464 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



TRILOCULINA RUPERTIANA (H. B. Brady). 



Plate 93, figs. 2a-e. 



Miliolina rupertinna H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 46; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 178, pi. 7, tigs. 7-12.— Millett, 

 Journ. Roy. Mi(;r. Soc, 1898, p. 269, pi. 6, fig. 13.— Dakin, Ceylon Pearl-Oyster 

 Fisheries, Suppl. Rep., pt. 5, 1906, p. 230. — Hekon-Ali.en and Earland, 

 Trans. Zool. Soc. London, vol. 20, 1915, p. 565. 



The only material of this species is a very fine large specimen, 3 

 mm. in length, from the station D5134, Sulu Aix-hipelago, near Basilan 

 Island, in 25 fathoms (46 meters) . Millett records his material from 

 the Malay region at several stations, but in few numbers. The Chal- 

 lenger records include several stations about the islands on the south 

 shores of New Guinea, and west of Torres Strait in 6 to 28 fathoms 

 (11 to 51 mieters), '^and even here the species is very rare." 



Other records given by Brady are the northwest coast of Ceylon, 

 2 fathoms (4 meters), north of Suez, 15 to 20 fathoms (27 to 37 me- 

 ters), and in shore sands, near Tamatave, on the east coast of Mada- 

 gascar. At the last station it was plentiful. 



Heron-Allen and Earland record it from the Kerimba Archipelago, 

 and note that it is ''extremely common at Perim in the Red Sea," 

 and that it also occurs on the Queensland coast. Dakin gives it as 

 ''frequent off Ceylon." 



From the records it is evident the species is more characteristic of 

 the Indian Ocean and the coast of Africa than in the Pacific part of 

 this region, and is evidently most common in very shallow water. 

 It resembles in its highly specialized ornamentation certain of the 

 Eocene species of western Europe and North America. 



TRELOCUHNA TORTUOSA, new species. 



Quinqueloculina agglutinans Cushman (not d'Orbigny), Bull. 71, U. S. Nat. Mua., 

 pt. 6, 1917, p. 42, pi. 9, fig. 1. 



Description. — Test triloculine, in the adult condition elongate, 

 slender, the chambers somewhat twisted; walls made of coarse frag- 

 ments on the exterior; peripheral end produced into a cylindrical 

 neck, usually smooth; aperture circular; lip thin, slightly expanded, 

 with a slender bifid tooth. 



Length 1 to 1.1 mm. 



Distribution. — Type specimen (Cat. No. 13622, U.S.N.M.) from 

 Abatross station D5192, off northern Cebu, in 32 fathoms (59 meters). 



