NORTH AMERICAN GRAPTOLITES 95 
[Dendrograptus Hall—con?'d. | [| Dendrograptus Hall—con?'d. | 
gracillimus Lesquereux, 1877. eracillimus (Lesquereux), 1878. 
hallanus Prout, 1851. hallianus (Prout), 1851. 
novellus Hall, 1879. novellus Hall, 18709. 
preegracilis Spencer, 1884. preegracilis Spencer, 1884. 
? primordialis Matthew, 1885. ? primordialis Matthew, 1885. 
ramosus Spencer, 1884. ramosus Spencer, 1884. 
cf. seryfens Hopkinson, 1875.7 
simplex Walcott, 1879. simplex Walcott, 1879. 
spinosus Spencer, 1884. spinosus Spencer, 1884. 
striatus Hall, 1865. striatus Hall, 1865. 
tenuiramosus Walcott, 1979. tenuiramosus Walcott, 1879. 
Desmograptus Hopkinson, 1875. 
devonicus Gurley, sp. nov. 
macrodictyon Gurley, sp. nov. 
Dicellograpsus Hopkinson, 1871.7 
anceps (Nicholson), 1867.4 
caduceus Lapworth, 1876.3 
divaricatus (Hall), 1859. 
elegans (Carruthers), 1867.° 
gurleyt Lapworth, sp. nov. 
intortus Lapworth, 1880.° 
polythecatus Gurley, sp. nov 
moffatensts (Carruthers), 1858. 
rigidus Lapworth, 1880.° 
sextans (Hall), 1847. 
Dichograptus (syn. for Graptolithus). Déchograpsws Salter, 1863. Good 
genus. 
abnormis (Hall), 1858. 
flexilis (Hall), 1858. 
logani (Hall), 1858. 
? milesi (Hall), 1861. 
octobrachiatus (Hall), 1858. 
octonarius (Hall), 1858. 
proximatus Matthew, 1895. 
ramulus (Hall), 1865. 
remotus Gurley, sp. nov. 
rigidus (Hall), 1858. 
Dicranograptus Hall, 1865. Dicranograptus Hall, 1865. 
clingani Carruthers, 1868. 
dissimilaris (Emmons), 1856. 
divaricatus Hall, 1859. Dicellograpsus divaricatus. 
