92 LIMACINEA. 



The Rev. B.J. Clarke, of Tuam, has kindly sent me a draw- 

 ing of a very distinct variety of this animal. 



Section II. — Shell depressed ; mantle of the animal short, 

 and posteriorlij rounded. 



2. LiMAX FLAVUS, pi. IX, f. 27- 



Limax jlavus, Linnaeus, Syst. Nat., p. 1082; lb., Fau. Suec, 

 p. 3G3, No. 2092; Pennant, Brit. Zool., IV, p. 41 ; Latham, 

 Linn. Trans., I, p. 1 82 ; Thompson, Ann. and Mag. Nat. Hist., 

 VI, p. 18; Limax variegatus, Drapernaud, p. 127; Ferussac, 

 Prod., p. 21 ; lb.. Hist. Moll., p. 71, pi. 5, f. 1 to 6 ; Alder, 

 Mag. Zool. and Bot., II, p. 105 ; Nunneley, Trans. Phil. Soc. 

 Leeds, I, p. 47, pi. 1, f. 3; Limax succino colore, Lister, 

 Conch., pi. 101, f. 6; Limacella concava, Brard, p. 121, pi. 4, 

 f. 5, G, 13, 14, shell; Limacellus variegatus, Turton, Man., p. 

 25, pi. 3, f. 16; Limax jlavus, Brown, Illust. Conch., p. 55, pi. 

 18,* f. 18. 



Shell extremely thin, shield-shaped, slightly concave; anterior 

 edge a little rounded ; posterior end mammilliform ; of a pale, 

 yellowish colour. 



Frequents cellars, in London and its vicinity, and has been 

 met with at Oxford, Plymouth, Bristol, and Bath; and was dis- 

 covered at Youghal, Ireland, by Robert Ball, Esq., and has also 

 been found in the North by William Thompson, Esq., of 

 Belfast. 



Section III. — Mantle short, truncated behind ; shell thick, 

 convex beneath, and oval. 



3. Limax carinatus, pi. IX, f. 28. 



Limax carinatus, Leach, Moll., p. 73, pi. 8, f. 1 ; Alder, 

 Mag. Zool. and Bot., II, p. 105 ; Thompson, Ann. and Mag. 

 Nat. Hist., VI, p. 63 ; Brown, Illust. Conch., p. 55, pi. 18,* f. 

 19; Limax Sotverbii, Ferussac, Hist. Moll., pi. 8, f. 7, 8 ; 

 Denson, Mag. Nat. Hist., VI, p. 694, f. 120, a, b ; Limacella 

 xingulata, Brard, p. 116, pi. 4, f. 3, 4, 11, 12; Limacellus 

 ungulatus, Turton, Man., p. 25, pi. 3, f. 15. 



Shell oval, or rhombic, rather thick, and convex beneath, of 

 a pale cream-white ; margin rather broad, rufous towards the 

 top ; destitute of a membrane, and never concave. 



