408 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



should have priority. It is one of the most unfortunate choices of 

 Brady, made in the Challenger Report, which has been blindly 

 followed by later writers. 



As elsewhere in the tropics this species is common in the Philip- 

 pines, especially in shallow water. The stations range in depth from 

 10 to 305 fathoms (18 to 558 metere), the average being close to 90 

 fathoms (165 meters). It is most common at the shallower- water 

 stations. It is most frequent in the southern part of the Archi- 

 pelago about the shores of the Sulu Sea and occurs at one station in 

 Sibuko Bay, Borneo. 



Spiroloculina antillarum — Material examined. 



SPIROLOCULINA ANTILLARUM d'Orbigny, var. ANGULATA Cnshman. 



Plate 81, figs. 5a, 6. 



Spiroloculina grata H. B. Bradt (part), Rep. Voy. Challenger, Zoology, vol.9, 



1884, pi. 10, figs. 22, 23. 

 Spiroloculina nitida (striate variety) Millett, Joum. Roy. Micr. See, 1898, p. 



266. 

 Spiroloculina grata, var. angulata Cushman, Bull. 71, IT. S. Nat. Mue., pt. 6, 



1917, p. 36, pi. 7, fig. 5. 



This variety differs from the typical form in having the chambers 

 angular instead of circular in transverse section, and the costae 

 parallel to the peripheral margin of the chamber instead of oblique, 

 in extreme forms with the periphery carinate. 



The type specimen of the variety is from Cebu, Philippines. It 

 was noted at two other stations — D5160, in 12 fathoms (22 meters), 

 Tawi Tawi Group, Sulu Archipelago, and D5218, in 20 fathoms (37 

 meters), between Burias and Luzon. 



It is widely distributed and with the tj^Dical is found in shallow, 

 tropical waters. 



