104 GASTEROPODA. LIMNADZ. 
3. STAGNICOLA MINUTA. 
S. testa anfractibus septem transversim striatis; sutura pro- 
funda. 
Helix fossaria, Mont. Test. Brit. 372; M. & R. Trans. Linn. 
Soc. viii. 217. t. 5. fig. 9; Dill. Dese. Cat. 964; Turé- 
Conch. Dict. 66. 
Limneus minutus, Drap. Hist. des Moll. 53. pl. 3. figs. 5-7. 
Lymneea fossaria, Flem. Edinb. Encycl. vii. 77. 
Habitat in paludibus, vulgaris. 
Shell with seven transversely striated whorls; the suture 
deep. Height half an inch, generally less. 
Colour pale horn, sometimes cmereous. 
Animal testaceous, or greyish-black. Mantle dotted with 
opake yellow. Foot pale. 
This species, which was first observed by Montagu, is very 
common in marshes, ponds, and ditches, especially in such as 
are not deep. It rarely ascends the aquatic plants, but seems 
to prefer the mud, on which it is generally found. 
4. STAGNICOLA ELEGANS. 
S. testa anfractibus octo, elegantissimé elongatis, transversim 
striatis. 
Helix fragilis, Mont. Test. Brit. 368. t. 16. fig. 8; M. & R. 
Trans. Linn. Soc. vin. 215; Turt. Conch. Dict. 65. 
Lymneea fragilis, Flem. Edinb. Encycl. vii. 77. 
Animal luteo-nigricans, flavo opaco-punctatum. Caput et ten- 
tacula olivaceo-subtestacea. Pes pallidior. 
Habitat in aquis lenté fluentibus. 
Shell with eight elegantly-elongated whorls, which are stri- 
ated transversely. Height two inches. Breadth of aperture 
one inch. Length of aperture nine-sixteenths of an inch. 
Colour pellucid-horny, sometimes inclining to testaceous, 
and often incrusted with a black deposit. 
This species, which is very nearly allied to the following, is 
confined to slowly flowimg waters. It was first discovered by 
Montagu, who fancied that it might be the Helix fragilis of 
Linné, which, from the description in Fauna Suecica, must most 
decidedly be a very different shell. 
