296 MANUAL OF THE MOLLTJSCA. 



Distribution , 51 species. Euroj^e, Canaries, Sandwicli Islands, 

 A.nstralia. 



Fossil, Eocene — . Britain. Th.e Ancylus ? latus, Ed"^., of 

 klie Isle of WigHt, appears to be a Limax. 



Sub-genus. Oeomalacus {maculosus) AUman. Ireland. 



Shell nnguiform. Animal witli a mucns-gland at the 

 extremity of the tail ; respiratory orifice near the right anterior 

 border of the mantle. 



Anadenus, Ileynemann, 1863. 



3hell 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 surfoce not ridge I; tail without a 

 mucus-gland, and pointed. 



Distribution, 2 species. Himalayas. 



Incilaria, Benson. 



Tyjje 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 1 J inches. 6 species. North America, China. 



Philomycus (Eaf.) Fer. = Tebennoj^horus, Binney, 1842, 

 Boston Society's Journal (Helix Carolinensis, Bosc) is also a 

 slug with a long mantle. 



Arion, Eerussac. Land-sole. 



Type, A. empiricorum, Eer. 



Synonym, Limacella, Brard. 



Shell oval, concave ; 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 Umax; A. empiricorum 

 has 160 rows of 101 teeth each. The land-soles occasionally 

 devour 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 oviposit a month or two 

 before that j)eriod. The eggs of A. hortensis are very phos- 

 phorescent for the first fifteen days. (Bouchard.) 



