066 MESSES. E. HEEON-ALLEN AND A. EAELAND ON THE 



1 Station. 



The record of this species depends upon two specimens from Stn. 11 which are far 

 removed from the normal type of Terquem. They may be compared with the 

 specimens figured by Sidebottom (1913), in which the faces of the test are slightly 

 convex and the two keels slope towards their edges. It seems not improbable 

 from the appearance of one of the specimens that in the perfect shell these two 

 converging keels were united by a marginal rim which .enclosed a hollow channel 

 round the body of the test. 



278. Lagena rizzae (Seguenza). 



Fissurina rizzce Seguenza, 1862, FMMM. p. 7.2, pi. ii. fig. 50. 

 Lagena rizzce Gough, 1906, PLL. p. 4, pi. i. fig. 3. 



„ Heron-Allen & Earland, 1913, CI. p. 89, pi. vii. fig. 9. 

 „ quadrata, var. y-izzce Cushmau, 1910, etc., FNP. 1913, p. 35, pi. xix. fig. 4. 



2 Stations. 



A typical example at each Stn. 



279. Lagena orbignyana (Seguenza), 



Fissurina orbignyana Seguenza, 1862, FMMM. p. 66, pi. ii. figs. 25, 26. 

 Lagena orbignyana Brady, 1884, FC. p. 484, pi. lix. figs. 1, 18, .24-.26 ; winged var. fig. 20. 

 „ Brady, Parker, & Jones, 1888, AB. p. 22.2, pi. xiiv. fig. 20. 



Egger, 1893, FG. p. 333, pi. x, figs. 89-91. 

 Flint, 1899, RFA. p. 308, pi. liv. fig. 4. 

 „ „ Cushman, 1910, etc., FNP. 1913, p. 43, pi. xix. fig. 1. 



14 Stations. 



Occurs at nearly every Stn., ranging from rare to common. There is no great 

 A-ariation, excepting in that at many Stns., notably 1, 10, 11, 12, and \'K, many of the 

 individuals show minute spots in the substance of the shell-wall which, under a high 

 power, prove to be tiny lacunae. These specimens form a connecting-link between 

 L. orbignyana and L. lacunata Burrows & Holland. At Stn. 1, where the species 

 was very common, a number of trigonal specimens were observed. At Stns. 4 and S 

 the variety variabilis Wright, in which the basal portion of the test is ornamented 

 with a few costse, occurred, and at Stn. 12 a single specimen which was very near the 

 variety walleriana Wright was observed. 



280. Lagena orbignyana, var. walleriana J. Wright. (Pi. L. figs. 31-36.) 



Lagena orbignyana, var. walleriana Wright, 1886, SWI. p. 611; and 1891, SVVI. p. 481, pi. xx. 



fig. 8. 4 



Millett, 1898, etc., FM. 1901, p. 627, pi. xiv. fig. 19. 

 „ „ „ „ Heron-Allen & Earland, 1908, etc., SB. 1911, p. 3.20. 



Sidebottom, 1910, RFBP. p. 19, pi. ii. fig. 15. 



