7i> "TERRA NOVA" EXPEDITION. 



finer ones below them ; the stronger line, like those on the spire, are more or less 

 nodose by being crossed by rather faintly developed longitudinal plicae, about fifteen 

 on the penultimate volution ; aperture pyriform ; columella arcuate above, oblique 

 anteriorly ; canal oblique, recurved. 



Length, 7 '5 mm. ; diameter, 3*5. Aperture, 3 '5 long. 



Station 194: 180-200 fathoms. 



In general features rather like P. miunl u*, but having less pronounced cancellation, 

 a different apex, and finer spirals on the lower part of the body-whorl. 



33. Pareuthria inii<><;'it?< (Smith). 



Theslia innocens?, Smith, "Discovery" Gastropoda, p. 4, pi. I, figs. I-!B (1907); Hedley, 



Brit. Antarct. Exped. 1907-9, Biol., vol. II, Mollusca, p. 6. 

 Pareuthria innocens: Thiele, Deutsche Siidpolar-Exped., vol. XIII, p. "212, pi. XIII, fig. 23 ; 



pi. XVI, fig. 22, radula. 



Stations 316, 331 : 190-250 fathoms. 



This species was originally doubtfully assigned to the genus T/t<'xI>t<i, but the 

 study of the radula by Thiele shows that it is practically the same as that of 

 Pareuthria. 



34. Neobueeinum at fun!, Smith. 



Neobueeinum eatoni, Smith, 1875. For full synonymy see Lamy, Deuxieme Exped. Antarct. 

 Franc., Gastropodes, p. 5 (1911); Hedley, Brit. Antarct. Exped. 1907-9, Biol., vol. II, 

 Mollusca, p. G, pi. I, figs. 11-12. 



Station 340 : 160 fathoms. 



Although only one dead shell was brought home by the expedition, it is said 

 to be " abundant in five to sixty fathoms " (Hedley). 



35. Neobuccinum teui-nun, Smith. 



Neobueeinum tencrum, Smith, " Discovery" Gastropoda, p. 2, pi. I, figs. 2, 2A (1907). 

 Probuccinum tencrum: Thiele, Deutsche Siidpolar-Exped., vol. XIII, p. 211, pi. XIII, fig. 21, 

 shell, 21 A, operculum ; pi. XVI, tig. 21, radula. 



Stations 331, 340, 356 : 50-250 fathoms. 



Three specimens rather older arid more thickened than the type, and consequently 

 hardly pellucid. The very slight modification in the radula, form of the shell and 

 operculum does not seem sufficient to warrant generic distinction. 



30. Volutharpa cluncnti (Lamy). 



Buccinum clmn-oti, Lamy, Deuxiemo Exped. Antarct. Franc,., Gastropodes, p. 4, pi. I, figs. 1-2 

 (1911). 



Station 194: 180-200 fathoms. 



Two specimens, the larger much broken, 22 mm. in length ; the small one, 

 r\ idcutly young, only 13. Both have the spire more or less eroded, and even more 

 obtuse than as represented by Lamy's fig. I. 



