296 MANUAL OF THE MOLLUSCA. 
Distribution, 51 species. Europe, Canaries, Sandwich Islands, 
Australia. 
Fossil, Kocene—. Britain. The <Ancylus 2 latus, Edw., of 
the Isle of Wight, appears to be a Limax. - 
~ Sub-genus. Geomatacus (maculosus) Allman. Ireland. 
Shell unguiform. Animal with a mucus-gland at the 
extremity of the tail; respiratory orifice near the right anterior 
border of the mantle. 
ANADENUS, Heynemann, 1863. 
Shell round, calcareous, nucleus posterior; mantle large and 
rough; respiratory orifice on the right side and near the 
middle of the mantle; generative orifice distant from it behind 
the right tentacle. Dorsal surface not rideel; tail without a 
mucus-gland, and pointed. 
Distribution, 2 species. Himalayas. 
INCILARIA, Benson. 
Type I. bilineata, Cantor, Chusan. 
Synonym? Meghimatium, Hasselt. 
Animal elongated, tapering behind, entirely covered by a 
mantle; tentacles 4, the upper bearing eyes; the lower entire ; 
respiratory orifice on the right side, near the front of the mantle. 
Longitude 14 inches. 6 species. North America, China. 
Philomycus (Raf.) Fér. = Tebennophorus, Binney, 1842, 
Boston Society’s Journal (Helix Carolinensis, Bosc) is also a 
slug with a long mantle. 
ARIoN, Férussac. Land-sole. 
Type, A. empiricorum, Fér. 
Synonym, Limacella, Brard. 
Shell oval, concaye; or represented by numerous irregular 
calcareous granules. 
Animal, slug-like; respiratory orifice on the right side, 
towards the front of the mantle; reproductive orifice imme- 
diately below it; tail rounded, slightly truncated, terminated 
by a mucus-gland. Lingual teeth, as in limax ; A. empiricorum 
has 160 rows of 101 teeth each. The land-soles occasionally 
deyour animal substances, such as dead worms or injured 
individuals of their own species. They lay 70-100 eggs between 
May and September, are 26-40 days hatching, and attain their 
full growth in a year; they begin to oyviposit a month or two 
before that period. The eggs of A. hortensis are yery phos- 
phorescent for the first fifteen days. (Bouchard.) 
