42 



BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



HAPLOPHRAGMOIDES SCITULUM (H. B. Brady). 



Plate 8, fi<>:. 2. 

 Jlnplophmymiam srUiUiitn II. B. Brady, Quart. Journ. Micr. Sci.. vol. 21, 1881, 

 ^ p. 50; Proc. Roy. Soc. iOdinhurgh, vol. 11. 1882, p. 711; Rep. Voy. Challenger, 



Zoology, vol. 9, 1884, p. 308. pi. :^4, figs. 11-13.— Chapman, Proc. '/ool. Poc. 

 London. 1895. p. 16.— Flint, Rep. U S. Nat. M> s . 1897 (1899). p. 27(), pi. 

 20. /;g. 2. 

 Ilaplophrajirvyides scituluin Ckshman Bull. 71, U. S. Nat. Mus . pt. 1. 1910, p. lO:?, 

 fig. 153-155.— Pearcey, Trars. Roy. Soc. Edinburgh, vol. 49, 1914. p. 1008. 



Description. — Test planospiral, somewhat compressed, excavated 

 ill the umhihcal reojion, composed of ahout three coils, ])artially 

 invohite, periphery ])roadlY rounded, not lo})ulated; chambers 8-11 

 in the Lnst-formed coil, broad and low, sutures distinct but only 

 slightly depressed; wall firmly cemented, arenaceous, smoothly 

 finished; aperture a simple curved slit at the base of the final cham- 

 ber; color of the test various shades of brown, the last formed 

 chamber and sometimes the whole test gray. 



Diameter 0.75-1 mm. 



Distrihution. — There are numerous records for the Atlantic, the 

 Challenger obtaining it at several stations from the Faroe Channel to 

 the Cape Verde Islands, thence across to the West Indies, and in the 

 South Atlantic olf Buenos Aires (Brady). The Scotia obtained it at 

 four stations in the South Atlantic and Antarctic in 1,410-2,500 

 fathoms (2,579-4,572 meters) (Pearcey). Flint records it from off 

 the northeastern coast of the United States and south of Cuba. 

 From the Albatross material I have examined it has been found at 

 16 stations, 3 in the Gulf of Mexico, where it was rare, and the 

 others off the northeastern coast of the United States. It was 

 not common at any station. 



The species seems to be well characterized, the umbilicate form 

 with the truncate inner margins, the regular curve of the test, 

 numerous even chambers nearly flush with one another will serve to 



identify it. 



Hap loph rag moides acitidn m — material exam ined. 



