162 
for a larger work on the whole subject. Such a catalogue, contain- 
ing some account of every ascertained native species, will be accept- 
able, it is believed, at once to the geologist and helicologist. 
The groups into which the species are distributed were chiefly set- 
tled previously to my acquaintance with the very useful work of 
Dr. Albers, entitled ‘Die Heliceen, nach Natirlicher Verwandt- 
schaft,’ &c.; Berlin, 1850: but I gladly embrace this occasion to 
acknowledge my obligations in various particulars to that interesting 
and important work, and to record my recollection of much pleasant 
intercourse and friendly communication in Madeira, during the winter 
of 1850-51, with its able author. 
Lea Rectory, June 12th, 1854. 
MOLLUSCA GASTEROPODA PNEUMONATA. 
Division A. TERRESTRES. 
Family I. Limacip2. 
Genus 1. Arron, Fér. 
1. A. aver (L.) var. limbata. Limaz ater var. ¢, Mill. Verm. i. 
7 A. empiricorum var. 1, Fér. Tabl. p. 17. 4. empiricorum varr. 
et 0, Prim. Faunee et Fl. Mad. p. 39, nec. Fer. 
Hab. in Madera. 
p- 
a 
Genus 2. Limax, (L.) Fer. 
2. L. Gacates, Drap. var. «. nigra, Fér. Tabl. p. 22. L. gagates, 
Drap. p. 122. t. 9. f. 1, 2. L. antiquorum var. a, Prim. p. 39, nec 
Fér. 
Hab. in Madera. 
3. L. cinereus, Mill. (maximus, L.) var. pardalis. L. anti- 
quorum var. €, Fér. Tabl. p. 20. 
Hab. in Madera. 
4, L. ruavus, L. var. virescens. L. variegatus, Drap. p. 127. 
L. variegatus 3, Fér. Tabl. p. 21; Prim. p. 39. 
Obs. L. antiquorum 4, Prim. p. 39, hic potius quam (ut in Prim. 
ed. 2. (1851) App. p. vi) ad L. antiquorum var. 4, Fér. (L. cinereus 
3, Drap.) referas. 
Hab. in Madera. 
5. L. agrestis, L. 
Var. punctata. L. agrestis 3, Mill. p. 9; Drap. 126. t. 9. f. 9. 
L. agrestis e, Fér. p. 21; Nilss. p. 9; Prim. p. 39. 
Var. maculata. L. reticulatus, Mill. p. 10. L. agrestis 3, Nilss. 
p- 9. L. agrestis y, Fér. p. 22; Prim. p. 39. 
Hab. in Madera. 
