134 BULLETIN 138, UNITED STATES NATIONAL MUSEUM 



GLYPHEA, species, Whitcaves 



Glyphaea sp. nov., Whiteaves, Mesozoic fossils, vol. 1, pt. 5 ; Geol. Sur. 

 Canada, Ottawa, 1903, p. 323. 



Occwv^ence. — British Columbia; Nanaimo, Vancouver Island. 

 Cretaceous. 



Superfamily SCYLLARIDEA Stebbing 



Family PALINURIDAE Gray 



Carapace subcylindrical, fused at sides to epistome. Rostrum 

 small or wanting. Eyes not enclosed in separate orbits formed by 

 edge of carapace. First joint of second antenna fused with epi- 

 stome; flagellum long, cylindrical, rigid, multiarticulate. None of 

 the legs much longer than the rest, or, except sometimes the first 

 pair, chelate. Tail-fan divided by indistinct sutures into a soft 

 hinder half and a harder front half. Telson roughly square behind. 



Genus PODOCRATUS (Becks MS.) Geinitz 



Podocratus Becks MS., in Geinitz, Das Quadersandsteingebirge oder 

 Kreidegebirge in Deutschland, Freiberg, 1849, p. 96 ; type, P. diilmense 

 Becks. 



Podocrates Schlutee, Zeitschr. deut. geol. Gesell., vol. 14, 1862, p. 710. 



Lhiuparus (part) Oktmann, Amer. Journ. Sci., ser. 4, 1897, p. 296. 



Antennal flagella short. No spines on antennular ring. Two 

 frontal horns. A median dorsal and two lateral carinae on carapace 

 and abdomen. Cretaceous. 



PODOCRATUS CANADENSIS (V/hiteaves) 



Plate 35, fig. 2; plate 36 



Hoploparia ( ?) canadensis Whiteaves, Trans. Roy. S'oc. Canada, vol. 2, 

 1884 (1885), sec. 4, pp. 237-238; Contrib. to Canadian Palaeontology 

 (Geol. Survey of Canada), vol. 1, pt. 1, 1885, p. 87, pi. 11. 



Podocrates canadensis Whiteaves, Proc. and Trans. Roy. Soc. Canada, 

 ser. 2, vol. 1, 1895, p. 133. 



Linuparus (Podocrates) canadensis Woodward, Geol. Mag., n. s., dec. 4, 

 vol. 7, 1900, p. 396, pi. 16, fig. 1. 



Linuparus canadensis Whiteaves, Mesozoic fossils, vol. 1, pt. 5 ; Geol. Sur. 

 Canada, Ottawa, 1903, p. 325. 



Description. — In both this species and the next, the median keel is 

 absent in front of the cervical suture (pi. 36; pi. 37, figs. 1 and 2) ; 

 in P. canadensis it is stronger than the obtuse lateral keels and is 

 three times as broad posteriorly as anteriorly. The keels each have 

 a series of larger conical tubercles whose acute apices point forward. 



Just in front of the cervical groove are five tubercles in two con- 

 verging rows of two pairs and an odd one, which if connected by 

 lines would have much the shape of an isosceles triangle with its 



