ARTHROPODA. 845 



Family CYTHERELLIDAE. 



Genus CYTHEREU,A Jones. 



Cytherella submarginata Ulrich. 

 Palte CX., Figs. 8-9. 



1901. Cytherella submarginata Ulr., Md. Geol. Surv., Eocene, 

 p. 118, pi. 1 6, figs. 14-15. 



Description. "Carapace about i.o mm. in length, somewhat 

 oblong, rounded at the ends, the posterior end a little wider and 

 its margin more oblique above and merging more gradually into 

 the very slightly arcuate dorsal outline than the anterior; ven- 

 tral margin straight, edge view subcuneiform, end view subovate, 

 Valves compressed convex, thickest posteriorly, with an obscurely 

 defused broad depression near the midlength and mostly above 

 the center of the valves. A narrow but distinct rim borders 

 the two ends. Surface smooth." (Ulrich.) 



Remarks. This species described from the Eocene of Mary- 

 land is sometimes met with in washings from the Vincentown 

 limesand. 



Formation and locality. Vincentown limesand, Vincentown 



(154). 



Geographic distribution. New Jersey; also Eocene of Mary- 

 land. 



Super-order CIRRIPEDIA. 



Order THORACICA. 

 Family LEP A.DIDAE. 



Genus SCALPEUAJM Leach. 



Scalpellum conradi Gabb. 

 Plate CX., Fig. 10. 



1876. Scapellum Conradi Gabb, Proc. Acad. Nat. Sci. Phil. 

 (1876), p. 179, pi. 5, figs. 3-3b, 4. 



