s p: C T T N I . 



BRACHIOPODA OF THE MIOCE]NrE MARLS OF NEW JERSET. 



A single species only of this groujj of shells has been obtained or 

 .noticed from these fonnations within the limits of the State. The form, a 

 Discina, appears to be quhe abundant in the marls at several of the locali- 

 ties, but so far none but upper valves have been obtained, not the least 

 part of a lower valve being found so far as could be detected. The 

 absence of this class of animal life in these Miocene deposits is not so 

 remarkable when one takes into consideration the fact that there is almost 

 as complete an absence of them in all the American Atlantic Tertiary 

 deposits, and but very few even in the older Cretaceous deposits over the 

 same areas. To be sure, in the Cretaceous there is, through a portion of 

 New Jersey, a superabundance of individuals of two of the species — Tere- 

 hratula Harlani and Terebratella plicafa — liut in species even these deposits 

 are remarkably deficient, only six species probably being known in the 

 Cretaceous witliin the. State, one of which, T. Attanfica, is quite doubtfully 

 of Cretaceous age. 



Class BRACHIOPODA. 



Order INARTICULATA. 



Family I^ISCINII^^E. 

 Genus DISCINA Lamarck. 



UlSCINA LTJGUBRIS. 



Plate I. tigs. 1-3. 



Capulus luguhris Conrad: Jom-. Acad. Nat. Sci., vol. 7, p. 143. 

 Orhicula liigubris Conrad: Medial Tert. Foss., p. 75, PI. XLiii, fig. 2. 

 Discina luguhris (Conrad) Meek : Smith. Check list, p. 3. 



