392 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



CORNUSPIRA CARINATA (CoeU). 



Plate 77, fig. 6. 



Operculina carinata Costa, Atti. Accad. Pont., vol. 7, 1856, p. 209, pi. 17, figs. 15, 



a, b. 

 Cornxispira carinata Seouenza, Atti. Accad. Gioenia di Sci. Nat., vol. 18, 1862, 



p. 93.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 201, pi. 



11, figs. 4a, b. — ^Egoer, Abh. kon. bay. Akad. Wies. Miinchen, CI. II, vol. 18, 



1893, p. 247, pi. 3, figs. 16, 17.— Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 11. 



Description. — Test close-coiled, not flaring, increasing regularly in 

 diameter; tube somewhat compressed laterally, the sides convex; pe- 

 ripheral margin with a thin but sharply defined narrow keel; surface 

 smooth, aperture broadly elliptical. 



Diameter up to 3 mm. 



This is not a common species in the Pacific from the available 

 records, yet its occurrence in the Philippine region at several stations 

 with the records from off Raine Island, Torres Strait, 155 fathoms 

 (283 meters), rare (Brady), and off the east coast of Australia in 465 

 fathoms (850 meters) (Sidebottom), show that it is well distributed 

 in the Indo-Pacific. Egger recorded it from western Australia, from 

 Mauritius, and from near New Amsterdam, extending the distribu- 

 tion westward across the Indian Ocean. 



In the Albatross Philippine dredgings there are records from ten 



stations, ranging in depth from 297 to 890 fathoms (543 to 1,628 



meters). These are off Baylayan Bay; Sogod Bay, southern Leyte; 



off northwestern Panay; west coast of Luzon; off northern Mindanao; 



north of Tawi Tawi; and to the southward off Darvel Bay and Sibuko 



Bay, Borneo. 



Comuspira carinata — Material examined. 



CORNUSPIRA CRASSISEPTA H. B. Brady. 



Plate 84, fig. 1. 



Cornuspira crassisepta H. B. Brady, Proc. Roy. Soc. Edinburgh, vol. 11, 1882, 

 p. 714; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 202, pi. 113, fig. 20.— 

 HowcHiN, Trans. Roy. Soc. South Australia, vol. 12, 1889, p. 4.— Egger, 

 Abh. kon. Akad. Wise. Miinchen, CI. II, vol. 18, 1893, p. 246, pi. 3, fig. 22.— 

 Chapman, Journ. I.inn. Soc, Zoology, vol. 30, 1907, p. 22, pi. 2, fig. 45; p. 399. 



