158 DISCOVERY REPORTS 



375. Lagena orbignyana var. unicostata, Sidebottom. 



Lagena orbignyatia, var.n. unicostata, Sidebottom, 1912, etc., LSP, 1912, p. 417, pi. xix, fig. 22; 

 1913, p. 195. 



Three stations: 385, 386; WS 403. 



Two specimens at St. 385 identical with Sidebottom's fig. 22, but the single specimen 

 at WS 403 is more strongly developed, the three carinae being very broad and the 

 central costa equally strongly developed. A single poor specimen at St. 386. 



376. Lagena ovum (Ehrenberg) (F 172). 

 One station : WS 507 A. 



A single typical specimen only. 



377. Lagena palliolata,^ sp.n. (Plate VII, figs. 5, 6). 

 One station : 384. 



A single specimen from 3713 m. in the Drake Strait. 



The test is an oval flask with a long produced neck. A carina of moderate width 

 surrounds the flask and is continued up the sides of the neck, widening towards the 

 aperture and forming a hood enclosing the upper portion of the neck. The basal half of 

 the flask is ornamented with two concentric ridges. 



Length 0-28 mm.; greatest breadth near base 0-14 mm.; greatest thickness of flask 

 o-ii mm., and of hood 0-07 mm. 



This is a very distinctive form in the peculiar hood formed by an extension of the en- 

 circling carina. Such developments are not common and appear to be confined to deep- 

 water La^e««e. Galloway and Morrey (G. and M. 1929, LTE, p. 22, pi. ii, fig. 17) figure 

 a hooded form under the name Fissiirina orbignyana caribaea, which is not a bit like 

 Cushman's original description and figure of that variety (Lagena orbignyana (Seguenza) 

 var. caribaea, C. 1918, etc., FAO, 1923, p. 41, pi. vii, figs. 6-9). Cushman figures 

 another hooded form (C. 1932, etc., TPA, 1933, p. 35, pi. ix,fig. i) which he calls a trigonal 

 form of Lagena pulc/iella, Brady, but which does not suggest that very weak species. In its 

 other features L. paUiolata is suggestive of two different species. The carina investing the 

 neck and flask resembles L. marginata var. semimarginata (No. 369). The concentric 

 ridges on the flask recall the figures of L. orbignyana var. concentrica (S. 1912, etc., LSP, 

 1912, p. 417, pi. xix, fig. 23, and C. 1910, etc., FNP, 1913, p. 44, pi. xix, fig. 2) and of 

 L. orbignyana var. semiconcentrica (C. 1925, etc., LFR, 1933, p. 10, pi. i, fig. 22). 



378. Lagena protea. Chaster (F 206). 

 Two stations: 386; WS 468. 



A single excellent specimen at each station. They are both in very deep water in the 

 Drake Strait and outside the Antarctic convergence line. The species has already been 

 recorded from 200 fathoms in McMurdo Sound, Ross Sea (H.-A. and E., 1922, TN, 

 p. 153), and under the name L. hispidipholus, Pearcey, from 56 fathoms on the Burd- 

 wood Bank (P. 1914, SNA, p. 1020, pi. ii, figs. 11-13). 



379. Lagena pseudauriculata, sp.n. (Plate VII, figs. 7, 8). 



Two stations: 175; WS 482. 



1 paUiolatus= covAtd or hooded. 



