and remarks on the Genus Papilio. 419 



Turton's Translation of Gmelin's Edition of the Systema Naturae of Lin- 

 naeus (Insects, vols.. 3 and 4). *l vols., 8 to. Lib. Mont. Nat. 

 Hist. Society. 



Short descriptions of the Lepidoptera of the world, known at 

 the time of publication, with their Habitats, &c. 



Westwood, J. 0. Introduction to the Modern Classification of Insects. 

 2 vols., 8 vo., with 133 illustrations on wood. Price in London > 

 18s. Lib. of P. Parliament, Toronto. 



A most useful work, now, I believe, nearly out of print. It is 

 the best work of its kind ever published, and almost indispensable 

 to any one wishing to investigate the Classification of insects in 

 general. It contains figures of the Larvae and Pupae of every fa. 

 mily of Butterflies. 



The valuable works of Dr. Thaddeus Harris, Insects of Massachusetts 

 injurious to vegetation, 1841, Treatise on the Insects of New 

 England. 8vo. Cambridge, 1842, &c, are very scarce, and I 

 have not as yet been fortunate enough to meet with them. 



The prices of some of the above works have been derived from 

 the Catalogue of Standard and Recent Books on Natural History 

 of H. Bailliere, 290 Broadway, N. York. 



For numerous modern works on the Lepidoptera of the world, 

 and of which I know of no copies to be found in Canada, I must 

 refer the reader to Stainton's Entomologist's Annuals for 1855 

 — 56 — 57 — 58 (price of each in London, 2s. 6d.), which contain 

 a variety of useful information concerning the study of Entomo- 

 logy. 



William Stewart M. d'Urban. 



Montreal, November 22nd, 1858. 



ARTICLE XXXIV.— New Genera and Species of Fossils from 

 the Silurian and Devonian formations of Canada. By E. 

 Billings, F. G. S. &c. 



(By the kind permission of Sir W. E. Logan, the following article ha3 

 been extracted from the Report of the Geological Survey of Canada 

 for 1857.) 



Genus Fistulipora (McCoy). 



(McCoy, British Palceozoic Fossils, p. 11.) 



Generic Characters. — " Corallum incrusting, or forming large 



masses, composed of long, simple, cylindrical, thick-walled tubes 



the mouths of which open as simple, equal, circular smooth-edged 



cells on the surface, and have numerous transverse diaphragms at 



