[WHITEAVES] VANCOUVER CRETACEOUS FOSSILS 133 
the largest tubercle on each of the lateral ridges, and still farther for- 
ward there are two similar tubercles at a short distance from the anterior 
margin and about seven millimetres apart. On the posterior portion, or 
scapular arch, the three longitudinal ridges are minutely tuberculated, 
and extend from the posterior margin to the cervical groove, where they 
each terminate in a pointed tubercle larger than any of the rest, but the 
central ridge is shorter than either of the two lateral ridges. Antero- 
lateral angles of the carapace each armed with a nearly straight but 
slightly divergent spine. Rostrum, central portion of the anterior mar- 
gin and position of the eyes unknown. External antennæ broad and 
flattened at their bases, inner antenne cylindrical at theirs. 
Walking feet slender, as is usual in the genus. 
In addition to the spines and tubercles on the lateral ridges and else- 
where, as already described, the whole of the upper surface of the cara- 
pace is minutely granulose and apparently setose, the perforations at the 
summits of each of the granules and numbers of minute objects, which 
seem to be detached sete, being plainly visible under an ordinary lens. 
Two miles up the Puntledge River, Vancouver Island, Rev. G. W. 
Taylor, 1889: a good specimen of the carapace, with the rostrum and a 
small piece of the anterior portion broken off, but with considerable por- 
tions of the ambulatory feet and the bases of the inner and outer antennæ 
preserved. This interesting fossil is now in the Museum of the Geological 
Survey of Canada. 
Hornby Island, W. Harvey, 1893: a less perfectly preserved speci- 
men, showing most of the carapace (but not the rostrum), portions of 
the ambulatory feet, and the dorsal aspect of four segments of the abdo- 
men, though it is uncertain whether their margins were denticulated or 
not. 
In the second volume of Transactions of this Society the writer 
described a long-tailed decapod crustacean from the Cretaceous rocks at 
the Highwood River in Alberta, under the provisional name Hoplo- 
paria (?) Canadensis. Dr. C. Schluter, 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 11 of the first part 
of the first volume of “Contributions to Canadian Paleontology,” is a 
Podocrates, closely allied to, if not identical with, the P. Diilmensis of 
Becks. Podocrates Canadensis, as it should now be called, may prove to 
be only a local variety of P. Diilmensis, but 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 pos- 
teriorly, and in the different arrangement of the distant spinose tubercles 
on the anterior moiety of its cephalic arch. 
