330 mOllusca. 



times entirely black, lb. II, i, 2. A decoction of this species 

 is sometimes used in France for pulmonary disorders(l). 



Lima, Feruss. 



The respiratory opening towards the posterior part of their shell, 

 and frequently much larger. Such is 



L. antiquorum, Feruss., pi. iv and viii, A, f. \; L. maximus, 

 L.; L. sylvaticus,D rap., Moll., IX, x. Frequently spotted or 

 streaked with greyj found in caves and dark forests. 



X. agrestis,L..', Feruss., pi. v, f. 510, Small, immaculate? 

 very common and extremely noxious(2). 



Vaginulus, Feruss. 



A dense mantle without shell, stretching over the whole length 

 of the body; four tentacula, the lower ones slightly forked; the anus 

 at the extreme posterior extremity, between the point of the mantle 

 and that of the foot, the same orifice leading to the pulmonary cavity 

 situated along the right flank; orifice of the male organ of genera- 

 tion under the right inferior tentaculum, and that of the female 

 under the middle of the right side. These organs, as well as those 

 of digestion, are very similar to the same parts in the Slug. 



These Mollusca are found in both Indies, and closely resem- 

 ble the common Limaces(3). 



(1) Add: the L. albus, Miill, Feruss., pi. i, f. 3;L. hortensis. Id., pi. ii, f. 

 46. 



(2) Add: L. alpinus, Feruss., pi. v, a? L. gagates, Drap., pi. ix, f. 1 and 2, 

 &c. N.B. The Plectuophora, Feruss., would be Limaces, having a sort of small 

 conical shell on the end of their tail, and far from the shield; they are only known, 

 however, by drawings of very equivocal authority, Favanne, Zoomorphosc, pi. 

 Ixxvi, copied Feruss., pi. vi, f. 5, 6, T. 



M. de Blainville (Malac, p. 464) now doubts the reality of his genus Lima- 

 CELiA, and rejects his genus Veroniceila, Diet, des Sc. Nat. The Putlomt- 

 CHus and Eumeles, Raf., are too imperfectly indicated to be admitted into a work 

 like this. 



(3) Vaginulus Taunaisii, Feruss., pi. viii, A, f. 7; and viii, B, 2,3; V. alius. 

 Id., pi. viii, A, f. 8, and viii, B, f. 6; V. Langsdarfii, Id., pi. viii, B, f. 3 and 4; 

 V. laevigatuSt Id., pi. viii, B, f. 5, 7; Onchidium occidentale, Guilding, Lin. Trans. 

 XIV, ix. 



The genus Meghimatium of Van Hassel., Bullet. Univers., 1824, Zool. tome III, 

 p. 82, should apparently be added to it. 



N.B. The genus Vaginula differs from Onchidium, with which M. de Blain- 

 ville has united it, Malac, p. 465, detaching from it, at the same time, the true 

 Onchidiums to form his genus Peronia. His anatomy of the Vaginula in the 

 Moll. Terr, et Fluv. of M. de Ferussac, pi. viii, C, is very good. 



