BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 569 



GRAPTOLITHUS BIGSBYI Hall. See Tetragraptus similis. 

 GRAPTOLITHUS BRYONOIDES Hall. See Tetragraptus amii and T. serra. 

 GRAPTOLITHUS CADUCEUS Chapman. See Didymograptus (Isograptus) caduceus. 

 GRAPTOLITHUS CLINTONENSIS Hall. See Monograptus clintonensis. 



GRAPTOLITHUS CONSTRICTUS Hall (part) . See Didymograptus extensus and D. hirundo. 

 GRAPTOLITHUS CONVOLUTUS Carruthers. See Monograptus convolutus. 

 GRAPTOLITHUS CRUCIFER Hall. See Tetragraptus crueller. 

 GRAFTOLITHUS DENTATUS D'Orbignj'. See Diplograptus foliaceus. 

 GRAPTOLITHUS DENTICULATUS Hall. See Tetragraptus denticulatus. 

 GRAPTOLITHUS DIVARICATUS Hall. See Dicellograptus divaricatus. 

 GRAPTOLITHUS DIVERGENS Hall. See Amphigraptus divergens. 

 GRAPTOLITHUS ENSIFORMIS Hall. See Trigonograptus ensiformis. 

 GRAPTOLITHUS EXTENSUS Hall. See Didymograptus extensus. 

 GRAPTOLITHUS EXTENUATUS Hall. See Didymograptus extenuatus. 

 GRAPTOLITHUS FLACCID us Hall. See Leptograptus flaccid us. 

 GRAPTOLITHUS FLEMINGII Salter. See Monograptus flemingii. 

 GRAPTOLITHUS (DICHOGRAPTUS) FLEXILIS Hall. See Clonograptus flexilis. 

 GRAPTOLITHUS FOLIACEUS Murchison. See Diplograptus foliaceus. 

 GRAPTOLITHUS FOLIUM Salter. See Diplograptus foliaceus. 

 GRAPTOLITHUS FRUTICOSUS Hall. See Tetragraptus fruticosus. 

 GRAPTOLITHUS FURCATUS Hall. See Dicranograptus furcatus. 



GRAPTOLITHUS GRACILIS Hall. See Nemagraptus gracilis and N. gracilis surcularis. 

 GRAPTOLITHUS HEADI Hall. See Tetragraptus headi. 



GRAPTOLITHUS (DIPLOGRAPTUS) HYPNIFORMIS White. See Diplograptus foliaceus. 

 GRAPTOLITHUS INDENTUS Hall. See Didymograptus indentus. 

 GRAPTOLITHUS INTERMEDIUS Carruthers. See Monograptus intermedius. 

 GRAPTOLITHUS LAEVIS Hall. See Phycograptus laevis. 

 GRAPTOLITHUS LOGANI Hall. See Loganograptus logani. 

 GRAPTOLITHUS MARCIDUS Hall. See Cryptograptus tricornis. 

 GRAPTOLITHUS MILESI Hall. See Glonograptus milesi. 

 GRAPTOLITHUS MUCRONATUS Hall. See Lasiograptus mucronatus. 

 GRAPTOLITHUS MULTIFASCIATUS Hall. See Ampliigraptus multifasciatus. 

 GRAPTOLITHUS MULTIFASCICULATUS Lesley. See Amphigraptus multifasciatus. 

 GRAPTOLITHUS NITIDUS Hall. See Didymograptus nitidus. 



