32 Bulletin io 326 



figs. 25-27, 1839. 

 Uvigerina uriiida d'Orbigny, Foram. Foss. Vien., p. 189, pi. xi, 

 figs. 21-22, 1846. 



The test of Uvige^dna canaidensis is characterized, by its smooth 

 shell although faint indications of costse are sometimes seen 

 in recent specimens and in the form described by d'Orbigny 

 under the name Uvigerina urnula from the Miocene of the Vienna 

 Basin. The shell is in the form of an irregularly built tri- 

 serial spire of various length , and ends in a more or less elong- 

 ated tube with a flaring aperture. 



The segments are more or less globose and distin(ft, the sut- 

 ure being well marked; length 0.57 mm. 



Horizon afid locality . — Miocene?; Crisfield, Md. Well boring; 

 depth, 776 feet. 



Geological distribution . — Miocene to Recent. 



Uvigerina pygmsea. 



Syn. Uvigerina pygnicea d'Orbigny, Ann. Sci. Nat., vol. vii, p. 269, pi. 

 xii, figs. 8, 9, 1826. Modele, No. 67. 

 Uvigerina pygnicsa Parker and Jones, Phil. Trans., vol. civ, p. 363, 

 pi. xiii, figs, 53-7; xvii, fig. 65, 1865. 



Test more or less broadly ovate and stoutly built, with thick 

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

 are separated by depressed septal lines. The surface is marked 

 by a number of prominent longitudinal costae which are less num- 

 erous and larger than in the longer and more tapering Uvi- 

 gerina teyiuistriata Reuss. The primordial end is rounded, the 

 anterior extended into a short tubular neck with a flaring aper- 

 ture. 



This interesting little species occurs very abundantly in the 

 samples of greensand from the well boring at Norfolk, Va., 

 and is not rare in the boring at Crisfield, Md. 



Horizon and locality. — Miocene; Norfolk, Va. Well boring; 

 depth, 645 to 685 feet. Occurs also at Crisfield, Md., in a deep 

 artesian well boring. 



Geological distribution. — Miocene to Recent. 



Uvigerina tenuistriata. 



Syn. Uvigeritia tenuistriata Reuss, Sitzungsb. Akad. Wiss. Wien., vol. 

 Ixii, p. 485, pt. i; von Schlicht, Foram. Septar. Pietzpulil, pi. xxii, 

 figs. 34-37, 1870. 



