14 PKOCl.EDINGS OF THE NATt-^NAL MUSEUM .vol.70 



ANOMALINA NELSONI W. Berry, new species 



Plate 2, Figures 19, 20, 21 



Test nautiloid, dorsal side nearly flat to slightly concave, ventral 

 side convex ; periphery broadly rounded, lobate ; chambers numerous, 

 7-8 in the last formed coil, inflated, gradually increasing in size; 

 sutures distinct, depressed; wall punctate; umbilical cavity usually 

 filled with shell material; aperture an arched slit with a slight lip 

 above it at the base of the last chamber. 



Diameter, 0.52 mm. 



This species is not common in the material, but is so well charac- 

 terized that one should not have any trouble in determining it. 



H olotype. —Cvit. No. 73688, U.S.N.M. 



ANOMALINA COONENSIS W. Berry, new species 



Plate 2, Figures 22, 23, 24 



Test involute, somewhat compressed, nearly equally biconvex, peri- 

 pheral margin subcarinate; chambers numerous, usually 12 in the 

 last formed coil, very slightly curving; sutures limbate, slightly 

 raised, comma-shaped, slightly elevated at the edge of the umbilical 

 area; wall punctate; aperture an arched slit at the base of the last 

 chamber, extending toward the umbilicus. 



Diameter, 0.55 mm. 



A. coonensis is by far the most common species of Anovialina in 

 this material. It can be compared with A. ammonoides Reuss, but is 

 bigger, more equally convex, and has a sharper margin. It is prob- 

 ably fairly closely related to it. 



E olotype.— CviL No. 73689, U.S.N.M. 



ANOMALINA WADEI W. Berry, new species 



Plate 3, Figures 20, 21, 22 



Test nautiloid, dorsal side nearly flat, ventral side strongly convex, 

 periphery subcarinate, slightly lobate; chambers numerous, usually 

 10 in the last formed coil; sutures in the early portions of the test 

 limbate, later ones depressed, distinct; wall punctate; umbilical 

 cavity usually filled with shell material, small umbo present on 

 ventral side; aperture an arched slit at the base of the last formed 

 chamber, extending toward the umbilical area. 



Diameter, 0.52 mm. 



This very rare species is somewhat like A. 'pseudopapillosa Carsey, 

 but is larger and the umbilical is filled. A. pseudopapillosa is a com- 

 mon form in the Texas and Navarro, but in this material it is 

 absent. 



Holotype.—Q^t. No. 73690, U.S.N.M. 



