^ VIII g. — See Ap- 

 pendix. 



Leptodesma propinquum. Hall. Pal. N. Y. Vol. 5, pt. 

 1, pi. 41, fig. 17,16. Specimens in cabinet: 858-6 (two); 

 858-7; Sherwood's collection at Mansfield, Tioga Co., Pa. 

 Upper Chemung.^ VIII g. — See Appendix. 



Leptodesma protextum, recognized by G. B. Simpson in 



specimens 855-39, of Sherwood's coll. at Sullivan town., Tioga 



Co., Pa., and 9611 of Randall's collection at Warren, Pa, 



(wrongly labeled Cypricardia) \ both from Upper Chemung^ 



VIII g., or VIII-IX. — See Appendix. 



Leptodesma robustum, recognized by G. B. Simpson in 

 specimen 809-6 (?) Hall & Fellows' coll. near Port Jervis, 

 Pike Co., Pa., from Hamilton strata^ VIII g ; and 853-5, in 

 Sherwood's coll. at Tioga village, Tioga Co., Pa., from Chemung 

 upper strata. VIII g.^ VIII-IX. — See Appendix. 



Leptodesmia stephani, recognized by G. B. Simpson in 

 specimen 852-7, in Sherwood's coll. near Covington, Tioga 

 Co., Pa., from Chemung upper rochs^ VIII g. — See Appendix. 



Leptodesma ? 850-19 : 853-5 (two, in fair con- 

 dition) ; 853-6 (several fragments not determinable) ; 855-32 

 (in fair condition); 855-39 d (margins broken); 856-25; 

 858-9 ; 858-16 (requires work to dig it out for determination) ; 



