266 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



Uvigerina peregrina Cushman, var. bradyana Cushman 



Plate 34, Fig. 1 



Uvigerina peregrina Cushman, var. bradyana Cushman, Bull. 104, 

 U. S. Nat. Mus., pt. 4, 1923, p. 168, pi. 42, fig. 12; Bull. Scripps Instlt. 

 Oceanography, Tech. Sen, vol. 1, No. 10, 1927, p. 158, pi. 4, fig. 2.— 

 Cushman, Stewart and Stewart, Trans. San Diego Soc. Nat. Hist., 

 vol. 6, 1930, p. 69, pi. 5, fig. 12. — Cushman, Bull. Geol. Soc. Amer., vol. 

 47, 1936, p. 429, pi. 5, fig. 10. 



Variety differing from the typical form in the smaller, slenderer 

 form, the fewer and much lower costae, and the more finely punctate, 

 translucent, wall. 



Length 0.50-0.60 mm ; diameter 0.25-0.30 mm.. 



This, as well as the other varieties, shows a considerable range of 

 ornamentation with costae, serrate costae, and spines. 



This variety was described from off the northeastern coast of the 

 United States and has been recorded from late Tertiary core material 

 off the Atlantic coast, from the Pliocene of California, and from the 

 Pacific. 



The specimens have been compared with typical specimens from the 

 Atlantic and seem to be the same, although generally smaller. They are 

 from stations: Or. 10, 82, 667, 1097, 1105, 1106, 1135, 1150, 1178. 



Distribution. — The station records here include, off the coast of Ore- 

 gon, off California and in the harbor of Port Said in 13 to 175 fms. 



Uvigerina peregrina Cushman, var. curticosta (Cushman) 

 Plate 34, Fig. 2 



Uvigerina pigmea d'Orbigny, var. curticosta Cushman, Bull. Scripps 

 Instit. Oceanography, Tech. Sen, vol. 1, No. 10, 1927, p. 157, pi. 4, 

 fig. 1. — Cushman and Moyer, Contr. Cushman Lab. Foram. Res., vol. 6, 

 1930, p. 60. 



Variety differing from the typical form in the fewer costae, more 

 irregularly spaced, not usually aligned from chamber to chamber, some- 

 times slightly oblique to the axis of the test, lacking any spinosity. 



Length 0.50-1.00 mm; diameter 0.25-0.50 mm. 



This form was described from 800 fathoms, off Panama {Lydonia 

 Sta. 33), as a variety of U. pigmea d'Orbigny. It seems, however, to be 

 much more closely related to U. peregrina Cushman from off the eastern 

 United States and is here placed under that species. It has a great range 

 in size but maintains its ornamentation of high, discontinuous, rather 

 widely spaced costae. 



