PULMONAKY GASTEROPODS. 427 



exterior eye upon its anterior extremity. At the extremity of the 

 muzzle is the mouth, which is armed within with numerous horny 

 hooks, inserted in the tongue. A cylindrical syphon, reversing itself 

 in the shell, serves the purpose of carrying water to the "branchiae or 

 gills. The shells inhabit the seas of warm countries, especially those 

 lying between the Tropics, where they affect sandy coasts, with a depth 

 of ten to twelve fathoms of water. 



Among the species bearing a spiral crown, we may mention the 

 rare Conus cedonulli, of which several varieties are known, which come 

 from the South .American Seas and the Antilles. 



Conus hebraica, from the shores of Asia, Africa, and America, is a 

 common species. It is white with black spots, which are nearly 

 square, arranged in transverse bands. 



In PL. XXI. we have represented some interesting species. Conus 

 imperialis (Fig. I.) is a fine species, of white colour, with bands of a 

 greenish yellow or tawny colour, ornamented with transverse, cord- 

 like, articulated lines of white and brown. One of the largest species 

 is Conus geograplius (Fig. II.), which sometimes attains the length 

 of six or seven inches ; it is shaded white and brown. 



Among the non-crowned species, we have represented in Fig. III. 

 Conus tessellatus, common in the Indian Ocean. Its anterior part is 

 violet in the interior. The spots with which it is surrounded are of a 

 fine red or scarlet, or, in short, a red lead colour upon a white ground. 



Conus ammiralis, of which three varieties, Figs. IV., Y., and VI., 

 are natives of the seas which bathe the Moluccas ; they are beautifully 

 marked varieties, of a brownish citron colour, marked with white spots 

 nearly triangular, with tawny bands painted in very fine tracery. 

 This species has been, and is still, much sought after by collectors, 

 and presents many varieties besides those represented. 



Among the shells, which seem almost ready to become cylindrical, 

 may be noted Conus nobilis (Fig. VII.), a rare shell of yellowish colour 

 approaching citron, ornamented with white spots. The golden drop, 

 Conus textile (Fig. VIII.), is yellow in colour, ornamented with waving 

 longitudinal lines of brown, and white corded spots edged with tawny 

 colour. The glory of the sea, Conus gloria maris (Fig. IX.), is 

 white in colour, banded with orange, and reticulated with numerous 

 triangular white spots edged with brown. This is a native of the 

 East Indies, and one of the most beautiful shells of the whole group. 



