FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 307 

 Discorbis rugosa— Material examined. 



DISCORBIS, species (?). 



Plate 60, figs. la-c. 



Discorbina saulcii H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 

 653, pi. 91, figa. 6a-c (not Rosalina saulcyi d'Orhigny, 1839). 



It is very difficult to understand how Brady could have referred 

 his material figured in the Challenger Report to the species figured by 

 d'Orbigny. Brady refers to this material from the Gulf of Scala 

 Nova, off Smyrna, and Challenger material from off Tahiti. 



Sidebottora has figured material from the Bay of Palermo, Sicily ''^ 

 which he refers to this species. He mentions (p. 26) that the ma- 

 terial from Sicily agrees with material he has from the coast of 

 Algiers in 80 fathoms (146 meters). He also mentions the Bay of 

 Eleusis, Greece. 



As figured, the Mediterranean material has no definite carinate 

 border, is not so rounded as the Challenger figure and has a different 

 appearance on the umbilical side. 



Therefore, as the matter stands, I would venture to predict that 

 the true D. saulcyi of d'Orbigny may be confined to the west coast of 

 South America and adjacent regions, while there are two other dis- 

 tinct species — that figured by Sidebottom, probably a Mediterran- 

 ean one, widely spread in that region; and a third — that figured by 

 Brady, which is characteristic of the Indo-Pacific. To which of 

 these two the material referred by Heron-Allen and Earland to this 

 species from the east coast of Africa may belong ^^ it would be inter- 

 esting to know. 



This species is best developed at Albatross D5236, in 494 fathoms 

 (903 meters), bottom temperature 41.2° F. (5.1° C), off Mindanao, 

 and Do201 in 554 fathoms (1,012 meters), Sogod Bay, southern 

 Leyte. It is worth noting that the Challenger material off Tahiti was 

 from depths of 420 and 620 fathoms (768 and 1,134 meters), while 

 the Mediterranean records are from less than 100 fathoms (183 

 meters). 



» Mem. and Proc. Manchester Lit. and Philos. Soc, vol. 51 (No. 16), 1910, pi. 3, figs, lla-c. 

 n Trans. Zool. Soc. London, vol 20, 1915, p. 696. 



