245 



Compare especially Pictet and Campiche's description and figures of that 

 species in the " Paleontologie Suisse, Fossiles du Terrain Cretace des environs de 

 Sainte-Croix, 4me. partie," p. 311, pi. 194, figs. 1-6.) 



East end of Maud Island, very abundant : South sideof Allifbvd Bay, 

 three good specimens. 



The convex valve of the GrypJuEa from the above mentioned localities, 

 which is the one most commonly preserved, is very variable in its shape 

 and surface ornamentation. In most of the specimens of the larger 

 valve collected by Dr. Dawson the beak is acute, but in others the umbo 

 is distinctly truncated and shows a scar of attachment. The convex 

 valve of some individuals again is evenly rounded on the back and 

 entirely devoid of longitudinal grooves or furrows, but in others the 

 corresponding valve is impressed by a single sulcus, or by two, and in 

 one instance by as many as three radiating and widely distant sulci. 

 The surface of all the specimens of the convex valve collected at the 

 Queen Charlotte Islands is marked by tlexuous and concentric lines of 

 growth, but in some the umbonal region is marked also by irregular 

 longitudinal striae which (as Prof. Whitfield remarks, op. cit. p. 349), 

 " continue to below the middle of the valve," while in others the longi- 

 tudinal strise are altogether absent. 



The specimens in which the longitudinal stria3 are well shown agree 

 perfectly with the descriptions and figures of Gryphoea Nebrascensis by 

 the authors above cited, but othei-s in which those striie are absent can 

 scarcely be distinguished from the G. vesiculosa as described and figured 

 by Pictet & Campicb^. 



]\L-. Meek regarded the G. Nebrascensis as probably a variety of the 

 G. calceola of Quenstedt, but for the reasons just stated it seems quite as 

 likely that it will prove to be conspecific with the G. vesiculosa of 

 Pictet & Campich^, if not with the true G. vesiculosa of Sowerby. 



BEACHIOPODA. 



(?) Terebratella obesa, Gabb. 



Terebratella obesa, Gabb. ..1864. Paleontology of California, Vol. 1, p. 205, pi. 

 26, figs. 194 and 194«, b. 



South side of Alliford Bay : one nearly perfect but partly exfoliated 

 dorsal valve, which measures about twenty mm. in breadth by thirteen 

 in length, and whose surface is marked by from twenty to twenty-two 

 subangular ribs, also a smaller example with both valves, but with the 



