307 Leio. 



heds ; 51-3, 6, 8, from Kingsmill heds^ ditto. ; 57-45, 46, 48, 

 from Jenkins farm, 5 m. W. of N. Bloomfield, ditto.; 132-1, 

 from Hartzlein's, S. of mouth of Locks run, Wheatfield, Perry- 

 Co., Chemung, — In Columbia Co., near Bloomsburg, specs. 68-3 

 to 8, and 21 ; 80-1, 2, 7, 16 ; 92-2. It is abundant in bed 9 of 

 Sect. 12, and beds 30, 40, 41 of Sect. 13, at Rupert (G7, 69) ; at 

 Stony Brook, in bed 37 of Sect. 63 (G7, 197) ; on Fishing creek, 

 bed 30 (G7, 216, 227); at Catawissa, bed 98 (G7, 240); W. 

 Shamokin township, North. Co. (p. 350, 356) ; Jackson t. (p. 365, 

 Upper Chemung) ; L. Mah. t. (p. 367, 286, 287 Chemung) , at 

 Danville (p. 308) ; in Mifflin t., Col. Co., within 200' of bottom 

 of Chemung (p. 70). — In Centre Co. Ewing finds it in the Che- 

 mung, — In N. W. Penn., Crawford and Erie Cos., it is scattered 

 through the Venango lower shales, between the 2d and 3rd Oil 

 sands (Q4, p. 104) ; and in Ohio, Dr. Newberry finds it with 

 Spirifera disjuncta^ Spirifera alta^ and Orthis typa^ in the 

 thinned '' Erie shale." (I, p. 77.)— VIII g-IX, 



Lieiorhynchus multicostatum. See Appendix. 



Leiorhynehus newberryi, with many other forms, in 

 Lothrop's Srd Oil Sand quarry, Erie Co., Pa. (G4, p. 298). 

 Becomes abundant from the nonfossiliferous bottom beds of 

 the 325' Chemung mass, upwards, to the top (p. 128.) — VIII g. 

 — See Appendix. 



Leiorhynehus quadricostatus, Van. Found in Perry Co., 

 Pa. (Claypole's Cedar run, W. Center, spec. 251,) in Salina 

 shale. — In Bedford Co. in beds 19 and 38 of Saxton section, 

 1200' and 1500' below lower Chemung Conglomerate (2500' 

 and 2800' beneath top of Chemung), T2, 80, 230. — Poitage shale. 

 — In Luzerne Co., Wappallopen section, bed 41, Chemung, 

 occurs a Leiorhynehus which may be this. (G7, 197.)— VIII f.^ g. 

 — See Appendix. 



Leiorhynehus ? In Bedford Co. prevails throughout 



the Hamilton sandstone, especially in bed 58 of Saxton section. 

 (T2, 82, 83, 232)— VIII c. 



Leiorhynehus ? Probably a new species. Spec. 850-15, 



00, p. 236, Sherwood's collection at Lawrenceville, Tioga Co.y 

 Pa., from Chemtung, VIII g. 



