320 MALACOZOA. CEPHALOPODA. FORAMINIFERA. 



enlarged and emarginate at the end. Plandtus, flat- 

 tened. 



Shell roundish, very thin, of three arcuate, much compressed 

 turns, which are opaque, yellowish-white, moderately glossy, 

 faintly rugose in the transverse direction, the outer margins 

 thhi, but not carinate; all the turns apparent on both sides, 

 the last very large ; the aperture large, obovato-oblong, with 

 a slightly thickened and somewhat spreading margin, and a 

 medial erect tooth, extending to two-thhds of its height, and 

 enlarged and emarginate at the end. Diameter nearly a 

 twelfth of an inch. 



It differs from Vermiculum disciforme in not being carinate, 

 and in having the tooth of quite a different form. In this re- 

 spect it approaches Vermicidum oblongum, which differs in 

 shape, is not flattened, and has the tooth, although divided at 

 the end, otherwise dissimilar. 



Found by me, in January 1843, in shell sand from Ugie- 

 mouth, sent by Mr. Murray, in December, 1842. 



Family II. — Textulariina. 



Shell many-ceUed, with the cells disposed alternately 

 in two or three parallel series. Name from the genus 

 Textularia. Enallostega, D'Orbigny. 



Genus 1. Polymorphina. 



Shell oblong or oval, of several oblong cells, disposed 

 obliquely and alternately in two series, with the aperture 

 round, at the summit of the last cell. Uokvs, many; 

 fiopfpT), form. D'Orbigny. 



1 . Polymorj)hina Idctea. Vermiculum lacteum. P. 25, 37. 



Genus 2. Textularia. P. 25, 37. 

 2. Textularia ohtiisa. Blunted Textularia. 



Shell oblong, rounded at the end, compressed, with 

 the margins thin, of two alternate vertical series of hori- 

 zontal, rather convex, glistening, prominently granulated, 

 reddish-white cellules. Obtiisus, blunt. 



