329 Left. 



nepeg, are added for comparison. 1852, pi. 2A, figs. 11, 12. — 

 // G. — Numerous in the lower beds of Trenton limestone at 

 Ohurchville quarry, Northampton Co., Pa. D3, p. 162. Lie 

 in colonies in the limestone slabs in the quarries on the Dela- 

 ware river at Howell's cotton mill, D3, p. 163. Very abundant 

 in some of the Trenton beds on the Little Juniata, T3, p. 367 ; 

 and in Centre Co. T4, page 424, in Trenton, and p. 427, in 

 Loraine shale. In Bedford Co., Cove Creek, in Upper Trenton 

 beds, T2, 164 ; and found by Stevenson in a block of soft red 

 sandstone, summit of road from Friend's Creek into Morrison's 

 Cove, Evitt's mountain, top of Lorame shale^ T2, 170. — Speci- 

 mens in Claypole's collections, 223-5 (nine specimens with 

 Discina^ Strophomena^ and Orthis testudmaria) S-19, X-24 

 (two.)— Specimens (00, p. 231) 203-8 B (one or two interiors, 

 excellent for figuring ; exteriors not so good ; and with a beauti- 

 ful Stictopora acuta^K) ; 203-46 ; both from Bellefonte, — 210-1 

 ( several ventral and dorsal valves, interior of ventral valve pretty 

 fair ; the dorsal valves form a very pretty slab ) ; 210-6 ( a mass of 

 mostly crushed shells) ; 210-11 (A.fair for drawing; B. interior 

 of ventral valve excellent) ; 210-30 (mostly poor interiors) ; 

 210-44 (very poor); 210-50 (small, numerous, poor) ; 210-61 a 

 (poor) ; 210-76 (exterior and interior, fair to good) ; 210-90 

 (both poor); 210-93 (mostly interiors and poor); 210-103 

 (large slab covered with specimens) ; 210-110 (mostly interiors 

 and ventral valves, some of them excellent) ; 210-111 (many 

 good interiors); 210-114 (mostly interiors of ventral valve, 

 fairly good); 210-116 (mostly interiors, fair) ; 270-119 (dorsal 

 valve and interior of ventral, not good); 210-123 (many in- 

 teriors, fair. The whole slab would make a good illustration). 

 210-126 (fair); 210-147 (two); 210-135 (two, fair) ; 210-141 

 (two) ; 210-146 5; 210-147.—//^, llll, Va. 



Leptsena striata. Hall, Pal. N. Y. Vol. 2, 1851, page 

 259, plate 53, fig. 7. (For figure see Strophomena striata^ Hall, 

 4th Dist. N. Y., 1843, p. 104, fig. 3.) Recognized by G. B. S. at 

 McKee's, Mifflin Co., Pa , in specimen 501-49, from roof shale 

 of Clinton fossil ore, Va, — See Appendix. 



Leptaena transversalis. ( Strophomena transversalis. ) 

 ^ll^ ^^^ ^^^^' P^S® ^^"^' ^^' ^^' ^' ^^^^^^(^ formation, 

 ^^^r ^ ^IP ^ ^' (I^^^™^^? ^^'^^ Acad. Handlungen. 



^^ v. ^^^ Anticosti formation of Canada. — Y h. 



