MARYLAND GEOLOGICAL SURVEY 479 



which is apparently the same species. The shell is of triserial arrange- 

 ment of imequal lengths and chambers and ends in the characteristic 

 tubular neck. The segments are more or less globose and distinct with 

 definite suture with flaring aperture. 



Occurrence.— St. Mary's Formation (?). Crisfield well (776 feet). 



Collection. — Maryland Geological Survey. 



UviGERiNA pygm.5:a d'Orbigny. 

 Plate CXXXITI, Fig. 9. 



Umgerma pygmcea d'Orbigny, l»2fi, Ann. Sci. Nat.,voL vii, p. 20'.t, pi. xii, figs. 8, 9; 



Modele No. 67. 

 Uvigerina pyfftncea Bagg, 1898, Bull. Amer. Pal., No. 10, p. o3. 



Description. — Test more or less broadly ovate, stoutly built, with thick 

 shell wall. The chambers are numerous, large and globose, separated 

 by depressed septal lines. The surface is marked by a number of promi- 

 nent longitudinal costse which are less numerous and larger than in the 

 longer and more tapering Uvigerina tenuistriata Eeuss. The primordial 

 end is rounded and the anterior extended into a short tubular neck with 

 flaring aperture. This interesting little species occurs quite frequently 

 in the well-boring at Crisfield. Its geological range is from the Miocene 

 to Eecent. 



Occurrence.— St. Mary's (?) Formation. No^-foik well (645 feet). 



Collection. — Maryland Geological Survey. 



Uvigerina tenuistriata Reuss. 

 Plate CXXXIIT, Fig. 10. 



Uvigerina iennixtriata Reuss, 1870, Sitzungsb. d. k. Akad. Wiss. Wien, Tol. Ixii, 



p. 485, pt. i. 

 Uvigerina lenuistriata von Schlicht, 1870, Foram. Septar. Pietzpulil, pi. xxii, tigs. 



34-37. 

 Uvigerina tenuistriata Bagg, 1898, Bull. Amer. Pal., No. 10, p. 32. 



Description. — Test much more finely striate than Uvigerina pygmcea, 

 more slender, tapering to a small well-rounded end below and gradually 

 increasing in size above. The chambers are not so globose and the septa 

 are not so depressed as in Uvigerina pygmcea. The aperture at the end 

 of a tubular neck as in typical Uvigerina forms. The species is less 



