72 CLASS Ill. GASTEROPODA. ORDER VI. PULMOBRANCHIATA. 
The shell of Carocolla may be described as being depressed, superiorly 
convex, and generally covered with an epidermis ; the last whorl is acutely 
angulated, and frequently forms a deep umbilicus ; the aperture is mostly 
oval ; the lip is rather angular, reflected, and often dentated within with 
strong plaits. 
Examples. 
Pl]. CLXVII. Fig. 1 and 4. 
Carocoutzia rota, Broderip, Proceedings Zool. Soc., 1841, p. 45. 
Pl. CLXVII. . Fig. 2. 
Carocotia Reeina, Broderip, Proceedings Zool. Soc., 1841, p. 36. 
Pl. CLXVII. Fig. 3. 
CAROCOLLA LABYRINTHUS (var.), Lamarck, Anim. sans vert., new edit., 
vol. viii. p. 144. De Férussac, Hist. Moll., pl. 54. B. f. 4. 
Helix labyrinthus, Chemnitz. 
Helix (Helicigona) labyrinthus, De Férussac. 
Pl. CLAVIL, Bie.5: 
CarocoLia FiBuLA, Broderip, MSS. Cuming Cab. 
Pl. CLXVII. Fig. 6. 
CarocoLtya GUALTERIANA, Lamarck, Anim. sans vert., new edit., vol. viii. 
p. 146. Chemnitz, Conch., vol. v. p. 237. vign. 44. f. A. B.C. Born. 
Mus., pl. 13. f. 12 and 13. 
Helix Gualteriana, Linneeus. 
Iberus Gualterianus, De Montford. Gray. 
Pl. CLXVII. Fig. 7. 
CarocoLLa PARMULA, Broderip, Proceedings Zool. Soc., 1841, p. 38. 
Pl. CLXVII. Fig. 8. 
CaROCOLLA MARGINATA, Lamarck, Anim. sans vert., new edit., vol. vii. 
p. 147. Born. Mus., pl. 14. f. 7 and 8. 
Helix (Helicigona) marginata, De Férussac. 
