Dil 
LIST OF SPECIES. 
The Spirifer Arenosus Fauna. 
(List of species from the northern exposure of limestone 
in the northeast part of the area of the limestone breccia, 
St. Helen’s island.) 
Chaetetes spericus, Hall. Eatonia, cf. Whitfieldi, Hall. 
Small crinoid stems. Spirifer arenosus, Conrad. 
Orthis (Rhipidomella), cf. oblata, Spirifer Montrealensis sp. nov. 
Hall. H.S.W. 
Orthis (Dalmanella) subcarinata, Spirifer gaspensis, Billings. 
Hall. Spirifer cumberlandiz, Hall. 
Orthis (Dalmanella), cf. quadrans Spirifer cyclopterus, Billings (not 
Hall. Hall? = S. tribulis, Hall). 
Leptena rhomboidalis, Wilckens. Cyrtina rostrata, Hall. 
Orthothetes, cf. Woolworthana, Metaplasia pyxidata, Hall. 
Hall. Modiomorpha Helena sp. nov. (cf. 
Chonetes hudsonicus metytype concentrica. ) 
Gaspensis, Clarke. Palezoneilo (‘‘cf. maxima, Clarke’’) 
Chonetes striatissimus, W. & B. Helena sp. nov. 
(‘‘cf. canadensis, small var,’ Tentaculites Schlotheimi, Koken, 
Bill). cf. T. elongatus, Hall. 
? Camaroteechia sp. indet. Spirifer pennatus, var. Helene, H.- 
Uncinulus, cf. mutabilis, Hall. S.W. (See McGill College Gol 
Rhynchonella eminens, Hall. lection, specimen No. 3644.) 
at peculiaris, Hall (narrow 
var.). 
The Gypidula Pseudogaleata Fauna. 
(List of species from the southern exposure of lime- 
stone, the part to the west of the dyke in the breccia.) 
Lichenalia, cf. torta, Hall. Strophonella (Amphistrophia), con- 
Fenestella, sp. incert. tinens, Clarke. 
Crinoid stems. Strophonella Leavenworthana, Hall. 
Dalmanella, cf. subcarinata, Hall. Orthothetes, cf. deformis, Hall. 
Dalmanella concinna, Hall. Gypidula pseudogaleata, Hall. 
Schizophoria multistriata, Hall. Uncinulus planoconvexa, Hall. 
Rhipidomella oblata, Hall. Camaroteechia ventricosa, Hall. 
Orthostrophia strophomenoides, Rhynchotrema formosum, Hall. 
Hall. Spirifer concinnus, Hall. 
Leptena rhomboidalis, Wilckens. Spirifer concinnus, var. Helene, v. 
Stropheodonta arata, Hall. nov. 
Stropheodonta planulata, Hall. Cyrtina Dalmani, Hall. 
= S. blainvillei, Billings. Atrypa reticularis (Linnzus). 
= S. perplana, Hall. Meristella princeps, Hall. 
Stropheodonta Beckii, Hall. Merista levis (Vanuxem). 
Stophonella punctulifera, Conrad. Rensseleria, cf. mutabilis, Hall. 
Strophonella cavumbona, Hall. Platyceras, cf. clavatum, Hall. 
