FAMILY 3. CYCLOSTOMACEA. 99 
Pl. CLXXXIV. Fig. 16. 
CycLostoma F1LosuM, Beechey’s Voyage, Zoology, pl. 38. f.31. Sow- 
erby, Species Conchyliorum, Part 2. f.16 and 17. 
Pl. CLXXXIV. Fig. 17. 
CycLostoMa GIGANTEUM, Gray, MSS. British Museum. Sowerby, Spe- 
cies Conchyliorum, f. 9 and 10. 
Pl. CLXXXV. Fig. 18. 
CycLostoma EvoLutuM, Nobis, Sowerby, Species Conchyliorum, Part 2. 
it eye 
Pl. CLXXXV. Fig. 19. 
CycLtostoma Cuminait, Sowerby, Species Conchyliorum, Part 2. f. 187 
to 189 ; Proceedings Zool. Soc., 1832, p. 32. Deshayes, edit. of La- 
marck, vol. vill. p. 367. 
Pl. CLXXXV. Fig. 20. 
CycLosToMA FULVIFRONS, Sowerby, Species Conchyliorum, Part 2. f. 122. 
Pl. CLXXXV. Fig. 21. 
CycLostoma voLtvuLus, Lamarck, Anim. sans vert., new edit., vol. vill. 
p- 353. 
Hehe volvulus, Miller. 
Pl. CLXXXV. Fig. 22. 
CycLostoma virratuM} Sowerby, Species Conchyliorum, Part 2. f. 91 to 
94, 
Pl. CLXXXV. Fig. 23. 
CycLOSTOMA CARINIFERUM, Sowerby, Species Conchyliorum, Part 2. 
f.197 and 198. 
