312 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Planorbulina acervalis. — Material examined. 



Genus TRUNCATULINA d'Orbigny, 1826. 



TRUNCATULINA REFULGENS (Montfort). 



Plate 63, figs. lo-c. 

 "Hammonia Balanus seu Balanoidea" Soldani, Testaceographia, vol. 1, pt. 1, 



1789, p. 58, pi. 46, figs, nn, oo. 

 Cibicides refulgens Montfort, Conch. Sj^st., vol. 1, 1808, p. 122. 

 Tmncatulina refulgens (I'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 279, pi. 13, 



figs. 8-11; Modules, 1826, No. 77.— H. B. Brady, Rep. Voy. Challenger, Zoology, 



vol. 9, 1884, p. 659, pi. 92, figs. 7-9.— Cushman, Bull. 71, U. S. Nat. Mus., 



pt. 5, 1915, p. 30, pi. 12, fig. 2, text fig. 33. 



Typical specimens of this species were obtained in material from 

 numerous stations, ranging in depth from 32 to 901 fathoms (59 to 

 1,648 meters), the average depth being 268 fathoms (491 meters); 

 bottom temperatures range from 38.2° to 75.7° F. (3.4° to 24.2° C), 

 the average being 54.1° F. (12.2° C). 



These stations cover a wide area in the Ai-chipelago — off southern 

 Luzon; off Jolo; off Romblon; off northern Cebu; Sogod Bay, 

 southern Leyte; between Burias and Luzon; east coast of Mindanao; 

 Verde Island Passage; between Masbate and Leyte; between Negros 

 and Siquijor; north of Tawi Tawi and outside to the southward 

 off Darvel Bay, Borneo; between Gillolo and Makyan Islands; and 

 in Macassar Strait. 



Truncatulina refulgens — Material examined. 



