AMBERLEYA. 287 
the lower part of the Huwmphriesianus-zone at Oborne, where it is the most 
abundant and characteristic species of Amberleya. 
218. AMBERLEYA PAGODIFORMIS, sp. nov. Plate XXII, fig. 9. 
Description : 
Length . : . 40 mm. 
Length of body- whorl to total height . . 48: 100. 
Spiral angle ; : / « Ase: 
Shell conical, eucycloid, turrited. The spire consists of about eight or nine 
whorls, the apical conditions being unknown. Whorls angular and distended by 
a large carina situated in the anterior region. In the earlier whorls of the spire 
two tuberculated circlets may be distinguished, connected by a kind of axial 
ribbing; the posterior circlet is close to the suture, the anterior one becomes 
more and more prominent, and in the later whorls the tubercles project like the 
teeth of a saw. 
Body-whorl large, angular, and similarly ornamented ; base rather flat, with 
about four finely-granulated spirals; the axial striz are wide apart, and strongly 
marked throughout the shell. 
Aperture almost trapeziform, with a short and very straight columella. 
Relations and Distribution—This form, it seems to me, helps to connect the 
eucycloid with the trochiform Amberleyas. The want of biangulation makes us 
regard it as a somewhat aberrant member of the goniata-group; whilst the flat- 
ness of the base, the wide space between the two spirals, and the trapeziform 
character of the aperture serve to connect it with Amb. biserta. 
Occurs sparingly at Bradford Abbas, and probably in the Murchisonex-zone. 
219, AMBERLEYA, cf. GENERALIS, Minster, 1844. Plate XXIII, fig. 3. 
N.B.—It must be borne in mind that the posterior portion of the last two 
whorls in our specimen has been stripped of all ornament. 
The length of the figured specimen is 35 mm., the ratio between the length 
of the body-whorl and total height 48 : 100, and the spiral angle 40°. 
Amongst other points of resemblance the serrated keel, anteriorly situated, is 
conspicuous. One can hardly say whether this species should be referred to the 
Hucyclus- or to the Trochus-section. 
The specimen is unique. It occurs ina brownish ferruginous stone, partly 
ironshot, which resembles the matrix of the Humphriesianus-zone of Dundry. 
