396 Dr. H. Woodioard — Cretaceous Canadian Crustacea. 



portions of the ambulatory feet and the bases of the inner and outer 

 antennae preserved. This interesting fossil is now in the Museum 

 of the Geological Survey of Canada. [See PI. XV, Fig. 1.] 



[No. 3.] " Hornby Island, W. Harvey, 1893 : a less perfectly 

 preserved specimen, showing most of the carapace (but not the 

 rostrum), portions of the ambulatory feet, and the dorsal aspect of 

 five segments of the abdomen (their margins were denticulated). 



" In 1884 (Trans. Koy. Soc. Canada) the writer [Dr. J. F. Whiteaves] 

 described a long-tailed decapod crustacean from the Cretaceous rocks 

 at the Highwood Kiver in Alberta, under the provisional name 

 Soplopavia (?) Canadensis. Dr. C. Schliiter, of Bonn, Germany, 

 in a letter dated February 20, 1890, expresses the opinion, which 

 appears to be well founded, that this species, which is figured on 

 plate ii of the first pai't of the first volume of 'Contributions to 

 Canadian Paleeontology,' is a Podocrates, closely allied to, if not 

 identical with, the P. Dillmensis of Becks. P. Vancouverensis seems 

 to differ from that species in the much smaller proportionate size of 

 the tubercles on the three longitudinal ridges on its carapace, 

 especially posteriorly, and in the difl"erent arrangement of the 

 distant spinose tubercles on the anterior moiety of its cephalic arch." 



The publication of Dr. Ortmann's paper (American Journal of 

 Science, ser. iv, vol. iv, 1897, pp. 290-297, figs. 1-4) makes us 

 acquainted with another species of Palinurid, which he names 

 Linuparus atavus, from the Upper Cretaceous of Cotton Wood 

 Creek, Mead Co., South Dakota. 



There is no doubt that this form is closely related generically 

 with P. Canadensis, P. Vancouverensis, Whiteaves, and also with 

 P. Dulmenensis, Schliiter, and that for all these species Adam White's 

 genus Linuparus (1847) takes priority over the other genera to 

 which they have heretofore been referred by various authors. 



Formation : Upper Cretaceous. 



Locality : Puntledge or Comox Kiver (Fig. 1), Hornby Island 

 (Fig. 2), Comox River (Fig. 3), British Columbia. 



In the " Contributions to Canadian PalEeontology " for 1885, 

 vol. i, pp. 87-89, pi. xi, Dr. J. F. Whiteaves, F.G.S., published the 

 following description of P. Canadensis, a decapod Crustacean from 

 the Upper Cretaceous of Highwood River, Alberta, N.W.T., which 

 we here reproduce : — 



Linuparus (Podoceatbs) Canadensis, Whiteaves, sp., ^ 



Hoploparia (?) Canadensis, Whiteaves, ISSiT^ ' '■> 



" The fossil, which it is the more immediate object of this paper . 

 to describe, is a rather remarkable example of a macrourous decapod 

 crustacean, collected by Mr. R. G. McGonnell in 1882 from the 

 Cretaceous shales of the Highwood River, a tributary of the Bow, 

 ten miles west of the first fork. 



"The specimen originally consisted of an elongate - oval and 



1 Trans. Eoy. Soc. Canada, vol. ii (1884), sect. 4, pp. 237, 238. 



