AR-v. 19 FORAMINIFERA FEOM TENNESSEE BERRY AND KELLEY 5 



This species is the only Bolivina found in tlie material from Coon 

 Creek. It is rather common and characteristic. Cushman says ^ it is 

 very close to B. reussi Geintz. I can find little similarity. B. plaita 

 is found in the Navarro of Texas and in the Ripley at Owl Creek, 

 Miss., as well as in the Ripley of Coon Creek. 



Plesiotijpe.— Cat. No. 73666, U.S.N.M. 



Genus BULIMINA d'Orbigny, 1826 



BULIMINA QUADRATA Plummer 



Plate 2, Figure 7 



Bulimina quadrata Plummer, Univ. Texas Bull. 2644, 1926, p. 72, pi. 4, 

 figs. 4-5 



Test elongate, stout, cylindrical, slightly tapering, aboral end 

 l)hmtly rounded; chambers smooth, slightly inflated, arranged in a 

 slight Textularian series, usually 8-9 chambers in the adult test; 

 sutures sharp, only slightly depressed; aperture a large vertical slit 

 on the inner side of the last chamber. 



Length, 0.44 mm. 



This specimen agrees very closely wdth that figured as the megalo- 

 spheric form of the species by Mrs. Plummer. She records it from 

 the upper faunule of the Midway formation of Texas. 



Plesiotype.—C?it. No. 73667, U.S.N.M. 



Family LAGENIDAE 

 Genus LAGENA Walker and Boys, 1784 



LAGENA SULCATA (Walker and Jacob) van SEMIINTERUPTA W. Berry, new variety 



Plate 3, Figure 19 



Test flask-shaped, body portion subglobular, ornamented with 

 numerous fine, platelike costae ; these costae are even in number and 

 are arranged in loops starting at the base of the apertural neck, go- 

 ing almost to the apical end, and returning to the starting place but 

 not connecting ; the pairs alternate in their distance from the apical 

 end ; neck smooth, ending in a simple circular aperture. 



Length, 0.48 mm. 



This variety is in general like the parent species but differs greatly 

 in the costae. In this variety they are formed in pairs, that is, they 

 run from the apertural end to the apical end, but before reaching it 

 they loop back. The pairs also alternate in their approach to the 

 apical end. It is a very rare and delicate variety. 



Holotype.— Cat. No. 73668, U.S.N.M. 



« Contr. Cush. Lab. Foram. Research, vol. 2, pt. 4, 1927, p. 89. 



