GASTEROPODA. 19 
and whose strongly expressed opinion was originally the means of directing the attention 
of the present writer to it. 
AMBERLEYA NoposA, Tab. XLI, fig. 3; et Part 1, Pl. V, fig. 19, 1850. 
This elegant shell was represented in so defective a manner at Plate V, fig. 19, as to 
render it desirable to give the present illustration, in which the aperture faces the spectator 
more directly. The examination of additional-specimens has tended to confirm the views 
expressed in my manuscript of 1850, viz., that Amderleya should rank as a distinct genus 
of the Littorinide, separated from Littorina by the thin test, lengthened, almost turricu- 
lated, spire, and scarcely less so by the ornamentation of the volutions. Other examples 
of Amberleya will be found in 4. Jurassi, Lyc. (the next species here described), Zurbo 
capitaneus, Munst., Turbo ornatus, Sow., and some other allied Inferior Oolite species 
which have been figured by D’Orbigny as examples of Purpurina, but which are well 
distinguished from the type form of that genus (see the observations on Purpuroidea 
insignis). The generic appellation Amber/eya was derived from Amberley Heath, which 
is a second name for Minchinhampton Common.’ 
AmMBERLEYA Jurass!, Zyc. Part 1, 'l'ab. IX, figs. 33, 33 a. 
Testa turbinato-conicd, acutd, lineata, anfractibus (6) latis, tricarinatis, carina mediana, 
magna, subacuta, anfractu ultimo carinis 8, elevatis, subacutis, striis obliquis serratis, aper- 
tura magna, ovata basi subangulato, columella recta. 
Shell turbinated or conical; spire elevated, acute; volutions (6) high, with three 
elevated, subacute carine, of which the median carina is the most prominent. The last 
volution is large, with eight elevated carinz, their edges being serrated by oblique, longi- 
tudinal striations; the aperture is large, ovate, somewhat angulated at the basal junction 
with the columella, which is straight. 
Distinguished from Turbo capitaneus, Goldf., both by the characters of the general 
1 Subsequently to the completion of this Supplement, I have been favoured by M. Eugene E. 
Deslongchamps with a copy of his memoir, extracted from the fifth volume of the ‘ Bulletin of the Linnean 
Society of Normandy, 1860, entitled ‘‘ Observations concernant quelques Gasteropodes, Fossiles, des 
Terrains Jurassiques places par U auteur de la ‘ Paléontologie Fracaise’ duns les genres Purpurina. Trochus 
et Turbo. Note sur le genre Eucyclus.” The latter proposed new genus is identical with our Améerleya, 
quoted in the memoir as Adberleya. The author has in this little work given an excellent critical analysis of 
the group of which he has proposed to constitute Hucyclus; these are Purpurina Patroclus, D’Orb., 
P. Philiasus, D’Orb., P. ornata, D’Orb., P. bathis, D’Orb., Turbo Itys, D’Orb., T. niceus, D’Orb., T. 
Julia, D’Orb., T. capitaneus, Munst., T. castor, Roem., T. princeps, Roem. He has also figured and de- 
scribed the following new species—Eucyclus obeliscus and E. papyraceus, from the Upper Lias; £. pinguis 
and E. goniatus, from the Inferior Oolite; the latter shell, in its general figure and plan of ornamentation 
has a considerable resemblance to Amberleya nodosa. Eucyclus is therefore a synonym of Améerleya. 
