119 



species they appear to constitute a very natural genus, distinguished by 

 their large tubercular growth and brilliant display of colours ; there is also 

 a character in the style of marking which obtains some importance from 

 the circumstance of its being generally accompanied by numerous transverse 

 lines in a manner peculiar to the genus, whilst the aperture is usually 

 closely radiated with elevated lines. The columella of the shell is in this 

 genus distinguished by oue or two plaits ranging obliquely at the base. 



The Fasciolar'm are pretty generally distributed, being found in Ceylon 

 and the Philippine Islands, Australia, Western Africa, Panama, Mexico, 

 and West Columbia, Honduras and the West Indies, the Mediterranean, 

 Cape de Verd Islands, &c. 



Species. 



1. aurantiaca, Lam. 7. granosa, Brod. 12. porphyrostoma,^.t^.S. 



2. coronata, id. 8. lignaria (Mur.), Linn. 13. princeps, Sow. 



3. distans, id. 9. luguhris, A. Sf R. 14. salmo, Gray. 



4. filamentosa (Fus.), Mart. 10. papillosa, Sow. 15. trapezium (Mur.), Lin. 



5. fusiformis, Valenc. 11. Persica, Reeve. 16. tulipa, Lam. 



6. gigantea, Kiener. 



Figure. 



Persica. PI. 10. 

 obliquely descenc 

 Cuming. 



Fasciolaria Persica. PI. 10. Fig. 45. Shell showing the columella 

 with its obliquely descending plaits. — From the collection of Mr. 



Genus 12. TURBINELLA, Lamarck. 



Animal ; disk rather short, thick, muscular, provided with a small 

 horny acuminated operculum ; head fattened, terminating with 

 two conical tentacles, which are rather stout at the base, and 

 have the eyes situated at about two-thirds of their length ; at 

 the lower part of the head is a slit, through ivhich passes a 

 retractile trunk. The mantle, ivhich lines the interior of the 

 shell in the usual manner, is prolonged into a fleshy siphon, 

 ivhich passes through the sinus at the base of the shell. 



Shell; ovate or fusiform, rather solid, often ponderous, spire 

 sometimes short, sometimes elongated, canal now very short and 



