54 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



CUNEOLINA ANGUSTA Cashman, var. LATA, new variety. 



Cuneolina pavonina Jones and Parker (not d'Orbjgny), Ann. Soc. Mai. Belg., 

 vol. 11, 1876, p. 98.— Hill, Bull. Mus. Comp. Zooi., vol. 34, 1899, p. 147.— 

 CusHMAN, Publ. 291, Carnegie Inst. Wash., 1919, p. 34, pi. 7, fig. 1. 



This variety which has been noted by several authors from the 

 Miocene Marl of Bowden, Jamaica, is, as already noted, different 

 from C. pavonina d'Orbigny from the Cretaceous, and according to 

 the rules of nomenclature must, under the circumstances, have a new 

 name applied to it, which I have here done. This is the broad form 

 which I have described and figured from Bowden in the above refer- 

 ence, and the breadth of which is nearly equal to the length. 



It has not occurred as a recent form so far as I have seen. 



Subfamily 3. Verneuilininae. 



This subfamily includes those genera which, at least in their early 

 development, have a distinctly triserial arrangement of the chambers. 

 In Verneuilina this method of arrangement is continued throughout 

 the development of the test, but in other genera becomes modified. 

 In Gaudryina the early portion of the test is triserial and the adult 

 arrangement is biserial and comparable to Textularia. In Clavulina 

 there is still another regressive step and the young are triserial, while 

 the adult arrangement is uniserial with a central aperture. 



Genus VERNEUILINA d'Orbigny, 1840. 



Verneuilina d'Orbigny (type, V. tricarinata d'Orbigny), M6m. Soc. G^ol. France, 

 eer. 1, vol. 4, 1840, p. 38. — H. B. Brady, Rep. Voy. Challenger, Zoology, 

 vol. 9, 1884, p. 382.— Chapman, The Foraminifera, 1902, p. 166.— Cushman, 

 Bull. 71, U. S. Nat. Mus., pt. 2, 1911, p. 52. 



Bulimina (part) Reuss, Verst. Bohm. Kreid., pt. 2, 1845, p. 109, and other 

 authors. 



Polymorphina (part) Schultze, Organ. Polyth., 1854, p. 61. 



Textularia (part) Parker and Jones, Philos. Trans., vol. 155, 1865, p. 371; and 

 other authors. 



Description. — Test free, more or less elongate, tapering, in cross 

 section round or triangular, composed of a series of chambers 

 spirally arranged, but in three vertical columns; walls variable, 

 arenaceous or hyaline; aperture a slit at or near the base of the inner 

 margin of the chamber. 



In general the genus Verneuilina may be used to include all the 

 definitely triserial species which have a slit-like aperture at the base 

 of the inner margin of the chamber. This is apparently the primi- 

 tive genus from which have developed such genera as Gaudryina, 

 and in its relations to Textularia, Verneuilina may be taken as the 

 simplest member of the subfamily Verneuilininae. It includes a 

 number of well characterized species, some of them rather common 

 and of wide distribution. 



