54 GASTEROPODA. LIMACID. 
has only translated this character, I must decline agreeing in 
opinion with my learned friend. 
4, Limax carinatus. PI. VIII. fig. 3. 
L. griseus nigricante et subcroceo variegatus, dorso usque ad 
thoracem carinato ; carina simplici crocea. 
Testa parva, crassiuscula, ovata, plana ; rarius concava. 
Habitat in hortis circa Londinum vulgatissimé. 
Animal grey, variegated with pale or dusky croceous ; back 
carinated from its hinder extremity to the thoracic dise; the 
carina simple and saffron-coloured. Shell small, thickish, ovate, 
and flat, very rarely concave. 
This very beautiful and new species was communicated to 
me by my friend R. Latham, Esq., together with a quantity of 
L. variegatus, which he had kindly promised to procure for me. 
On examination I found it to be a most common species in all 
the gardens around London. 
It resembles at first sight imax variegatus, with which it 
agrees in size and general colouring; but it may readily be dis- 
tinguished by its prolonged carina, and by the inferior size, but 
superior thickness and different form, of its internal shell, which 
is very rarely concave. 
5. Limax AGRESTIS. 
L. rufescens aut griseus, concolor aut fusco maculatus, thorace 
elongato posticé rotundato, carina dorsali brevi obliqua, collo 
superné bisulcato. 
Limax agrestis, Féruss. Hist. des Moll. 73. 
Var. a. Albidus immaculatus. 
Limax cinereus alter, List. Phil. Trans. (1674) 96. 
Limax agrestis, Linn. Syst. Nat. xii. i. 1082; Penn. Brit. 
Zool. iv. 41; Drap. Hist. des Moll. 126. var. a; Féruss. 
Hist. Nat. des Moll. var. a. 
Var. (3. Albidus, thorace flavescente. 
Limax agrestis, Mill. Verm. Hist. 204. var. e ; Drap. Hist. 
des Moll. 126. var. y; Féruss. Hist. Nat. des Moll. pi. 
5. figs. 9-10. var. y; Lath. Trans. Linn. Soc. iv. 85. 
var. (3. 
