104 BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



437 to 1,505 fathoms. In temperature there is data but for three 

 stations, 437 fathoms off Japan, 39.8° F. ; 1 ,505 fathoms also off Japan, 

 35.7° F.; and 1,379 fathoms off the Galapagos, 36.4° F. In general, 

 this species seems to have a tropical distribution running up to 

 southern Japan. 



Genus SIPHOGENERINA Schlumberger, 1883. 



Sagrina Parker and Jones (not Sagrina d'Orbigny), Philos. Trans., vol. 155, 1865, 



p. 363. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 580. 

 Dimorphina Schwager (not Dimorphina d'Orbigny), Novara Exped., Geol. 



Theil., vol. 2, 1866, p. 251. 

 Siphogenerina Schlumberger [type, S. raphanus (Parker and Jones), Uvigerina 



(Sagrina) raphanus Parker and Jones], Feuille des Jeunes Naturalistes, ann. 



13, 1883, p. 117. 



Description. — Test elongate, composed at least in the microspheric 

 form of a series of chambers arranged tri- or biserially, followed by a 

 later uniserial development; walls hyaline and perforate, aperture in 

 the uniserial portion central and terminal, usually with an elongated 

 neck and flaring lip ; interior of the chamber with a tubular connection 

 running from the base of the apertural neck to the lip of the aperture 

 below; wall smooth or ornamented by costse, pits, etc. 



This genus is evidently closely related to Uvigerina, but seems to 

 be distinct in its uniserial development, which in Siphogenerina 

 becomes the major portion. In the megalospheric form the uniserial 

 condition is taken on much earlier than in the microspheric form. 



Both genera, Sagrina and Dimorphina, as used by d'Orbigny, 

 undoubtedly belong to the Textulariidse, and are not available for use 

 here even as amended by Parker and Jones. Therefore the generic 

 name Siphogenerina of Schlumberger is the next available name and 

 is here used. 



SIPHOGENERINA COLUMELLARIS (H. B. Brady). 

 Plate 47, figs. 2, 3. 



Sagrina columellaris H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, 1881, p. 64 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 581, pi. 75, figs. 15-17. — Chap 

 man, Proc. Zool. Soc. London, 1895, p. 36. — Fornasini, Mem. Accad. Sci. 1st 

 Bologna, ser. 5, vol. 8, 1900, p. 391, fig. 41. — Millett, Journ. Roy. Micr. Soc. 

 1903, p. 270, pi. 5, figs. 10, 11.— Bagg, Proc. U. S. Nat. Mus., vol. 34, 1908, p 

 151. 



Siphogenerina columellaris Egger, Abh. k6n. bay. Akad. Wiss. Munchen, CI 

 ii, vol. 18, 1893, p. 316, pi. 9, figs. 28, 31, 33; vol. 21, 1899, p. 134, pi. 16, figs 

 20, 21. — Silvestri, Atti Pont. Accad. Nuovi Lincei, ann. 55, 1902, p. 1 

 figs. 1, 2. 



Siphogenerina glabra Schlumberger, Feuille des Jeunes Naturalistes, ann. 13, 

 1883, p. 118, pi. 3, fig., 1. 



Description. — Test elongate, subcylindrical, somewhat tapering, 

 straight or very slightly curved; chambers comparatively few; those 



