INDEX TO THE HISTORIA CONCHYLIORUM. 
12 
Tab. Fig. 
117 . 12 . Born has erroneously cited this figure for Helix fuscata; and it is placed separately 
by Schroeter in the Einleitung, vol. ii. p. 199 . Helix No. 78 . and in the Flusscon- 
chylien, p. 358. Petiver’s t. 105. f. 7- has been copied from it. 
118. 13. Helix cuspidata. 
119 . 14. Has been considered by Muller, Schroeter, and Gmelin to be Helix Vibex, but is 
more like a young shell of Strombus auritus. I may here remark, that in the 
Descriptive Catalogue, p. 950, under the head of Helix Vibex , a reference to 
Chemnitz, ix. part 2 . p. I 89 . t. 136. f. 1261 . and 1262 . has been accidentally 
omitted, and that the reference to the Berlin Magazine should be erased. 
120 . 15. Klein has copied this figure in his Meth. Ostracolog. t. 2 . f. 38 ; and Gmelin 
has followed Martini and Schroeter in placing it as a separate species, with the 
name of Murex fuscus: but it appears to me to be at most only a variety of 
Mur ex - torulosus. 
121 . 16 . Strombus auritus; in the same manner as in the foregoing species: the Murex fas- 
ciatus of Gmelm has been wholly and very unwarrantably constituted from this 
figure, although he has also quoted it for Strombus auritus . The reference to 
this figure for Murex torulosus in the Descriptive Catalogue is erroneous, and 
t. 120. f. 15. should be substituted. 
■— 17. Murex fuscatus. 
122 . 18. A young shell of Murex Radula. 
— 19 . Is the Murex No. 51, of Schroeter’s Einleitung; and I have not met with any other 
reference to this figure. 
— 20 . Murex Radula. Gmelin has erroneously quoted this figure for Strombus aculeatus; 
and his Murex jluviatilis has been wholly derived from it. 
123. 21 . Helix stagnalis. Both this and the two following figures have been copied by 
Buonanni in his Ricreatione, part 3. f. 53. to 55. from the Historia Animalium 
Angliee, with a simple correction of the unnatural turn which Lister had given 
to the whirls ; and with this correction the same figures are here again pub¬ 
lished. 
— 22. Helix auricularia. 
— 23. Helix putris. 
124. 24. Bruguiere has quoted this figure for a variety of Helix palustris, with the following 
observation: “Lister l’a represents avec son animal, mais je dois prevenir que si 
“ la forme de la coquille convient, celle de 1 ’animal est fautive, a cause des tenta- 
“ cules quelle represente lineaires, tandis qu’ils sont effectivement triangulaires et 
“ plats, avec les yeux places interieurement a leur base.” Draparnaud also con¬ 
siders it to be that large variety of Helix palustris, which Gmelin has followed 
Schroeter in arranging as a separate species, with the name of Helix Corvus. 
125. 25. Helix Urceus. 
126 . 26 . Helix vivipara. 
127 . 27 . Several authors have followed Muller in quoting this figure for Helix angularis; 
but it is perfectly different, and is the Paludina decisa of Mr. Say, with specimens 
of which from New York I have been favoured by Dr. Mitchell. Petiver, in the 
Gazophylacium, 1 . 106 . f. 18. has copied this figure. 
128. 28. Ampullaria Guyanensis of Lamarck: which he says differs from Helix Urceus “en 
“ ce qu’elle n’offre que des stries d’accroissement; son ombilic est en outre plus 
“ evase, et la coloration de son ouverture est differente.” 
129 . 29 . Helix glauca. 
130. 30. Is generally considered to be a variety of Helix ampullacea, but has been separated 
by Mr. Swainson, with the name of Ampullaria fasciata. 
131. 31. Is the Helix No. 83. of Schroeters Einleitung: but it has not been noticed by 
Gmelin, and I am unacquainted with the species. 
132. 32. Helix tentaculata: and it has been copied from the Historia Animalium Anglise, 
t. 2 . f. 19 - so as only to correct the left-handed appearance of the whirls. 
133. 33. Helix Amarula. 
134. 34 . Bullafontinalis: and it has been copied from the Historia Animalium Anglise; ex¬ 
cept that the figure is inverted, so as to give the whirls their customary turn, in 
opposition to the generality of shells. 
135. 35 . Bulla crassula; and Petiver s Gazophylacium, t. 106 . f. 16 . is a copy. 
