MAIIYLAM) fiHOLOGICAL SURVEY 139 



I''i(siis (Leiiifiisiii>) /riilii'ii/iis ClaiU, \x'.K>, .IdIhis Hojikiiis I'liiv. Ciic, vul. xv, p. 4. 

 (In part.) 



FiiKHs (/jrifiixiix) ti-Khadnn Cliirk, 1 S'.iC, |',iil|. Ill, 1. S. ( hm)1. Sii rv<'\ , ii. (i7. (Ill 

 part.) 



Description. — "Shell subliisiroi'in. \ciitiicosc, with revolving elevated 

 striae at the base, and inorc obscure ones on the spire: body wlmil with 

 two distinct rows ol' tulu'i-clrs, Imiiici'al one eoiit iiincil mi the s|iire.'' 

 Conrad, 1829. 



Several fragments of molds of the exterior, as well as less clearly de- 

 fined casts of the interior, have been found. They cannot bo identified 

 with L. traheatus with certainty. The casts from Aquia Creek wliich 

 were formerly identified with this species are evidently of an indetenni- 

 nate Tudicla. 



Occurrence. — Nanjemoy Formatiox. Popes Creek. 



Collection. — Maryland Geological Survey. 



Levifusus trabeatus (?) var. 

 Plate XXIII, Fig. 3. 



Description. — A single, imperfect specimen was found at Woodstock 

 which cannot be distinguished in its present condition from a Fulgur. 

 It would be unwise, however, to assume the presence of that genus in 

 the Eocene without better evidence than a single cast. The specimen 

 is too imperfect for description but a figure is given and the form tenta- 

 tively referred to a variety of the preceding species. The substance of 

 the shell is very thin and apparently smooth. The shoulder is carinate 

 or tuberculate. The suture does not seem to be channeled. 



Length, 73 mm.; width, 25-40 mm. (flattened). 



Occurrence. — ISTanjemoy Formatiox. "Woodstock. 



Collection. — Maryland Geological Survey. 



Genus METULA Adams. 



Metula martlaxdica n. sp. 



Plate XXIII, Fig. 5. 



Description. — Shell small, elongate, six-whorled; sculpture of longitu- 

 dinal folds and elevated revolving ribs; body whorl with thirteen longi- 



