249 

 GASTEEOPODA. 



PLEUROTOMARIA SKIDEGATENSIS, "VVhiteaves. 



Plewrotomaria Skidegatcnsis. 1876. This volume, p. 51, pi. 9, figs. 6 and 6a. 



South side of Maud Island : one imperfect and badly preserved but 

 characteristic specimen. 



Cinulia. (Species Undeterminable.) 



South side of Maud Island : a cast of the body whorl and part of the 

 preceding volution of a subcylindrical and apparently undescribed 

 species with a rather long spire. Very similar specimens, which pro- 

 bably belong to the same species, were collected in the Lower Shales 

 of Skidegate Inlet by Mr. James Eichardson in 1872. 



LAMELLIBEANCHIATA. 

 PLEUROMYA SUBCOMPRESSA, Meek, VAR. L^EVIGATA. 



Plate 33, fig 3. 

 For the synonymy of this shell see page 222. 



South side of Maud Island, one very perfect and undistorted cast and 

 a fragment of another. The best specimen from this locality differs a 

 little from the smooth forms of P. subcompressa collected from the 

 Lower Shales of Alliford Bay and described on page 224, in being pro- 

 portionately broader in the direction of their height and in not being so 

 angular on the anterior and posterior umbonal slopes. 



A precisely similar example to the one from Maud Island was 

 collected by Mr. G. M. Dawson at the Iltasyouco Eiver in 18*76. 



CARDIUM TUMIDULUM. (N. Sp.) 



Plate 33, fig. 4. 







Shell extremely small for the genus, strongly convex and very tumid 

 in the middle, obliquely compressed at the sides, especially above : 

 greatest thickness through the closed valves about equal to their maxi- 



