TURBO. 35$ 



three tuberculated spirals, one on the posterior margin, and one on each of the 

 carina? ; the tubercles of the first and second spiral are connected across the 

 sloping part of the whorl by axial costse. Base rather inclined to be flat, and 

 ornamented with four spirals which are finely granulated, except the last, 

 surrounding the circular margin of the umbilicus, where the tuberculations are 

 again larger. The umbilicus is rather wide, and the aperture inclined to be 

 circular, but the indications are not clear. 



Apparently related to the more depressed section of M. Lyelli, but differing 

 considerably in the ornamentation and shape of the whorls. There is one specimen 

 in the Sharp Collection at the British Museum, most probably from Ponton or 

 Barnack. A second specimen in my own Collection already shows some difference. 

 No others have come under my notice. 



294 Turbo " spathioa." Plate XXX, fig. 5. 



Description .- 



Height ..... 4*5 mm. 



Width . . . . .5 mm. 



Shell conical, umbilicated, spire elevated, apex obtuse, number of whorls five. 

 To a certain extent this form reminds one of Turbo delphinuloides, d'Arch. (op. cit., 

 p. 379, pi. xxix, figs. 3 a — c). Ours is a smaller and more conical shell than 

 d'Archiac's species, but the angular character of the whorls and the thick radial 

 costas are points of resemblance. The base is rounded and smooth (radial lines 

 alone being visible) — a feature which at once separates M. " spathica " from 

 M. Lyelli and its relatives. 



Two specimens are known to me, both being from the Lincolnshire Limestone, 

 precise locality unknown — probably Ponton, Barnack, or Weldon. 



295. Turbo Hamftonensis, Morris and Lycett, 1851, Inferior Oolite variety, 



Plate XXIX, figs. 19 and 20. 



1851. Tuebo Hamptonensis, Morris and lycett. G-reat. Ool. Moll., pt. 1, p. 64,. 



pi. ix, fig. 30. 

 Cf. also — Buetonensis, Lycett. Supplement, p. 100, pi. xlv, fig. 15. 



— (Delphhstula) fttniculatus, Phil., vars. Hudleston, G-eol. Mag., 



dec. 3, vol. ii, p. 54, pi. ii, figs. 7 and 8. 



