TURBINELLA. 131 



chologia Iconica/ was procured on the shores of Billitoii, 

 an island in the Java Sea, between Borneo and Sumatra. 



The interesting brotherhood of Turhinellce present a 

 striking contrast to the rude misshapen object for which 

 the genus Cyrtulus was established, although partaking 

 somewhat of the character of Fusus, with a certain degree 

 of resemblance to the Turh'mella pyrum and its congeners, 

 divested of their columellar plaits. This strange shell was 

 discovered by Captain Sir Edward Belcher, at Port Anna 

 Maria, IN^ukuhiva Marquesa, dredged from a depth of about 

 nine fathoms, and was at first conjectured to be some dis- 

 torted individual of an unknown species. Subsequent 

 examination, however, caused it be received as a new genus, 

 by Mr. Hinds, assistant-surgeon to the expedition, and as 

 such it is approved by Mr. Keeve. Since then, two or three 

 specimens have been found with the same peculiarity of 

 growth. 



The spire of the Cyrtulus is characterized by a neat display 

 of sculpture, but suddenly becomes acuminated in the same 

 curiously erect manner as in the Stromhus Thersites ; the last 

 whorl then assumes a rude swollen growth, smooth, though 

 very thick and ponderous, and rising in such a manner 

 around the base of the spire, as to give it a sunken half- 



K 2 



