HELIX. 961 



Helix Amarula. Linnczm Syst. Nat. p. 1248. Born Mus. 



p. 391. t. 16. f. 21. Schroeter Fluss. p. 297- t. 9. f. 8 



and 11 ; Einl. ii. p. I66, and Inn. Bau Conch, p. 48. t. 



1. f. 4. Chemnitz, ix. part 2. p. 15?. t. 134. f. 1218 and 



1219. Gmelin, p. 3656. Brookes s Introd. p. 129. t. 



8. f. 117. 

 Buccinum Amarula. Muller Verm. ii. p. 137. 

 Helix Mitra. Mus. Gronovianum, p. 128.? Schroeter 



Fluss. p. 300. t. 9. f' 10. ? Gmelin, p. 3655. ? 

 Bulimus Amarula. Brnguiere Enc. Meth. p. 309. 

 Melania Amarula. Lamarck Syst. des Jnim. p. 91. 

 Lister Conch, t. 133. f. 33. Rumphius, t. 33. f. FF. Pe- 



tiver Ami), t. 4. f. 3. Argenville, t. 27. f. 6. Seha, iii. 



t. 53. f. 24 and 25. Martini Berlin. Mag. iv. t. 9. f. 



38. Jarowwe, t. 61. f. G2. 

 Variety. Ventricose, and the spire shorter. 

 Lister Conch, t. 1055. f. 8. Gualter, t. 6. f. B. Martini 



Berlin. Mag. iv. t. 11. f. 64 c. Favanne, t. 6I. f. Go. 



Chemnitz, ix. t. 134. f. 1220 and 1221. 

 Inhabits rivers in Asia. Linnmis. Amboyna. Rumphius. 

 Isles of France and Bourbon, and Madagascar. Bruguiere. 

 River Ganges. Humphreys. 

 Shell about an inch and a half long, and nearly half as broad, 

 of a pale chestnut-colour, coated with a black epidermis, 

 and the aperture white ; it has seven whirls, of which the 

 body-whirl is as long as the spire, and they have a flattish 

 space at their upper extremities separated by an angulated 

 keel, which is armed with eight or ten spine-like teeth ; the 

 Variety is much more strongly plaited longitudinally, and 

 more ventricose, and has the spire much shorter, so as to 

 give the shell quite a different appearance ; but no author 

 has arranged it separately. 



TURBiNATA. 167. Shell oblong, imperforate, smooth, 

 acuminated, and the whirls ventricose ; aper- 

 ture sub-oval and marginated. 



Helix turbinata. Gmelin, p. 3668. 



Helix, No. 328. Schroeter Einl. ii. p. 271. 



Marsigli Danub. iv. p. 89- t. 31. f. 2. Schroeter Fluss. p. 



360. t. 10 B. f. 1. 

 Variety B. Shorter, and the whirls more ventricose. 

 Helix Danubialis. Gmelin, p. 3668. 

 Helix, No. 327. Schroeter Einl. ii. p. 271. 

 Marsigli Danub. iv. p. 89. t. 31. f. 1. Schroeter Fluss. p. 



360. t. lOB. f. 5. 



