20 Bulletin io 3^4 



line very similar to Textularia hauerii dC Orh\^ny , but separat- 

 ed from that species by its more angular lateral edges, and 

 differing from Textiilaria abbreviata d'Orbigny, which it also 

 resembles, in being less short and thick; length, .50-. 78 mm. 



The above species is quite common in the Miocene of Virginia. 



Horizon and locality. — Miocene ; James river and Yorktown , Va . 



Geological distribution. — Cretaceous to Recent. 

 Textuiaria sagittuSa. 



Syn. Textuiaria sagittula Defrance, Diet. Sci. Hist., voL xxxii, p. 177; 

 vol. liii, p. 344; Atlas Conch., pi. xiii, fig. 5, 1824 

 Textuiaria sagittula Brady, Chal. Rep't, vol. ix,, p. 361, pi. xlii, 

 figs. 17, 18, 1884. 



Test elongated, strongly compressed with sharp-angled peri- 

 pheral margins; chambers numerous, closely set, separated b}^ 

 short, straight septal lines visible externally; aperture linear; 

 length 0.69-1. lomm. 



Horizon and locality. Eocene; Marlboro, Md. 



Miocene; James river, Va.; Plum 

 Point, Md. 



Geological distribution. — Cretaceous to Recent. 



Textuiaria subangulata. 



Syn. Textuiaria subangulata d'Orbigny, Foratn. Foss. Vien., p. 274, pi. 

 XV, figs. 1-3, 1846. 



Test consisting of a relatively small number of chambers which 

 increase very rapidly in size from the posterior to the anterior end; 

 peripheral margins sharp-angled. The sides of the shell are 

 laterally compressed and parallel, only their extremities form- 

 ing the sharp-angled periphery; posterior end acuminate, anterior 

 broad and obtusely rounded; ultimate chamber much elevated and 

 larger than any other segment; aperture an arched median slit 

 along the inner margin of the final segment; length i.o mm. 



Horizon and locality . — Miocene; James river, Va. 



Geological distribution . — Tertiary. 

 Spiroplecta clarki. 

 Syn. Spiroplefla clarki Bagg, Johns Hopkins Univ. Circulars, vol. xv, 

 p. 5, 1895- 



Te,st elongate, textulariform, finely arenaceous, firmly cement- 

 ed; compressed strongly, lateral margins sharp and very slight- 

 ly lobed; surface of shell rough, of a dull gray color; cham- 

 bers at first planospiral then arranged biserially with nine and 



