CLiTiio>\ 385 



Ex. C. diadema, Recluz, pi. 42, fig. 3. Operculum, 

 C. diadema, fig. 3, «, 3, b. Shell, C. coronata. Leach, 

 fig. 3, c. 



The spines that usually ornament the whorls are 

 tubular, and sometimes very long; the Clithons inhabit 

 tropical countries ; they crawl slowly, and only show, 

 during locomotion, the tentacles and the tip of the muz- 

 zle ; they prefer a stony bottom, clear and free from 

 weeds, where the water is tolerably quiet. 



Species of Clithon. 



aculeata, Chem. 

 angulosa, Recluz. 

 aspersa, Recluz. 

 australis, Chem. 

 avellaua, Recluz. 

 Bengalensis, Chem. 

 bicolor, Recluz. 

 Bourgainvillei, Recluz. 

 brevispiua, Lam. 

 cselata, Recluz. 

 chlorostoma, Brod. 

 cincta, Recluz. 

 circumvoluta, Recluz. 

 corona, Linn. 

 coronata, Leach. 

 coronoides. Less. 

 Da Costae, Recluz. 

 diadema, Recluz. 

 Dominigensis, Linn. 

 Douovani, Recluz. 

 Dringii, Recluz. 

 faba, Sow. 

 flavovirens, Phil. 

 fuliginosa, Vhil. 



VOL. I. 



guttata, Recluz. 

 inconspicua, Phil. 

 iiiterrupta, Recluz. 

 Keraudreuii, Le Guillou. 

 Leacbii, Recluz. 

 Lessonii, Recluz. 

 luctuosa, Recluz. 

 Menkeana, Recluz. 

 Michaudiana, Recluz. 

 obscurata, Recluz. 

 olivacea, Recluz. 

 parvula, Le Guillou. 

 pulchella, Recluz. 

 rarispina, Mouss. 

 Reckiziana, Le Guillou. 

 rugata, Recluz. 

 ruginosa, Recluz. 

 sandalina, Recluz. 

 Sardoa, Mke. 

 solium, Recluz. 

 Souleyetiana, Recluz. 

 Sowerbyana, Recluz. 

 spinifera, Recluz. 

 spinosa, Budgin. 



3 D 



