528 



INDEX. 



Climacograptus minimus 

 minutus 



— parvulus 

 perexcavatus 



— ramosus 



191 ; XXVII, 1 

 211 ; XXVII, 12 



264 



267 



175 



rectangularis 187, 190 ; XXVI, 5 



scalaris 184, 189 ; XXVI, 1 



— ■ var. caudatus ... 202 



— var. miserabilis 



186 ; XXVI, 3 



— var. normalis 



186 ; XXVI, 2 

 var. rectangularis 



187, 190 



— — var. tubuliferus ... 203 

 Scharenbergi 206 ; XXVII, 14 

 styloideus ... 205 ; XXVII, 9 

 supernus ... 196; XXVI, 11 

 teretiusculus ... ... Is9 



Turnquisti ... 190; XXVE, 6 

 tuberculatus 213; XXVI, 7 

 tubuliferus ... 203 ; XXVEI, 8 

 typicalis 271 



— undulatus ... .. ... 208 



Wilsoni ... 197; XXVI, 12 



— var. tubularis 



199 ; XXVI, 13 

 Clonograptus ... ... ... ... ... 82 



tenellus 83 ; XI, 2 



— var. Callavei... 84; XI, 3 

 Coenograptus ... ... ... ... ... 125 



explanatus ... ... ... 133 



— gracilis ... ... ... 127 



nitidulus ... ... ... 131 



— pertenuis ... ... ... 134 



— surcularis ... ... ... 129 



Coign ... ... ... ... ... ... 6 



Common canal ... ... ... ...6,7 



Crossing canal ... ... ... ...6,7 



Cryptograptus ... ... ... ... 295 



antennarius ... 300; XXXII, 14 

 Hopkinsoui ... 299; XXXII, 15 

 tricornis ... 296; XXXII, 12 

 var. Schaferi 



299 ; XXXII, 13 

 C\ rtograptus . . . ... ... ... 504,513 



Carruthersi 512; LII, 4 



Grayi 512; LII, 5 



hamatus ... ... 510; LII, 3 



Cyrtograptus Linnarssoni 

 — Luudgreni 



Murchisoni 

 rigidus... 

 symmetricus 



.. 511; LI, 4 

 .507; LII, 1 

 . . 505 ; LI, 3 

 .. 508; LII, 2 

 .. 509; LL 5 



Demirastrites urceolus 

 Dendrograpsus linearis 

 Denticle 

 Dicellograptus 



affinis... 



— anceps 



— angulatus 

 caduceus 

 coniplanatus 



470 



119 



6 



136 



... 146 



141; XX, 3 



149; XXI, 4 

 161 ; XXIII, 4 



139; XX, 1 



var. ornatus 



140; XX, 2 

 divaricatus ... ... 143; XX, 5 



var. rigidus 



144 ; XX, 6 



— var. salopiensi* 



145 ; XX, 7 

 elegans 159 ; XXIII, 2 



— var. rigens 161 ; XXIII, 3 

 Forckammeri 150 ; XXII, 1 



— var. flexuosus 



152 ; XXII, 2 



intortus 146; XX, 4 



moffatensis .143, 157; XXIII, 1 



— var. divaricatus . . . 144 



— Morrisi 





155 



; XXI, 6 



patulosus 





147 



; XXI, 5 



— pumilus 





149 



; XXI, 3 



— sextans 





153 



; XXI, ] 



— — var. 



exilis 



155 



; XXI, 2 



Dichograptidse 







5 



Dichograptus ... 







76 



arauea... 







... 77 



fragilis 







... 91 



— Logani 







... 81 



— multiplex 







... 86 



octobracbiat 



us 



77; 



IX, X, 1 



— — 



var. 



Sedgwicki 









79 ; X, 3 



— reticulatus 







... 71 



■ — Sedgwicki 







... 79 



— separatus 







80 ; X. 4 



tenellus 







... 83 



1 >ichotomous branckirig' 







... 70 



