148 EOCENE MOLLUSCA. 



the latter, however, is a shorter, thicker, and coarser shell, with a proportionally longer 

 spire; the columellar folds are four, more transverse, and nearly equally prominent; the 

 outer lip, in all stages of growth, is without plaits, and the inner lip, which is but little 

 spread out, does not extend backwards beyond the suture. Brander's shell (fig. 65) 

 does not belong to this species ; and Lamarck, in fact, referred it to his V. spinosa, which 

 is, however, a much less ventricose shell. It belongs to Mr. Sowerby's V. spinosa, 

 var. f3. ; the latter is, as that gentleman suggested, a distinct species, and I have sepa- 

 rated it under the name V. Solandri. Brander's Strom, dubius (fig. 68) is without doubt 

 a young individual of the present species. 



Size. — Axis, 5 inches nearly; diameter 1\ inches nearly. 



Localities. — Barton Cliff and the corresponding formation in Alum Bay (Stratum 

 No. 29, Prestwich.) Bracklesham Bay ? 



No. 88. Voluta nodosa. Sowerby. Tab. XIX, figs. 1 a — h. 



Voluta nodosa, Sow. 1818. Min. Con., vol. iv, p. 135: t. 399, fig. 2; vol. 7, p. 6 ; 



t. 613, fig. 1. 



— — Defr. 1829. Diet, des Sci. nat., vol. lviii, p. 481. 



— — Sow. 1850. Dixon's Geol. &c, of Suss., p. 103 ; t. 5, fig. 23. 



— devexa? .Beyr. 1853. Die Conchyl. des Norddeut. tertiar., vol. 1, p. 61 ; t. 3, figs. 



6 a, b, 7 a, b. 



V. testa ovato-acutd, obscure costatd, transversim sulcata; spird elevatd, sub-conicd, 

 apice acuto : anfractibus obtuse angulatis, bindserie spinarum nodiformium coronatis; aper- 

 turd angustd, in medio latiori ; labro ad marginem crenulato, intus plicato ; labio late ex- 

 panso ; columella triplicatd. 



Shell ovate, pointed, obscurely ribbed, transversely furrowed ; spire elevated, almost 

 conical, with a small pointed apex ; whorls, five or six, slightly convex, obtusely angu- 

 lated at the shoulders ; the ribs, which in the fully-grown shell are obscure and scarcely 

 extend to the middle of the whorl, terminate at the shoulder in a row of blunt, nodiform 

 spines ; a second row of blunt spines, corresponding with the first, runs round the sutural 

 margin, but becomes almost obsolete on the last whorl. The space between the suture 

 and the shoulder is moderately wide, slightly concave, obscurely sulcated ; the furrows on 

 the whorls are narrow, concave, and separated by wide flat spaces, roughened by sharp 

 conspicuous lines of growth. The aperture is rather narrow at each extremity, wider 

 in the middle ; the outer lip bluntly angulated towards the posterior extremity, crenu- 

 lated on the margin, and plicated within ; the inner lip is spread over the front of the 

 body-whorl, extending backwards to the spines on the preceding whorl, and much 

 thickened ; the columella is a little flattened, and furnished with three folds, the an- 

 terior one of which is distant from the others, and large and prominent. 



The present species, founded on a specimen from Barton Cliff, is widely spread, 

 and ranges downwards to our older Eocene formations ; since the Volutes which 



