75 
A PROBABLY NEW SPECIES OF AZECA 
(AZECA ELONGATA) IN THE BRITISH ISLES. 
OHN W. TAYLOR, F.L.S., 
Membre Honoraire de la Société Malacologique de France, 
In the monograph of the genus ae published by J. R. weiter 
in 1850, he divides the species he considers as belonging to 
this genus into four sections or series, which he distinguished as 
Azecastrum, Alsobia, Agraulina, and Flypnophila. 
Our suggested new species belongs to the section Azecastrum, 
which is especially characterised by a strongly dentate aperture, and 
is restricted in its distribution to Central and Northern Europe. 
The proposed new species to which I am desirous of directing 
the especial attention of conchologists, in the hope that more 
specimens will be forthcoming, may be known as 
Azeca elongata sp. nov., 
and described as having a shell of an elongate form, composed of 
about 9} slightly convex whorls, increasing gradually in size, of a 
yellowish-brown or chestnut colour, smooth and glossy, with very 
lunt at the apex, suture 
impressed, mouth pyriform, 
acutely angled posteriorly with 
a broad marginal callosity 
a raised thread-like rib, an 
seca tridens Pult. x : . Azeca elongata Taylor x4 
_likley, nr. Leeds, 4 furnished with a strong and ke ton, v orks z 
or comparison with ollecte 
Azeca elongata. somewhat posteriorly inclined 4, -oleged by 
enticle on the middle of the 
Outer margin, an an cone convex, simple pointed denticle at the 
base of the columella, and on the penultimate whorl there is a small 
denticle about midway between the outer lip and the columella. 
Length 9 mill., breadth 24 mill. Aperture 2} mill. long. 
Compared with Azeca ftridens this form may be immediately 
recognised by its elongate shape, which markedly contrasts with 
the almost exactly pupeform shape of the typical 4. ¢ridens. 
There are 93 whorls instead of seven only, and they also increase 
more slowly in size, the last whorl being comparatively smaller 
than in Pulteney’ S species. 
The aperture is more broadly expanded than in A. ¢ridens, and not 
nearly so compressed posteriorly, and its armature is strikingly 
March 1897. 
