120 BULLETIN 100^ UNITED STATES NATIONAL MUSEUM. 



TEXTULARIA EXCAVATA Cushman. 



Plate 24, figs. 5a, b. 



Textularia excavata Cushman, Proc. U. S. Nat. Mus., vol. 44, 1913, p. 634, pi. 79, 

 fig. 5. 



Description. — ^Test rhomboid, composed of comparatively few 

 chambers, earl}^ portion with the sides angled, later chambers broadly 

 rounded at sides, chambers obliquely set, each forming an angle of 

 90° with the opposite chamber, distal portion of chamber thickened 

 and tending to roll back, giving an excavated appearance to the test, 

 outer face of last-formed chamber in adult broadly rounded and con- 

 vex; aperture at the base of the inner margin of the chamber; wall 

 composed of rather fine sand with a grayish-brown color, due partly 

 to the cement. 



Length up to 2 mm. in adult specimens. 



Type specimen. — Cat. No. 8503, U. S. N. M., from Albatross station 

 D5236, Pacific Ocean, east coast of Mindanao, 494 fathoms (903 

 meters). At this station the species was common. Its shape and 

 peculiar sculptured test will distinguish it from other species. 



This species has also been found at D5318, China Sea, vicinity of 

 Formosa, 340 fathoms (556 meters), and D5591, Sibuko Bay, Borneo, 

 260 fathoms (475 meters). Bottom temperatures were not recorded 

 at either of these stations. 



Textularia excavata — Material examined. 



TEXTULARIA TRANSVERSARIA H. B. Brady. 



Plate 22, figs. 2 a-c. 



Textularia transversaria H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 359, pi. 113, figs. 3-5. 



A few specimens which compare closely with Brady's species 

 occurred at D5572, north of Tawi Tawi, 334 fathoms (1,611 meters), 

 bottom temperature 52.3° F. (11.2'^ C). Brady's specimens were 

 from this same faunal area, off Raine Island, Torres Strait, 155 fath- 

 oms (283 meters), and off Kandavu, Fiji Islands, 255 fathoms (466 

 meters). 



