LITHODOMUS.— Platr Y. 



Eab. ? 



More contiMcttdly angled than ai 

 species, and sculptured with fine threi 

 ing over each side in different directii 



y of the preceding 

 d-likc striae, extend- 



Species 34. (Mus. Cuming.) 

 LiTHODOMUS DIVARICATDS. Lilh. teat.li elongalo-trape- 

 dnd, anlice attenuata, margine dorsali concavo, medio 

 acute angulato, ventrali subcanaliculato, superficie an. 

 tied eoncmne divaricatim tenuktriatn, posticd lavigatd, 

 corned. 



The 1)1V.\ricate Lithodomus. Shell elongately trape- 

 zoid, attenuated anteriorly, dorsal margins concave, 

 then sharply angled, ventral faintly channelled, ante- 

 rior surface neatly divaricately finely striated, poste- 

 rior smooth, horny. 

 I Fhilippi, Zeitschrift fiir Malae. 1847, p. 115. 

 Hah. West Indies. 



Distinguished by a characteristic variation of sculpture, 

 tiie anterior portion of the shell being beautifully di- 

 varicately striated, vfhilst the posterior is smooth and 

 horny. 



