48 CRETACEOUS AND TERTIARY FISH. 



From "New Jersey" 3 (E. D. Cope), 8 (C. C. Abbott), 3 (P. D. 

 Knieskern), 3 (Kilvington) ; Monmouth County 40 without 

 donor, 18 (Knieskern), 178 (W. Cleburne), 1 (Abbott), 95 (Ab- 

 bott and Knieskern) ; Farming-dale 2 (H. A. Pilsbry) ; Shark 

 River 5 without donor and 26 (T. A. Conrad) ; Long Branch 

 20 without donor and 3 (H. C. Chapman) ; Burlington County 

 99 (Conrad) and 21 (C. Budd) ; Pemberton 31 (Budd) ; Vin- 

 centown 127 (T. A. Bryan) ; Allowaystown in Salem County 

 13 (H. C. Yarrow). [The geological horizons from which these 

 came . are probably as follows : Farmingdale, the Manasquan 

 marl; Shark River, the Shark River marl (Eocene), perhaps 

 the Manasquan marl; Long Branch, the Hornerstown or Man- 

 asquan; Pemberton, Manasquan; Vincentown, Manasquan marl, 

 less probably the Vincentown limesand ; Allowaystown, the Kirk- 

 wood (Miocene) K.] 



In the collection of the Geological Survey I have found 

 the following teeth : From the upper marl of Shark River 

 [Eocene, K.] 8 (A. Shatter's pits), the upper marl [Manas- 

 quan, ? K.] of Farmingdale 1 (Johnson's pits). Manasquan 

 marl, 1 mile south of Farmingdale, 9 fragmentary crowns with- 

 out basal cusps, probably 7 teeth from Shiloh [Miocene, K] 

 (E. Davis), 1 from top of the Red Bank sand at Hornerstown, 

 104 from Monmouth County (Knieskern), and 5 without data. 



Lamna ELEGans Agassiz. 



Lamna elegans Leidy, Proc. Acad. Nati Sci. Phila., 1872, p. 166. (New 

 Jersey Cretaceous.) 

 Cope, Proc. Am. Philos. Soc. Phila., XIV, 1875, P- 362. (Cumberland 

 Co. Miocene.) 



Anterior teeth long, slender, compressed and moderately tri- 

 angular, scarcely sigmoidal in profile. Crown usually slender, 

 subulate, erect or sometimes diverging outwards. Outer coronal 

 surface flattened or but slightly convex, smooth. Inner coronal 

 surface usually well convex, sometimes little flattened in middle, 

 and marked with very many fine, delicate parallel vertical striae. 

 Apex erect or variously deflected. Cutting-edges prominent, en- 

 tire. L T sually one, sometimes two, small acute basal cusps in one 



