PULMONATA. 93 
No. 43. Limnza costTeLiata. &. £. Edwards. Tab. XII, fig. 10 a—é. 
L. testé ovato-ventricosd, sub-turritd ; spird mediocri, acuminata ; anfractibus quinque 
vel sex, convevis, longitudinaliter sub-costellatis, et lineis incrementi subtilissimé striatis ; 
costellis obscuris, irregularibus, remotiusculis : aperturd ovatd, ampla, spiram tn longitudinem 
superanti ; labio refleco ; plicd columellari viv tortuosd, rotundatd, parum eminentt. 
The striated Zimuee generally acquire that character from the conspicuous lines 
of growth; but the present species presents obscure costelle, as well as the striation 
due to the lines of growth. It is an oval, ventricose, sub-turreted shell, with a 
moderately elevated spire and pointed apex, and formed of five or six convex volutions, 
very finely striated by the lines of growth, and also longitudinally costellated; the 
costella are obscure, irregular, and separated by broad shallow sulci, in which the 
lines of growth are perceptible. The aperture is ovate, rather dilated, and a little 
longer than the spire; the columellar margin strongly reflected, and the fold rounded, 
slightly twisted, and but little prominent. 
Independently of its costellated character, this species presents differences which 
prevent its bemg confounded either with Z. strigosa (Brogn.), or L. substriata (Desh.). 
In the first species, the shell is more elongated, the aperture smaller, and the colu- 
mellar fold resembles that of LZ. /ongiscata, of which I think it is merely a variety; in 
the latter, the spire is more elevated, the aperture much contracted in front, and 
altogether narrower; and the fold is prominent and strongly twisted. 
The present appears to be a well-marked species. 
Size.—Axis, rather more than 1 inch; diameter, 4-10ths of an inch. 
Localities —Hordwell ; Headon Hill. 
No. 44. Limnama FABuLUM. Brogniart. Tab. XIV, fig. 10 a—d. 
Limnevs FaBuLuM. Brogn. 1810. Ann. du Mus., vol. xv, p. 375, t. 22, fig. 16. 
— — Brogn. 1811. Journ. de Phys., &e. vol. Ixxii, p. 423. 
LyMNEUS — Fér. 1814. Mém. geol., p. 61, No. 13. 
LIMNEA = ? Lyell and Mure. 1829. Sur les depdts lacust. tert. du Cantal. 
LymN@A FABULA. Desh. 1824—37. Desc. des coq. foss., &c., vol. il, p. 96; t. 11, 
figs. 11-12. 
— — Desh. 1830. Ency. Méth. Vers., vol. 11, p. 361. 
LyMNzEUs FABULUM. Defr. 1835. Dict. des Sci. Nat., vol. xxvi, p. 462. 
Limyza Faputa. Myst. 1836. Rech. coq. foss. de Hoesselt, &e., p. 20, No. 49. 
LyMN#A FaBULA. Desh. 1838. 2d edit. Lam. Hist. Nat., vol. viii, p. 223, No. 9. 
Limnzus rapota? Nyst. 1843. Desc. des coq. &c. foss. des Terr. tert. de Belg., 
p. 469, t. 38, fig. 18. 
L. testé ovato-ventricosd, levi, acuminata ; anfractibus quinque vel sex, conveaiusculis: 
apertura ovato-acutd ; plicd columellari sub-acutd, parum tortuosd. 
