1 62 CRETACEOUS AND TERTIARY FISH. 



Enchodus semistriatus Marsh. 



Bnchodus semistriatus Marsh, Proc. Amer. Assoc. Adv. Sci., 1869 (1870), 



p. 230. Lower Cretaceous Marl Bed of New Jersey. 

 Phasganodus semistriatus Cope, Rep. U. S. Geol. Surv. Terr., II, 1875, p. 



277. (Greensand of No. 4, New Jersey.) 



Tooth slightly sigmoid in shape, compressed, with front sharp 

 cutting-edge minutely denticulated. Rounded posterior surface 

 marked by delicate striae, except near apex, which latter is 

 furnished with a barb. Length about 23 mm. (From Marsh.) 



Marsh also identified some smaller teeth more nearly straight, 

 but apparently without the apical barb. 



Formation and locality. Known from detached teeth from the 

 "lower Cretaceous marl bed of New Jersey" [probably mean- 

 ing the Navesink marl bed, K.]. 



Enchodus serrulatus sp. nov. 



Tooth somewhat sigmoid in form, well compressed, and front 

 cutting-edge sharp, very finely serrated. Convex posterior sur- 



Fig. 98. — Enchodus serrulatus Fowler. (Type.) 



face with many fine longitudinal basal striae, not reaching apex or 

 cutting-edge. No distinct barb, but apex with entire cutting- 

 edges, posterior extending below short distance as minutely ser- 

 rated edge. Striae quite deep and distinct on basal part of crown. 

 Length 16 mm. 



Formation and locality. A single tooth, without formation, 

 from Vincentown in Burlington County [the Manasquan marl, 

 K.] (T. M. Bryan). This example approaches E. semistriatus, 

 but differs in its posterior serrated apical keel, the apex itself 

 being entire. Type No. 5,866, Academy of Natural Sciences of 

 Philadelphia. 



{Serrulatus, with little serrae.) 



