TRACHELIPODA. 69 



9. Tiirreted, ovate ; covered with a yellow-olive epidermis, 

 beneath which are interrupted fillets of orange spots ; spire 

 crowned with tubercles. Two and a-half inches long. Inhabits 

 the Chinese seas. 



Genus 11.— COLOMBELLA.— Lamarck. 



Generic Character. — Shell oval; spire short; base of the 

 aperture more or less emarginate, and destitute of a canal ; 

 columella plicated ; outer lip with an internal prominence, which 

 contracts the aperture. 



Colomhella mercatoria The Merchant Colombella. Plate 



XL fig. 10. Ovate, white, sulcated, transversely clouded with 

 brown, or yellow-orange ; outer lip with internal dentations 

 An inch long. Inhabits the West Indian seas. 



FAMILY III. PURPURIFERA. 



Shell with a short canal posteriorly ascending, or with an 

 oblique notch at the base of the aperture, directed backwards. 



Sub-Division 1. — Having an oblique notch directed back- 

 wards. 



Genus 12.— TE RE BRA.— ZamarcA. 



Generic Character. — Shell elongated, turreted, acuminated; 

 aperture longitudinal, several times shorter than the spire, 

 notched at its posterior base ; base of the columella contorted 

 and oblique. 



Terebra vittata. — The Filleted Terebra. Plate XL fig. 

 12. Pale fawn-coloured, smooth; body, and volutions trans- 

 versely striated at the top, and with transverse purplish fillets, 

 occupying nearly its lower half. One inch long. Inhabits the 

 Indian ocean. 



Genus 13.— EB URN A Lamarck. 



Generic Character. — Shell ovate or elongated ; the outer lip 



