74 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



chambers, large, distinct, with well-defined, depressed sutures; wall 



arenaceous, composed of a mixture of coarse and fine material, but 

 usually with a smooth exterior; aperture cir- 

 cular, often at the end of a short neck, usually 

 with a single valvular tooth; color light gray. 

 Length up to 5 mm. 



Distribution. — The only 

 previously recorded station 

 for this species is that given 

 by Bagg: Albatross station 

 D4000 in 104-213 fathoms, 

 off the Hawaiian Islands. 

 I have seen the species in 

 material from Nero station 

 2037, in 55 fathoms, and 

 2071, in 271 fathoms, both 

 in the vicinity of the Ha- 

 waiian Islands. 



There is much exterior 

 resemblance between this 

 species and Ha/plostiche du- 

 bia, but the specimens of 

 Clavulina bradyi having the 

 single valvular tooth or 

 sometimes none. Fig. 119 

 shows a specimen some- 

 what different from the 

 usual form shown in fig. 118. 

 It has a more distinctly 



roughened surface and a longer and more slender neck, but is 



associated with the species at the same station. 



CLAVULINA ANGULARIS d'Orbigny. 



Clavulina angularis d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 268, pi. 12, fig. 7. — 



H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 396, pi. 48, figs. 



22-24.— Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 37.— Flint, Ann. Rep. 



U. S. Nat. Mus., 1897 (1899), p. 289, pi. 36, fig. 2.— Millett, Journ. Roy. 



Micr. Soc, 1900, p. 13.— Chapman, Journ. Linn. Soc, Zool., vol. 30, 1907, 



]>. 29, pi. 4, figs. 68, 69 [70], [not 71-73].— Bagg, Proc. U. S. Nat, Mus., vol. 



34, 1908, p. 133. 

 Valvulina angularis Jones and Parker, Quart. Journ. Geol. Soc, vol. 16, 1860, 



p. 305. 

 Valvulina triangularis d'Orbigny, forma clavulina Goes, Kongl. Svensk. Yet. 



Akad. Handl., vol. 19, No. 4, p. 86, pi. 11, figs. 387-389. 



Description. — Test elongate, triangular in cross section, the early tri- 

 serial portion limited to a few chambers, followed by a few chambers 



Figs. 1 ls-119.— Clavulina bradyi. X 30. IIS, a, end 



VIEW, WITHOUT TOOTH; b, FRONT VIEW OF TYPICAL 

 SPECIMEN. 119, FRONT VIEW OF A PECULIARLY ROUGH- 

 ENED SPECIMEN. 



