LIMNiEAD^. 265 



105. 6. Planorbis marginatus. Margined Coil 

 Shell, (t. 8. f. 87, 88. 90.) Shell horn-colour, 

 brown, semitransparent, striolate, flat or a little 

 concave above, flattish, with a slight central con- 

 cavity, beneath ; whorls rapidly enlarging, flat, 

 and strongly keeled above, ventricose and rounded 

 to the margin beneath, 



Planorbis marginatus. Drap. p. 45. t. 2. f. 11, 



12. 15.; Rossm. Icon, ii. t. 2. f. 59.; Brard, p. 



152. t. 6. f. 5. ; Alder, Mag. ZooL 8f Bot. ii. 112.; 



Turton, Man. ed. 1. 107. f. 87. 

 Helix planorbis. Linn. Syst. i. 1242.? Penn, 



B. Z. ii. t. 83. f. 123.; Linn. Trans, viii. 188. 



t. 5. f. 13. 



Helix complanata. Linn, S, N, i. 1242.?; Mont. 



p. 450. t. 25. f. 4. ; Fleming, B. A. 278. 

 Planorbis umbilicatus. Mutter, Verm, ii. 160. ; 



Jeffreys, Linn, Trans, xvi. 384. 

 Planorbis carinatus. Studer. 

 complanatus. Turton, Man. ed. 1. 108. 



and f. 88. (not 89. as cited.) 

 Var. 1. Planorbis turgidus. Jeffreys, Linn. Trans. 



384. 

 Var, 2. Helix rhombea. Turton, Conch. Diet, 

 Planorbis rhombeus. Turton, Man. ed. 1. 108. f. 



90. 

 Planorbis Sheppardi. Leach, Moll. 149., and 



Cab. Brit. Mus. 

 Helix Draparnaudi. Sheppard, Linn, Trans, xiv. 



158.; Cab. Brit. Mus. 

 Planorbis Draparnaldi. Jeffreys, Linn. Tram. 



xvi. 306. 



N 



