126 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



Cristellaria italica — material examined. 



CRISTELLARIA LATIFRONS H. B. Brady. 



Cristellaria latifrons H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 544, pi. 68, fig. 19 ; pi. 113, figs, 11a, &.— Flint, Rep. U. S. Nat. 

 Mus., 1897 (1899), p. 316, pi. 63, fig. 3.— Chapman, Trans. N. Zealand 

 Inst., vol. 38, 1905, p. 97. — Mestayer, Trans. N. Zealand Inst., vol. 48, 

 1916, p. 129.— SiDEBOTTOM (?), Joum. Roy. Micr. Soc, 1918, p. 140.— 

 CusHMAN, Proc. U. S. Nat. Mus., vol. 56, 1919, p. 617 ; Bull. 100. U. S. 

 Nat. ;Mus., vol. 4, 1921, p. 254. 



Description. — Test elongate, generally triangular in transverse 

 section; chambers comparatively few,, periphery carinate; sutures 

 distinct, curved, very slightly if at all depressed; apertural face of 

 the last-formed chamber truncate, reaching from the apertural end 

 of the test nearly to the initial end; wall smooth; aperture radiate, 

 terminal. 



Length up to 1.50 mm. 



Distribution. — Brady described this species from two Challenger 

 stations, one off the western coast of New Zealand, 275 fathoms (503 

 meters) , and the other in the Atlantic, off Culebra Island, West 

 Indies, 390 fathoms (713 meters). Apparently the only other At- 

 lantic records are those given by Flint, off Careysfort Light, off 

 Southern Florida, in 60 fathoms (110 meters), and Albatross sta- 

 tion D2377, in the northern part of the Gulf of Mexico, in 210 

 fathoms (384 meters). The other records are from the Indo-Pacific, 

 especially the area of Australia and New Zealand, with a few records 

 which I have given from the Philippines. I have had Atlantic speci- 

 mens from three stations, one in the northern part of the Gulf of 

 Mexico and two off the eastern coast of the United States. In the 

 Summary of Results of the Challenger Expedition the species is 

 recorded off Bermuda. Therefore there are either two or more 

 species, one in the western Atlantic, the other in the Indo-Paciflc, 

 or else a single widely spread species covering these two regions. 



