FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 303 



These records indicate that this variety is widely distributed in 

 the Indo-Pacific region. 



Spirillina limbata, var. tuberculo-limbata — Material examined. 



Subfamily Rotalinae. 



Genus PATELLINA Williamson, 1858. 



PATELLINA CORRUGATA Williamson. 



Patellina corrugata Williamson, Recent Foraminifera of Great Britain, 1858, p. 46 

 pi. 3, figs. 86-89.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p.* 

 634, pi. 86, figs. 1-7.— CusHMAK, Bull. 71, U. S. Nat. Mus., pt. 5, 1915, p. 9, 

 pi. 7, fig. 1. ^ 



A single specimen of this species was found at Albatross station, 

 D5551, in 193 fathoms (353 meters), bottom temperature 53.3° F. 

 (11.8° C), near Jolo Island. This is the only station at which the 

 species was noted in all the abundant material from the Philippine 

 Expedition, and it seems to be decidedly rare in this region. The 

 Challenger did not obtain the species from the Philippine stations 

 dredged during that expedition. Millett records it as "rather 

 scarce" in the Malay Archipelago. The only records for the North 

 Pacific outside this region are two records of a single specimen 

 from each station from Laysan and Chatham islands, recorded by 

 Rhumbler. 



The single Philippine specimen was a very typical and well-devel- 

 oped one. 



Patellina corrugata — Material examined. 



Genus DISCORBIS Lamarck, 1804. 



This genus is one which is either in a state of flux with a few very 

 variable species or else is represented by many species. Heron- 

 Allen and Earland have given much attention to this problem in 



