ADMETB (BABYLONELLA) SUBANGULOSA. 409 



Sub-genus BABYLONELLA, Conrad, 1865. 

 Admete (Babylonella) subangulosa (S. V. Wood). 



1842-48. Cancellaria subangulosa, S. V. Wood, Ann. Mag. Nat. Hist. [1], vol. ix, p. 538, 1842 ; Mon. 



Crag Moll., pt. i, p. 66, pi. vii, fig. 20, 1848. 

 1871. Cancellaria subangulosa, Jeffreys in Prestwich, Quart. Journ. Geol. Soc, vol. xxvii, p. 142. 

 1890. Cancellaria subangulosa, C. Reid, Plioe. Dep. Brit., p. 240. 

 1899. Admete (Babylonella) subangulosa, Cossmann, Ess. Paleoconch. compar., vol. iii, p. 36. 



Specific Characters. — Shell minute, ovato-fusiforra ; whorls 5 — 6, slightly con- 

 vex, obtusely angulate below the suture, the last much the largest; spire elevated, 

 regularly tapering; apex acute; suture rather deep; ornamented by numerous 

 very fine and indistinct costae, intersected by minute spiral stria? ; mouth ovate, 

 angulated |by the keel; outer lip thin; inner lip reflected; canal very short; 

 umbilicus small, open ; 3 minute inconspicuous folds on the columella. 



Dimensions. — L. 6 mm. B. 2 mm. 



Distribution. — Not known living (?). 



Fossil : Coralline Crag : Sutton. 



Remarks. — This species is very rare in the English Crag, a few specimens only 

 having been obtained from the Coralline horizon at Sutton. Messrs. Dautzenberg 

 and Fischer report an angulated variety of A. viridida dredged off the Norwegian 

 coast at a depth of 440 m., which they consider the equivalent of our shell, and 

 Jeffreys states (op. cit.) that the latter has been obtained in the West European 

 region, though without giving any particulars. His views as to the identification 

 of our Crag shells with recent species, however, have not been always accepted. 



Unfortunately Wood's specific name of subangulosa was adopted by von Koenen 

 and by Speyer for a north German Oligocene fossil, and in this they have been 

 followed by other Continental authorities, the latter form being grouped with C. 

 pusilla, Phil., G. Nysfi, Homes, G. miuuta, Braun, and G occulta, Beyr., all 

 characteristic forms of the Oligocene of central Europe. The figures given by the 

 authors referred to differ so materially from the type forms of the Crag A. sub- 

 angulosa that, apart from the improbability of the latter being identical with an 

 Oligocene species, I am more than doubtful whether they are the same. M. Coss- 

 mann, moreover, is of this opinion. Speaking of von Koenen's Oligocene G. sub- 

 angulosa, he says it is " evidemment distincte." 1 



Admete (Bablyonella) Reedii (A. Bell). 



1870. Admete Reedii, A. Bell, Ann. Mag. Nat. Hist. [4], vol. iv, p. 214. 



1872. Cancellaria subangulosa, S. V. Wood, Mon. Crag Moll., 1st Suppl., pt. i, p. 47, pi. iii, fig. 27. 



1872. Admete Beedi, A. and E. Bell, Proc. Geol. Assoc, vol. ii, p. 203. 



1 Op. cit., vol. iii, p. 36. 



