297 

 Inoceramus concentricus, Parkinson. 



InoccratMis concentricus, Parkinson. 1820. Trans. Geol. Soc. Lond., vol. v, p. TjS, pi. 1, 

 fig. 4. 



Sowerby. 1821. Min. Conch., vol. in, p. 18.3, pi. 305 : and of 

 numerous other European paleontologists. 

 " " Whiteaves. 1876. This volume, pt. 1, p. 79 ; and (1884) pt. 3, 



p. 241. 



Three miles north- west from Yakoun Lake, on the Rennel Sound Trail: 

 several specimens of a large variety, with unusually coarse concentric 

 plications, collected by Mr. Robertson in 1894, — and one fairly typical 

 specimen collected by Mr. S. Pearse in that year ; all kindly lent to the 

 writer by Dr. Newcombe for comparison and identification. 



AuCELLA CRASSicoLLis (Keyserling) Stanton. 



Aucella Piochii, (j-ahh, l?t&d. (In part. ) Geol. Surv. Calif., Palceont., vol. ii, p. 194, 



pi. 32, figs. 92,a-c. 

 1. .. Whiteaves. 1882. (In part.) Trans. Royal Soc. Canada, vol. i, sect. 



4, p. 84. 



Whiteaves. 1884. This volume, pt. 3, p. 239. 

 Aucella concentrica (Fischer) White. 1884. Bull. IT. S. Geol. Surv., No. 4, p. 13, pi. 6, 



figs. 2-12 ; and (1885) No. 15, p. 23. 

 AuccUa Piochii, Whiteaves. 1887. (In part.) Geol. and Nat. Hist. Surv. Canada, 



vol. n, N.S., p. 11 iB. 

 Aucella concentrica (Fischer) White. 1889. (In part.) Men. U. S. Geol. Surv., No. 



13, p. 231, pi. 4, figs. 3-5, 11-17, and 21. 

 Aucella crassicoUis (Keyserling) Stanton. 1896. Bull. U.S. Geol. Surv., No. 1.33, p. 45, 



pi. 5, figs. 1-13 ; pi. 6, figs. 1-.5. 



Skidegate Channel, west of AUiford Bay, J. Richardson, 1872 : the 

 specimen referred to on page 239 of the third part of this volume. 



The very obscure fossil that was doubtfully referred to Aucella Mos- 

 quensis on pages 74 and 75 of the first part of this volume and figured on 

 Plate 10, figs. 3 and 3 a, is too badly preserved and too much worn to be 

 determined even generically. It is quite possible that it may not be an 

 Aticella. 



Gervillea Newcombii. (N. Sp.) 



Plate 39, fig. 1. 



Shell large, attaining to a maximum diameter of fully six inches, ob- 

 liquely sublanceolate, about one-third longer than high, with a large 

 broad posterior wing, and a narrow, pointed, horizontally prolonged 

 anterior one ; nearly equivalve, the right valve almost as convex as the 

 left, very little if at all twisted, the postei'o-basal extremity of the left 

 valve of the only adult specimen that the writer has seen being curved a 

 little outward. 



