CONTEl^tS. V 



XXIII. Sketch of the Characters of the Genera of Parnidea, 



a Family of Coleoptera _ _ _ _ page 88 



XXIV. On the distinguishing Characters of two Famihes 

 of Coleopterous Insects named Hydroph'dii by La- 

 treille,with a Synopsis of the Genera composing them 90 



XXV. Synopsis of the Genera composing the Family Sphcz- 

 rididea -------- 95 



XXVI. On the distinctive Characters of two Species of the 

 Fabrician Genus Gcotnipes, which have been con- 

 founded under the Name of idctaon - - - 96 



XXVII. Synopsis of three of tlie Genera of tlie Order Der- 

 maptera --------99 



XXVIII. On the external Characters of the Stirpes and Ge- 

 nera of the Family Tent/iredinidea, with Descriptions 



of several new Species - - - - - 100 



XXIX. On the Rhipiptera of Latreille, an Order of Insects 

 named by Kirby Strepslptera - - - - 1 33 



Type III. MOLLUSCA. 



Class CEPHALOPODA. 



XXX. Synopsis of the Orders, Families, and Genera of the 

 Class Cephalopoda - - ~ - - -137 



