313 



the most striking features of this fauna, as indicated by the collections 

 received since 1879 : — 



1. Fishes. Indications of a true teleost, and of at least one species 

 of Selachii. 



2. Crustacea. The comparatively large number of species of Deca- 

 poda.nine of which have recently been described by Dr. Henry Woodward. 



3. Ammonitida'. An unusually large development of the genus Fachy- 

 discus, both in specimens and in species. Not less than eight species of 

 this genus are either enumerated or described in these pages. Curiously 

 enough, no species of Fachydiscus has yet been discovered in the Cretace- 

 ous rocks of the Queen Charlotte Islands, though it is difficult to see 

 what generic distinction tliere is between the Fachydiscus Keivherryanus 

 of the Vancouver, and the Desmoceras pfanulatum of the Queen Char- 

 lotte Island Cretaceous. Specimens of a species of Baculites are common 

 in the Nanaimo group, but no Baculites have as yet been found in the 

 Qneen Charlotte Island Crefcaceou?. 



4. Gasteropoda. The occurrence of a small smooth species of Cyprcea ; 

 of three large species that are probably referable to Deshayes' genus 

 Mesostoma ; of a Solariella that is scarcely distinct from the S. radiatida 

 (Forbes) of the Cretaceous rocks of Saghalien and Southern India ; and 

 of a large limpet-like shell that is probably only a variety of the Helcion 

 giganteus of the Saghalien Cretaceous. 



5. Felecypoda. The discovery of a Unio that is apparently distinct 

 from the U. Huhbardi, Gabb, of the Queen Charlotte Island Cretaceous, 

 and a considerable reduction* in the number of species of Inoceramus, 

 both the supposed /. undidaloplicatus of Roemer and /. mytilopsis of 

 Conrad being now regarded as forms of /. digitatus (Sowerby) Schmidt, 

 from the Cretaceous of Texas, Saghalien and Nebraska. 



In 1896, ten specimens and six photographs of various species of Am- 

 monites, mostly critical species of Fachydiscus, from the Nanaimo group, 

 were sent to Dr. Franz Kossmat, of Vienna, for direct comparison with 

 certain species from Southern India, and Europe. Some interesting notes 

 upon each of these specimens have been kindly communicated by Di-. 

 Kossmat, and, with his permission, most of these notes are here qu6ted in 

 full, in their proper place in these pages. 



The writer, also, is greatly indebted to Dr. T. W. Stanton, of the U.S. 

 Geological Survey, for comparing several critical fossils from the Nanaimo 

 group, with Californian specimens in the U. S. National Museum ; and 

 to Mr. F. M. Anderson, for comparing fossils from the Vancouver Cre- 

 taceous, with some of Mr. Gabb's types and other specimens in the 

 Geological Museum of the University of California at Berkeley. 



