658 NEW YORK STATE MUSEUM 



Tetragraptus similis Hall (sp.) 



Plate 12, flerures 8-10 



Phyllograptas similis Hall. Geol. Sur. Can. Rep't for 1857. 1858. p.UO 

 Didymograpsus caduceus Salter? Quar. Jour. Geol. Soc. 1863. 19:137, 



%.13b(?) 

 Graptolithus bigsbyi Hall. Canadian Organic Remains, decade 2. 1865. 



p.86, pl.l6, tig.22-30 

 Didymograptus caduceus Nicholson. Quar. Jour. Geol. Soc. 1868. 24:133 

 Tetragraptus bryonoides Etheridge jr. Ann. and Mag. Nat. Hist. 8er.4. 



1874. 14:2, pl.3, fig.l, 2; non fig.3, 4 

 Tetragraptus bigsbyi Liniiarsson. Sver. Geol. Und. 1879. Afh. och upps. 



ser.C, no.31, p.5 

 Tetragraptus bigsbyi TuUberg. Fbid. 18S2 ser.C, no.50, p.22 

 Tetragraptus caduceus Brogger. Die sil. Etiigen 2 and 3. 1882. p.38 

 Tetragraptus bigsbyi Ami. Geol. Sur. Can. Rep't, 8er.2. 1889. v.3, pt2, 



p.ll6k 

 Tetragraptus caduceus Perner. Etudes sur les Grapt. de Bobeme, pt2. 1894, 



p.20, pl.6, lig.9-12 

 Tetragraptus bigsbyi Holm. Sver. Geol. Und. 1895. Afh. och upps. 



ser.C, no.l50, p.24, pl.l, fig.9-16; pl.2, flg.1-3 ; pi 3, iig.13-16 

 Tetragraptus bigsbyi Holm. Geol. Mag. Dec. 4, 1895. 2:484, pl.l3, fig.9-16; 



pl.l4, fig 13-16 ; p.485, Bg.1-3 

 Tetragraptus bigsbyi Gurley. Jour. Geol. 1896. 4:294 

 Tetragraptus bigsbyi Roemer & Freeh. Lethaea palaeozoica. 1897. 1:600, 



601, fig.166 

 Tetragraptus bigsbyi Elles. Quar. Jour. Geol. Soc. 1898. 54:488 

 Tetragraptus bigsbyi Ruedemann. N. Y. State Paleontol. An. Rep't. 1902. 



p.556, 566 

 Tetragraptus bigsbyi Elles & Wood. Monogr. Brit. Grapt. ptl. Pal. Soc. for 



1902. 1902. p.68, pl.6, fig.6a-e 

 Non Didymograpsus caduceus Salter. Quar. Jour. Geol. Soc. 1853. 9:87, 



fig.la 

 Non Graptolites (Didymograpsus) caduceus McCoy. Prodr. Pal. Vic- 

 toria, decade 1. 1875. p.l6, pl.2, fig.2, 3, 5 

 Non Tetragraptus bigsbyi Ruedemann. N. Y. State Paleontol. An. Rep't. 



1902. p.590,ag.l8 



