NORTH AMERICAN GRAPTOLITES 93 
Bythograptus Hall, 1861. 
laxus Hall, 1861. 
Callograptus Hall, 1865. 
elegans Hall, 1865. 
granti Spencer, 1884. 
minutus Spencer, 1884, 
multicaulis Spencer, 1884. 
niagarensis Spencer, 1878. 
salteri Hall, 1865. 
Calyptograptus Spencer, 1878. 
cyathiformis Spencer, 1878. 
[Omitted entirely. | 
[Omitted entirely. ] 
subretiformis Spencer, 1878. 
Cladograpsus Geinitz, 1852. 
dissimilaris Emmons, 1856. 
inequalis Emmons, 1856. 
Climacograptus Hall, 1865. 
antennarius Hall, 1863-5. 
bicornis Hall, 1847. 
emmonsi Walcott, 1886. 
[Bryograptus Lapworth—cont'd. | 
multtramosus Gurley, sp. nov. 
patens Matthew, 1893.° 
spinosus (Matthew), 1893.77 
Buthograptus Hall, 1861. 
laxus Hall, 1861. 
Callograptus Hall, 1865. 
elegans Hall, 1865. 
granti Spencer, 1884. 
minutus Spencer, 1884. 
multicaulis Spencer, 1884. 
niagarensis Spencer, 1878. 
salteri Hall, 1865. 
Calyptograpsus Spencer, 1878. 
cyathiformis Spencer, 1878. 
micronematodes Spencer, 1884. 
radiatus Spencer, 1884. 
subretiformis Spencer, 1884. 
Caryocaris Salter, 1863. 
curvilatus Gurley, sp. nov. 
oblongus Gurley, sp. nov. 
wright Salter, 1863. 
[Never properly defined; should be 
dropped. | 
Dicranograptus dissimilaris. 
Dicranograptus ? inequalis. 
Clathrograptus Lapworth, 1873. 
cuneiformis Lapworth, 1873. 
Clematograptus Hopkinson, 1875,? 
Type C. multifasciatus. 
multifasciatus (Hall), 1859. 
Climacograptus Hall, 1865. 
Cryptograptus antennarius. 
antiguus Lapworth, sp. nov. 
bicornis (Hall), 1847. 
peltifer Lapworth, 1876.3 
tridentatus Lapworth, 1876.3 
caelatus Lapworth, 1875. 
caudatus Lapworth, 1876. 
laticaulis Gurley, var. nov. 
confertus Lapworth, 1875. 
? ?emmonsi Walcott, 1886. 
