PROSOBRANCHIATA. 153 
No. 91. VotuTa ELEVATA. Sowerby. Tab. XX., figs. 2. a—d. 
Votuta ampraua, Lamk. 1811. Ann. du Mus., vol. xvii, p. 77, No. 12. 
== = I. 1822. Hist. nat. &c., vol. vii, p. 352, No. 12. 
— _— Desh. 1824-37. Descr. des coq. foss., vol. ii, p. 691; t. 93, figs. 10, 11. 
—  evEvaTa, Sow, 1840. Min. Conch., vol. vii, p.7; t. 613, fig. 4. : 
— amBiaua, Gratel. 1845. Conch. foss. &c., du bassin de l’Adour, Supp. Volutes, t. i, 
figs. 14, 15. 
— — D’ Arch. 1850. Desc. des foss. du groupe Numm. (Mem. de la Soc. 
Geol. de France, 2d ser., vol. ili, p. 447). 
= — ? Rowault. 1850. Desc. des foss. &c. des environs de Pau (Idem, 2d 
ser., vol. ili, p. 457). 
—  sus-amBreva, D’ Orb. 1850. Prod. de Paléont., vol. iii, p. 10, No. 150. 
V. testa oblongo-ovatd, sub-turritd, transversim sulcatd, longitudinaliter costatd ; spird 
elevata, acutd: anfractibus convexiusculis, ad margines suturales planatis ; sulcis posticis 
latioribus ; costis fere ad basin tendentibus, duas vel tres series spinarum dentiformium 
inter sulcos posticos gerentibus : labro ad marginem crenulato ; labio parum eapanso ; columella 
tri-plicata. 
Shell of a lengthened oval form, longitudinally ribbed, transversely furrowed, deeply 
notched at the base ; spire elevated with,a small pointed apex: whorls slightly convex, 
with the sutural margins depressed so as to form a narrow flat space, which runs round 
the spire; furrows numerous and regular until they approach the shoulder of the whorl, 
where the last three or four become gradually wider; the longitudinal ribs, which are 
more or less numerous in different individuals, extend almost to the very base of the 
whorl, and are surmounted by several rows of short tooth-like spines rising out of the 
spaces which separate the posterior furrows. The outer lip is smooth within, and cre- 
nulated on the margin by the transverse sulci; the inner lip is but slightly spread out, 
and does not extend backwards beyond the suture; the columella bears three very 
oblique folds, of which the anterior one is the largest. 
This species was founded on a shell from the neighbourhood of London; it occurs 
also at Bracklesham Bay, but in the specimens from that locality the spire is not so 
elevated, and the shell is altogether shorter and broader. 
The French shells referred by Lamarck to Brander’s Strombus ambiguus, belong to 
the present species; but in them, as in the Bracklesham Bay shells, the spire is less 
elevated, and the shell is broader. In other respects they agree with the type. 
A beautiful series of this Volute was obtained from the Artesian well at Southampton 
by Mr. Keele, for the use of which Iam indebted to the kindness of that gentleman. 
One of this series is represented by figs. 2 ¢, d; figure 2 4 is taken from a specimen 
from Highgate. 
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