362 DISCOVERY REPORTS 



D'Orbigny's name appears to have been entirely overlooked by subsequent authors as 

 we cannot trace any reference to it. Most unfortunately the specific name laevigata was 

 used by Reuss for a very different and ubiquitous species, and under the rules of priority 

 L. laevigata Reuss must in future be abandoned (see No. 210). 



170. Lagena compressa (d'Orbigny), 



OoUna compressa, d'Orbigny, 1839, FAM, p. 18, pi. v, figs, i, 2; 1846, FFV, p. 23, pi. xxi, 

 figs. 1,2. 



One station: 48. 



The species occurs at this station and almost certainly elsewhere. Having no very 

 distinctive features, it was not separated from L. marginata until the last moment and 

 after seeing the Type specimens in Paris. There are in Paris two separate Type tubes, one 

 labelled L. compressa, with reference to FAM, endorsed. This specimen is entirely de- 

 composed by acid degeneration of the glass, nothing but a chitinous film remaining, 

 which suggests L. orbignyana or L. bicarinata or some other of the multi-keeled forms. 



The other tube contains a single specimen, still in good preservation, of a turgid and 

 almost keelless fissurine Lagena of the L. marginata group. It has no very distinctive 

 features. D'Orbigny's figure exaggerates the keel — there is hardly any " keel" at all, but 

 rather a thickened marginal edge to the shell, which, at the base, has a tendency to divide 

 into two. It appears to have no specific value, but to be intermediate between L. margi- 

 nata — the keelless type — and our species L. revertens (No. 2t,S post), which, however, 

 has a pronounced neck, 



171. Lagena stewartii, Wright. 



Lagena stewartii, Wright, 1910-11, ECM, p. 12, pi. ii, fig. 8. 



Lagena stewartii, Heron-Allen and Earland, 1913, CI, p. 81, pi. vi, figs. 2, 3. 



Three stations: WS 88, 90, 245. 



Occasional specimens at these, and probably at other stations. Wright's specific name, 

 while probably having no zoological value, is useful for separating those specimens 

 which have usually been recorded as "compressed" L. globosa. They are to be found 

 wherever the type occurs. 



172. Lagena ovum (Ehrenberg). 



Miliola ovum, Ehrenberg, 1843, MMO, p. 166; 1854, M, pi. xxiii, fig. 2 (?); pi. xxvii, fig. i ; 



pi. xxix, fig. 45 (?); pi. xxxi, fig. 4. 



Lagena ovum, Brady, 1884, FC, p. 454, pi. Ivi, fig. 5. 



Lagena ovum, Heron-Allen and Earland, 1913, CI, p. 73, pi. vi, fig. i. 



Two stations: WS 80, 83. 



Good specimens at WS 83, where also what appears to be a compressed variety occurs. 

 Ehrenberg's figures are all, with the exceptions of pi. xxvii, fig. i, highly unsatisfactory, 

 but the species is well identified by its specific name. 



