70 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



Distribution. — As G. siphonella, Brady has recorded this species 

 from three Challenger stations in the North Pacific, in from 2,100- 

 3,950 fathoms. I have noted the species but once, in 2,141 fathoms, 

 Nero station 1293, between Yokohama and Guam. 



An examination of the original description of 

 Gaudryina siphonella Reuss, a and especially the fig- 

 ures, shows that the recent species described here is 

 very different from that fossil. Fig. 42 of Reuss 

 shows a test with five vertical rows of chambers, 

 and need not be further considered here. Of the 

 others, each has the final chamber very convex and 

 extending much higher on the outer side than on 

 any other part, and the aperture at the end of a small, 

 much lower projection. This curious form occurs in 

 both figs. 40 and 41 and is noted in the description. 

 The recent species is very different, the apertural 

 portion forming the highest part of 

 the chamber, which on its peripheral 

 portion is lower than elsewhere, while 

 the fossil species is highest there. 



Fig. lin. — Gaudry- 

 ina APIC'ULARIS. 

 X GO. a, FRONT 

 VIEW; b, APERTU- 

 RAL VIEW. 



GAUDRYINA PSEUDOFILIFORMIS, new name. 



Gaudryina filiformis H. B. Brady (not 

 G. filiformis Berthelin), Rep. Voy. 

 Challenger, Zoology, vol.9, 1884, p. 380, 

 pi. 46, figs, \2a-c. 



Description. — Test much elongate, 

 composed of numerous chambers; 

 early portion triserial with indistinct sutures; later 

 portion, including nearly the entire test, biserial with 

 the sutures deep and well marked; cross section ellip- 

 tical, showing some compression; walls arenaceous, but 

 usually smooth; aperture small, in adults back a little 

 way from the inner margin of the chamber, slightly 

 elongate, the edges thickened and raised to form a rim 

 about it, appearing nearly tooth-like in end view; 

 color gray. 



Length 1 mm. 



Distribution. — 67. filiformis has been recorded from 

 the North Pacific only once, by Bagg, at Albatross 

 station H4568, in 1,274 fathoms, off the Hawaiian 

 Islands. I have the species also from Albatross station H2923, in 

 392 fathoms, off the same islands. These are the only records for 

 the species in this area. 



Fig. 111.— Gau- 

 dryina pseudo- 

 filiformis. 



X 60. a, FRONT 



view; b, END 

 VIEW, SHOWING 

 OUTLINE AND 

 RIDGE ABOVE 

 THE APERTURE. 



aZeitschr. deutsch. geol. Ces., vol. :\, 1851, p. 78, pi. 5, figs. 40-42. 



