70 BULLETIN 161, UNITED STATES NATIONAL MUSEUM 



than planoconvex) test, and in their sutures being slightly more 

 curved. The outline of the test is rounded and lobulated rather than 

 squarish. In addition, this species seems never to develop as coarse 

 a granulation on the wall as does G. punctulata. 



GLOBOROTALIA CRASSAFORMIS (Galloway and Wissler) 



Globigerina crassaformis Galloway and Wissler, 1927, Journ. Paleont., vol. 1, 

 p. 41, pi. 7, fig. 12. 



Globorotalia crassaformis (Galloway and Wissler). — Parker, 1962, Micro- 

 paleontology, vol. 8, p. 235, pi. 4, figs. 17, 18, 20, 21. 



Pulvinulina crassa d'Orbigny, sp. — Brady, 1884, Rep. Voy. Challenger, Zoology, 

 vol. 9, p. 694, pi. 103, figs. 11, 12. 



Globorotalia punctulata (d'Orbigny). — Phleger, Parker, and Peirson, 1953, 

 Rep. Swedish Deep-Sea Exped., vol. 7, Sediment Cores, no. 1, p. 20, pi. 4, 

 figs. 8-12. 



This species apparently has a worldwide distribution although it 

 is never found abundantly. In the present material it is found in 

 about a quarter of the deep-water samples. 



Specimens exhibit considerable variation: from ones that are 

 compact and highly conical, as high as broad, with heavy encrusta- 

 tions of calcareous beading that obscure all perforations of the wall, 

 to ones that are thinner-walled and flatter, in which the perforations 

 are clearly visible on the smooth wall. Four chambers make up 

 the adult whorl, and the sutures on the ventral side are indented 

 deeply and are nearly straight. The periphery is deeply lobulated 

 on the flatter specimens but nearly squarish on the thick, compact 

 specimens, and the edge of the periphery is bluntly rounded and 

 not as sharply angled as in Globorotalia hirsuta. 



GLOBOROTALIA MENARDII (d'Orbigny) 



Plate 28, Figures 2, 4 



Rotalia menardii d'Orbigny, 1826, Ann. Sci. Nat., vol. 7, p. 273; Modeles, no. 10. 

 Pulvinulina menardii d'Orbigny, sp. — Brady, 1884, Rep. Voy. Challenger, 



Zoology, vol. 9, p. 690, pi. 103, figs. 1, 2. 

 Globorotalia menardii (d'Orbigny). — Bradshaw, 1959, Contr. Cushman Found. 



Foram. Res., vol. 10, p. 44, pi. 8, figs. 3, 4. 

 Rotalia menardii Parker, Jones, and Brady, 1865. — Banner and Blow, 1960, 



Contr. Cushman Found. Foram. Res., vol. 11, p. 31, pi. 6, fig. 2. 



This well-known species is not represented abundantly in the 

 present material, being found in relatively fewer samples than is 

 G. tumida, although commonly in some of them. 



The species is characteristically flat and compressed, in contrast 

 with Globorotalia tumida (Brady), with which it is associated and to 

 which it may be transitional morphologically, if not also biologically. 

 The present specimens tend to be more heavily limbate around the 

 periphery than is typical of this species, and the ventral sutures are 



