537 



Orthis 



Also in Fellows' collections at Bellefonte, Spec. 210-3 B, -4 

 (several),-? (ventral, and cast of dorsal), -8 (good interior, 

 ventral), -9 (good to draw), -11 (poor), -18 (very poor), -26 

 (possibly Zygospira modesta ?) -27 (very good ventral interior), 

 -28 (fair), -29 (good interior), -48 (poor), -m {a slab covered 

 with shells), -82 a (poor), -98 (poor), -111 (several very good), 

 -116 c,-lll a (fragments), -136 (fair, eleven indiv.), -147, 

 -149 5, -154. — Also in Fellows' coll. 1876, on hill top, road 

 from Tyrone Gap to Warrior's Mark, N. of Tyrone forges,Hunt- 

 ingdon Co., Pa. Spec. 212-4 (a specimen of Trenton limestone 3 

 inches square, with about ten individuals in it), 212-5, 212-6. — 

 In Northampton Co. this shell is sparingly seen at A. Knecht's, 

 i mile S. W. of Stockertown, close to the Bushkill creek ; it is 

 numerous in the lower beds of the Churchill quarry, under the 

 encrinal heds^ Colonies of it are to be seen at Howell's cotton 

 mill on the Delaware river. A few were found among the en- 

 crinite stems in the J. Russ quarry at Nazareth. D3, pp. 162, 

 165. — In Huntingdon county it crowds some of the Trenton 

 beds. (C. E. Hall, T3, 367.)— In Centre Co. Ewing finds it 

 both in the Trenton and in the Hudso7i river formations. T4, 

 424, 4c^1,—IIg, III h,— In Perry Co. Claypole's two specimens 

 12,828 were found in Hudson river slate, — Illh. 



Orthis testudinaria, Dalman. Vet. Acad. Hand. 1827.— 



Trenton and Hud. Eiv, Gr, IIc^ 

 nil. Geology of Canada, 1863, 

 page 165, figs. 144 a, 5, c— Tren- 

 ton limestone^ lie. 



Orthis tioga, ( Orthis interlineata) Hall, Geol. 4th District. 



Via.?-- 



Hata 



page 267, fig. 121, 3, 4. Chemung.^ (Pal. 

 N. Y. Vol. 4, 1867. Portage and Chemung 

 formations.) — Found in Pennsylvania, at 

 Dingman's Creek Falls, near Dingman's 

 Ferry, Pike Co., Fellows' collections, spec. 

 808-2 ; and along canal, north of Port Jer- 

 vis, Orange Co., N. Y. Hall and Fellows' 

 coll. spec. 809-1,-5 (two); also in Ham- 

 ilton strata. VIII c. — In Perrv Co. Clav- 

 pole's doubtful spec. 64-8, Sherm^ndale. 

 VIII-IX. — In Columbia Co. in Stony 

 Brook group (G7, p. 1'l,)—VIIIg. 



