SYSTEMATIC INDEX. 



The species not printed in italics, are those whose dis- 

 tinctness is doubtful, or which having only been found 

 after death, have probably been cast ashore from wrecks. 

 The numerals refer to the page at which each species is 

 described. 



ANNELIDES. 



DWTALWM. Album> 2 . 



Entails, 1 (a). 

 Tarentinum,f.Q. Young 



Dent alis, 2, and Se- 

 mistriatum, 3. 



Octangulatum, 2. 

 Labiatum, 3. 



(a) According to M. Deshayes, this and the succeed- 

 ing shell form but one species. We shall not be sur- 

 prised if this opinion prove correct with regard to the com- 

 mon Kentish specimens, (in abundance at Pegwell Bay) 

 which we consider to be the Entalis of the majority of 

 British cabinets. 



