168 



"A single specimen only of this shell has come under my observation. 

 It is somewhat mntilated, the extremities being broken off and the sur- 

 face more or less exfoliated. An examination of more perfect individuals 

 may therefore render it necessary to slightly modify the above descrip- 

 tion." 



" For. and Loc. — Cretaceous formation of Kanaimo Eiver, Vancouver 

 Island. The fragment of rock in which the specimen was embedded is a 

 dark, greenish, argillaceous, sandy-textured limestone, with dark, igneous 

 pebbles disseminated through it." Shumard. 



Six well-preserved fragments of this species were collected by Mr. 

 Eichardson in 1874, at the Sucia Islands, in Division A, but they give 

 very little additional information as to its characters. The cardinal 

 margin and the shell itself both seem to be straight and not arcuate or 

 curved, and the outline of a portion very near to the anterior termination 

 of the valves, indicates that the beaks were probably narrow and acute 

 rather than rounded. Pinna Breweriana of Gabb, fi-om the Chico Group 

 of California, is very closely allied to the present shell, and may prove 

 to be identical with it. 



(Meleagrtna antiqua, Gabk. 



Meleagrina antiqua, Gabb. — Pal. Cal., Vol. II., p. 192, pi. 31, fig. 89. 



"Prom Departure Bay, Nanaimo, Vancouver Island, associated with 

 Trigonia JSvansana, Pecten Traskii, and other fossils equally characteris- 

 tic of the Chico Group." Gabb. No specimens of this shell were col- 

 lected hj Mr. Eichardson.) 



Inoceramus undulato-plicatus, Ecemer. 



Plate 20, figures 2 and 2a. 

 Inoceramus undulato-plicatus, Kccmer. — Die Kreidebildungou von Texas (1852) p. 59, 



pl. 7, fig. I. 



" Testa oblique ovata, subtetragona, parum convexa, concentrice irre- 

 gulariter striata, radiatim undulato-plicata; plicis latis, parum elevatis, 

 subnodosis, a linea testae diagonali ad pei'ipheiiam divergentibus, subar- 

 cuatis. Strato superiore fibroso testa3 tenui." At the waterfall of the 

 Guadalupe below New-Braunfels, Texas. Eoemer. 



" Septarian clays at J^anaimo and Valdez Inlet: " Etheridge. Lower 

 Shales, Division B, at Sable Eiver, V. I., not very common ; Productive 

 Coal Measures, Division A, at Blunden Point and North West Bay, V. I., 

 abundant, perfect, and in fine condition ; J. Richardson, 1871 and 1872. 



A peculiarly sculptured shell, not likely to be mistaken for any 



