94 CRETACEOUS PALEONTOLOGY. 



Gastropoda. 



Scala sillmani Mort. 

 Lunatia halli Gabb. 

 Gyrodes crenata Con. 

 Gyrodes petrosus (Mort.). 

 Tiirritella trilira Con. 

 Turritella sp. 



■Anchura rostrata (Gabb).? 

 Pterocerella tippana (Con.). 

 Pugnellus densatus Con. ? 

 Pyropsis retifer (Gabb). 

 Fiisiis holmesianus Gabb. 

 TurbineUa alabaincnsis Gabb. . 

 Volutoderina hiplicata (Gabb). 

 Picstocheilus bella Gabb. ? 

 Piestocheihis kanci Gabb. 

 Turbinopsis depressa Gabb. 

 Actacoii cretacea Gabb. 

 Cylichna recta Gabb. 



Cephalopoda. 



Placcnticci'as placenta (DeKay). 



Verte;brata. 



Shark's teeth, several species. 

 Bnchodus sp. (teeth). 



A httle over i jnile east of Marlboro, in the south bank of Hop 

 Brook, just east of the wagon bridge across this stream, is an 

 excellent exposure of the upper beds of the Wenonah sand and 

 the superjacent Navesink marl, the Mount Laurel not being rep- 

 resented. The section shovi^n at this locality (130) is as fol- 

 lows, beginning at the base: 



130^. Black, micaceous and arenaceous clay, extend- 

 ing below the level of the brook. Fossils are abundant, 

 but all are in the condition of casts. In the upper por- 

 tion of the bed numerous c[uartz pebbles of the size of 

 peas a-re scattered throughout the clay, 6 feet. 



