FROM LOWER PALÆOZOIC ROCKS. 
Half a mile above Cap Rouge. 
Climacograptus antiquus, Lapw. 
ce 
sp. 
a bicornis, Hall. 
Diplograptus rugosus, Hmm. 
ue confr. putillus, Hall. 
a foliaceus, Murch. (pristis, Hall.) 
Dicranograptus ramosus, Hall (destitute of spines.) 
Dicellograptus divaricatus, Hall. 
Œ intortus, Lapw. 
os sextans, Hall. 
Cenograptus gracilis, Hall. 
Lasiograptus bimucronatus, Wich. 
mucronatus, Hall. 
Didymograptus sagittarius, Hall. 
Barrasois Brook, Cape Breton Island. 
Dictyonema sociale, Salter (= D. flabelliforme, Hichwald.) 
181 
