48 BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



produced; aperture nearly circular, with a smooth, slightly raised lip, 

 tooth simple, not prominent. 



Length, about 1 mm. 

 Distribution. — The only material referable to this species is from 

 Nero station 1158 in 1,584 fathoms, between Yokohama and Guam. 



QUINQUELOCULINA BICORNIS (Walker and Jacob). 

 Plate 13, fig. 2. 



Serpula Mcornis Walker and Jacob, Adam's Essays, Kanmacher's Ed., 1798, 



p. 633, pi. 14, fig. 2. 

 Miliolina bicornis Williamson, Rec. Foram. Great Britain, 1858, p. 87, pi. 7, 



figs. 190-192.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 



p. 171. 



Description. — Test about one and one-half times as long as broad, 

 chambers much the broadest at the basal end, tapering gradually to the 

 periphery, chambers with three faces, the peripheral usually flattened 

 or slightly concave, the sides flattened or slightly concave, ornamented 

 with several prominent longitudinal costae, those separating the pe- 

 ripheral and side faces being particularly well developed; basal portion 

 of the chamber usually projecting somewhat and rounded; apertural 

 end produced into a short subcylindrical neck; aperture circular, 

 with a slight lip and a single tooth. 



Length, up to 2 mm. 



Distribution. — Brady records this species from off the coral reefs 

 of Honolulu, Hawaiian Islands. The only material I have had was 

 from shallow water in Hongkong Harbor. 



QUINQUELOCULINA BICORNIS (Walker and Jacob), var. ELEGANS Williamson. 



Miliolina bicornis, var. elegans Williamson, Rec. Foram. Great Britain, 1858, 

 p. 88, pi. 7, fig. 195. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 171, pi. 6, figs. 9, 11, 12.— Bagg, Proc. U. S. Nat. Mus., vol. 34, 

 1908, p. 120. 



This more slender variety is recorded in Bagg's paper without 

 station from the Hawaiian Islands. An examination of his material 

 shows a specimen of this form from Albatross station H4694, but the 

 specimen is too broken to permit of figuring. 



QUINQUELOCULINA DISPARILIS d'Orbigny. 



Plate 14, fig. 1. 



Quinqueloculina disparilis d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 302, No. 

 21. — Schlumberger, Mem. Soc. Zool. France, vol. 6, 1893, p. 212, pi. 2, 

 figs. 55-57, figs. 21, 22 in text. 



Description. — Test somewhat longer than broad, chambers very 

 distinct, polygonal, consisting of an outer peripheral face which is 

 flattened or slightly rounded and ornamented with several longi- 

 tudinal costae, the side faces meeting the peripheral almost at right 



