1424 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Family Trintjcleid.® Emmrich. 

 Cryptolithus Green, Dionide Barrande, Tretaspis McCoy, Trlnucleus Murchison. 



Family RaphiophoriD/E Angelin. 

 Am pyx Dalman (subgenus Loncliodomas Angelin). 



Order Opisthoparia. 



Family Olenid^e Burmeister. 



Acantholenus Matthew, Aulaeopleura Corda, Conocephalites Zenker, Ctenopyge Lin. 

 narsson, Loganellus Devine, Lonchocephalus Owen, Parabolina Salter, Paraboli- 

 nella Brogger, Parabolinopsis Hoek, Peltura Milne-Edwards, Ptyeboparia Corda, 

 Sphaerophthalmus Angelin , Triarthrus Green. 



Family Solenopleurid^e Angelin. 



Hystricurus Raymond, Solenopleura Angelin. 



Family Ceratopygid/E Raymond. 

 Ceratopyge Corda. 



Family Ellipsocephalidje Matthew. 

 Plethopeltis Raymond. 



Family Remopleurid^: Corda. 

 Remopleurides Portlock. 



Family Bathyurid^ Walcott. 



Bathyurellus Billings, Bathynrus Billings, Bolbocephalus Whitfield, Petigurus 

 Raymond. 



Family Asaphidje Burmeister. 



Asaphellus Callaway, Asaphus Brongniart, Basilicus Salter, Brachyaspis Salter, 

 Gerasaphes Clarke, Hemigyraspis Raymond, Holasaphus Matthew, Illsenurus Hall, 

 Isoteloides Raymond, Isotelus DeRay, Megalaspis Angelin, Nileus Dalman, Ogy- 

 gites Tromelin and Lebesconte, Onchometopus Schmidt, Ptychopyge Angelin, 

 Symphysurus Goldfuss, Vogdesia Raymond. 



Family Ill^nid^ Corda. 



Bumastus Murchison, Illsenoides Weller, Illaenus Dalman, Thaleops Conrad. 



Family Diicelocephalid.e MiTler. 



Apatokephalus Brogger, Calvinella Walcott, Conokephalina Brogger, Dikelocephalus 

 Owen, Platycolpus Raymond, Saukia Walcott. 



Family GoldiiD/E Raymond. 

 Goldius Dekoninck. 



Family Proetid^e Corda. 

 Cyphaspis Burmeister, Haploconus Raymond, Prcetua Steininger. 

 Family Lichadid/E Corda. 



Amphilichas Raymond, Arctinurus Castelnau, Conolichas Dames, Corydocephalus 

 Corda, Dicranopeltis Corda, Lichas Dalman, Metopolichas Gurich. 



Family Odontopleurid^e Burmeister. 



Acidaspis Murchison, Ceratocephala Warder, Glaphurus Raymond, Odontopleuar 

 Emmrich. 



