ce THE ANNALS 
AND 
MAGAZINE OF NATURAL HISTORY. 
No. 113. MAY 1846. 
XXXVII.—Description of a new genus of Pulmonary Gasteropods. 
By G. J. Autman, M.B., F.R.C.S.I. &e. 
[ With a Plate. ] 
In the autumn of 1842, William Andrews, Esq., of Dublin, dis- 
covered in the county of Kerry a molluscous animal nearly allied 
to drion, which, as he perceived it to be possessed of consider- 
able interest, he kindly placed in my hands for investigation. 
A careful examination of the mollusk now proved, that though 
it came very near to Arion, it was nevertheless incapable of being 
united either with that or with any other previously established 
genus, and the construction of a new generic group was accord- 
ingly deemed necessary. 
At a meeting of the Dublin Natural History Society i in Ja- 
nuary 1843, I described the new mollusk under the name of 
Geomalacus ‘maculosus, characterizing the genus as follows :— 
Noy. gen. GEOMALACUS. 
Gen. Cuar. Corpus productum, lanceolatum, carine expers ; pal- 
lium scutiforme, ovatum ; spiraculum in margine anteriori pallii ; 
foramen genitale pone radicem tentaculi minoris dextri; testa so- 
lida, plana, subovata.—Ab Arione differt hoc genus situ foraminis 
genitalis, a Limace cauda glandulifera et situ anteriori spiraculi. 
1. G. maculosus, unica species quam in rupibus madidis comitatus 
Kerriensis repentem invenit Gulielmus Andrews. Pl. IX. 
From the above description it will be seen that Geomalacus 
maculosus is a species of much zoological interest, constituting 
as it does a remarkable link between Arion and Lima. It is an 
exceedingly beautiful animal, measuring when creeping about 
two inches in length ; the colour of the shield and upper part of 
the body is black, elegantly spotted with yellow ; the under sur- 
face of the foot light yellow, and divided into three nearly equal ~ 
bands ; the edge of the foot is brown with transverse sulci. 
Besides the typical variety, which is that now described, a se- 
Ann. & Mag. N. Hist. Vol. xvi. Y 
