FOHA.MIXTFRRA— HERON-ALLEN AND EAULAXD. ir,0 



At Station 8 a few specimens exhibiting a lateral twist in the long axis of 

 tlie shell, combined with a certain duplication and overlapping of the wing at 

 tlie middle of the base, comparable with our L. iiKirginafa. var. fit<sa in its most 

 extreme development. The specimens may lie compared witli Silvestri s figure of 

 Fis.siin'iKi mdiata, ,Seg. (S. 1002. LMT. p. 145, figs. 20-22). l)ut Silvestri's figure has 

 little or no resemblance to Seguenza"s original (S. 1802, FMM.M. p. 70, pi, ii, 

 figs. 42. 43) which represents L. lagenoides of a normal type. Much more closely 

 allied to our specimens, and perhaps identical, is the form figured by Kymer 

 Jones (J. 1872. LJ8. p. 59, pi, xix, fig, 42) under tlie name L. vulgaris, 

 sub-var. spinoso-marginata. His figure is drawn from a broken specimen, liut the 

 shading appears to indicate the twist of the shell and the duplication of tlie 

 liasal keel, although he makes no r'eference to either feature in the text. 



348. Lagena lagenoides, var. nuda. Chapman. 



Larjcua htr/cuoiflci. var. in«la. Chajimnn. 1909, SNZ. ji. 338. ]>]. xv, fiij. 9. 



Stations 16, 18, 20, 



Excellent representative specimens from each Station. The shell-substance 

 in all cases is white and opaque, liut indicates no corrosion. The relationship 

 to L. lagenoides does not appear to be very clear except as regards the general 

 similarity of outline ; we should have lieen inclmed to regard it as more nearly 

 allied to L. bicarinata. Some of the specimens are feelily pedunculate. 



349. Lagena ornata (Williamson). 



Entosolenia marijinnta, var. oniain, Williamson 18.58 RFGB. ]). 11. I'l. i. fig-. 21. 

 Laf/ena ornata, Heron-Allen and Earland. 1913, f'T. )>. 88. ])1. vii. (11;. 8. 



Station 2. 



A single coarse, thick-shelled specimen. 



350. Lagena formosa, Schwager. 1^1. VI, figs. 24. 25. 



Ldf/eiia formosa, Scliwager, 1866, FKN. i). 206, pi. iv, figs. 19, a-f/, ])1. vii, fig. 1. 

 .Millett, 1898, etc., FM. 1901, p. 624, pi. -xiv, figs. 10-12. 



Sidebottom. 1912, etc., LSP. 1912. ].. 4U. jil. xi.x, figs. G-9 ; 1913. ]i. 191. 

 pi. xvii. figs. 3-8. 



Stations 27. 36. 



Very rare. Nearlv all tlie specimens resemble the type figured by Sidebottom 

 (1912, pi. xix, fig. 6). Init at Station 27 there is a specimen (PI. M, figs. 24, 25), which 

 probably represents his later figure (1913, pi. xvii, fig. 6) in the perfect condition. 

 The neck is very long, nearly equal to the length of the shell with an everted 

 lip. The central area is marked, as in Sidebottom's figure, and here the shell- 

 wall is apparently thickened. The tubules shown round the edge of Sidebottom's 

 figure are not indicated in our specimen, but the whole of the thick marginal edge, 

 which projects more than in Sidebottom's figure, is filled with dense, sponge-like 

 shell-structure. 



