225 



varieties of the Panopea Neocomiensis of d'Orbigny, as representee 

 the " Paldontologie Fj-angaise " or the " Pal(5ontoU">gie Suisse." 



GoNioMYA. (Species undetei-ininable.) 



South side of Alliford Bay, a very small but well preserved cast, 

 which measures nine millimetres in length by about six or seven in 

 height. A similar specimen has been collected in the Upper Neoco- 

 mian rocks of the valley of the Fraser Eiver. 



Tellina Skideoatensis. (N. Sp.) 

 Plate 30, figs. 2, 2a, and 2f>. 



Shell thin, compressed, transversely elongated, the length being 

 about one-third greater than the height : lateral outline varying in 

 different specimens from ovately and Ijroadlj^ sit])triangular to trans- 

 versely subelliptical. Anterior end somewhat pointed or narrowly 

 rounded : posterior end always a little longer than the anterior, sub- 

 truncated and narrowing gradually both above and below, or rounded 

 below and obtusely subangular above. Superior border sloping con- 

 cavely and rather rapidly downwards in front of the beaks, straighter 

 and descending more gradually behind : ventral margin broadly 

 rounded. Beaks moderately prominent, curved inwards and forwards 

 and placed a little in advance of the middle. 



Surface closely and concentrically costulate. 



Pallial sinus very obscurely indicated, but apparently broad and 

 rather deep. 



Length of a left valve with the test preserved, twenty-six milli- 

 metres : maximum height of the same, seventeen mm. In a larger 

 cast the length is forty-one millimetres and the greatest height 

 twenty-six. 



Bear Skin Bay, Skidegate Inlet : four or five specimens. 



This shell probably does not belong to the typical section of the 

 genus Tellina, as exemplified by the recent T. radiata of Linnseus and 

 two or three others, but to the subgenus TelUnella or Perormoderma. 

 It approaches the TelUnella jjetrosa of Stoliczka,* from the Cretaceous 

 rocks of S. India, in many of its characters, especially in its surface 

 ornamentation, but it is much less pointed at each extremity. 



Two casts of single valves of a small Tellina which may possibly be 



* Pal. Indica. Cret. Faun. S. India. Vol. 3, p. 125, pi. 16, figs. 27-28. 



