. On some podophthalmatous crustacea from the cretaceous formation of Vancouver and Queen Charlotte Islands [microform]. Crustacea, Fossil; Crustacés fossiles. Vol. 52.] FROM BRITl^a COLUMBIA. 225. This species has many points of resemblance to Reuss's Prosopon verrucosum, from which, however, it differs in the greater anterior breadth of lleuss's specimen, and in the form of the rostrum and arrangement of the furrows upon the gastric and cardiac regions. Reuss's P. verrucosum should probably be placed in Bell's genus Homolopsis. In Homolopsis Edwardsii, Bell, from the Gault of Folkestone, the
. On some podophthalmatous crustacea from the cretaceous formation of Vancouver and Queen Charlotte Islands [microform]. Crustacea, Fossil; Crustacés fossiles. Vol. 52.] FROM BRITl^a COLUMBIA. 225. This species has many points of resemblance to Reuss's Prosopon verrucosum, from which, however, it differs in the greater anterior breadth of lleuss's specimen, and in the form of the rostrum and arrangement of the furrows upon the gastric and cardiac regions. Reuss's P. verrucosum should probably be placed in Bell's genus Homolopsis. In Homolopsis Edwardsii, Bell, from the Gault of Folkestone, the frontal border is broader and the carapace more quadrate than in the North American form, which is pointed in front; the anterior half of the carapace in If, Edwardsii is more coarsely ornamented with fewer and larger tubercles, and the arrangement of the lobes differs considerably from that in H. Richardsoni. I would refer this specimen to Homolopsis, and dedicate the species to the discoverer, Mr. James Richardson. The specimen is from the Museum of the Geological Survey of Canada, Ottawa. Legion Oxystomata. Family Corystidae. Genus Pal^ocortstes, Bell. In this genus the carapace is longer than broad, flattish, becoming narrower gradually towards the posterior border, rostrum short, latero-anterior border dentated. Orbits moderately broad, with two fissures. The carapace in all the species of this genus at present known is similar to that of the masked crab, Corystes, now living on our English coasts. 3. Palceocorystes Harveyi, sp. nov. (Fig. 4, p. 226.) The genus Palceocorystes, to which I have referred two of the specimens sent to me by Mr. Whiteaves, is well represented in the Gault, Greensand, Chalk, and Eocene. Thus we have :— Palaocan/stes Broderipii, Mantell, sp.; Gault, Folkestone. Stokesii, Mantell, sp. ; Gault and Greensand, Cambridge and Folkestone. iVormaww, Bell; Chalk Marl, Isle of Wight. Miilleri, Bink; Upper Chalk, Maestricht. Callia7iassarum, Fritsch; Cha
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