GEOMALACUS. 
71 
Arion hortensis. Ferus, Hist. Moll. 6. 5. t. 11. f. 4 — 6. viii. a. 
f. 2, 3, 4., Tahl. Syst. 18.; Gray, Med, Rep. 1821 ; Leach., 
Syn. Moll. 49. ; Forbes andManley., B.M. iv. 10. t. F. F. F. 
f. 1. ; Gray, Cat. B. M. 56. ~ Limacella concava. Brard, 
Hist.\2l. (Shell.) — Lirnacellus variegatus. Turton, Man, 
ed. 1. 25. t. 3. f. 16. (Shell.) — Limax subfuscus. Pfeiffer, 
Syst. Ind. 4. 20. (?) — Limax hortensis. Blainv. ; Gratel. 
Moll. Bax. 55. f. 4. ; Michelen, 6. Var. 2. with a black 
streak on each side. — Limax fasciatus. Nilson, Faun. 
Suec. 3. — Arion circumscriptus. Johnst, Edinb. Phil. Journ. 
1828, V. 77. — Arion hortensis, var. /3. Alder, Mag. Zool. 
and Bot. iii. 105. — • Arion (Prolepis) fuscus. Moq. Tandon, 
Moll. Franc, ii. 14. t. 1. f. 28 — 30. 
Inhab. woods, hedges, and gardens. Gray, 1817. 
The variety is greyish, spotted with black, and 
with a black fascia round the shield and bod 7 ; the 
respiratory hole is anterior. The young is yellow 
or white, with black head and tentacles. 
Common in gardens near London, called the April 
Slug. Eggs phosphorescent. 
M. Tandon describes 1 1 varieties. 
2. Geomalacus. 
Body rather depressed ; shield granular ; back 
rounded, convex, not keeled ; subcaudal gland 
lunate, horizontal ; respiratory aperture rather 
in front of the middle of the lower edge of the 
shield ; foot divided into three equal longitu- 
dinal bands. 
15. 1. Geomalacus maculosus. Spotted Irish 
Slug. — Intense black beneath, pale white back 
and shield, with numerous subequal yellow 
spots, generally more numerous in a line on 
each side of the body. 
