SIGAUETDS. 43 



undoubtedly identical, and correspond fairly with the descrip- 

 tion of Helix haliotoideus in the Systema. As there are only 

 two species in the Linnsean cabinet I do not know why my 

 late father selected the concave one for the Helix haliotoideus 

 of Linnaeus, which is described as depresso-planiuscula. — 

 Keeve, however, commending and intending to follow the 

 lead given in the genera of shells, figured for haliotoideus a 

 variety of Lamarck's >S'. concavus. Mr. Hanley has rightly 

 identified both the Linnsean species. 



16. MACULATUS, f. 2, Say. — Testa ovata auriformis sub- 

 planata, alba, spiraliter planulatim lirata, maculis fuscis 

 seriatim dispositis picta, ultimo anfractu subtus concavo. — 

 Rather more convex than the two preceding species, and 

 spotted with chestnut in partial bands. 



17. UNDULATUS, f. 50, 51, Lischke. — Testa ovata, valde 

 depressa, subplanulata alba, ferrugineo pallide maculata, 

 sulcislatiusculis, vix ' undulatis^? sculpta ; labio internosub- 

 incrassato, ultimo anfractu angusto, post labium internum 

 angustissime excavato. — This flattened shell takes nearly the 

 form of the younger specimens of the true S. haliotoideus of 

 Linngeus, the upper surface is slightly more convex, and there 

 are slight spots of pale colour. I have not, however, seen 

 the shell, and cannot from the figure make out what is 

 meant by the striae being remarkably ' undulated.' 



18. Japonicus, f. 48, 49, Lischke. — Testa quam S. 

 undulatus magis convexa, spiraliter tenuiter striata. — This 

 shell is considerably more convex than the preceding, and 

 more finely and closely sculptured, with very little undula- 

 tion (?). It is also described as being solid. I have not seen 

 the species, and can see no undtdated sculpture in the en- 

 gravings of either this or the preceding. 



Sect. 2. ^ Naticina, subovato-erecta. 



19. papilla, f. 44, Chemnitz. — Testa solidiuscula, elevata 

 ovali-subconica, spiraliter distanter inciso-lirata ; anfractibus 

 infra medium ventricosis, superne declivibus subattenuatis, 

 ad suturam tumidis angulatis, spiralibus brevibus obtusis, 

 ultimo post labium internum subumbilicato ; apertura elevata 

 oblique subpyriformi, labio interno crasso, superne tortuo. — 

 Solid, rather elevated and conical with spiral rather distant 



