THE FOSSIL STALK-EYED CRUSTACEA 135 



base near the furrow. In front of these five tubercles are four 

 others, still larger, forming a quadrangle whose sides are greater 

 than the base of the isosceles triangle indicated by the other five. 



Carapace between grooves covered with small, isolated, rather dis- 

 tant conical tubercles, occasionally surrounded by a minute annulus 

 at base. 



Occurrence. — Northwest Territory : Highwood River, a tributary 

 of Bow River, Alberta; Cretaceous (type-locality). British Colum- 

 bia : Vancouver Island, Cretaceous ( Whiteaves) ; Hornby Island, 

 Upper Cretaceous (Woodward). 



PODOCRATUS VANCOUVERENSIS (Whiteaves) 

 Plate 37 



Podocrates vancouverensis Whiteaves, Trans. Roy. Soc. Canada, ser. 2, 



vol. 1, 1895, sec. 4, p. 132. 

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



4, vol. 7, 1900, pp. 393-395, pi. 15, figs. 1-3. 

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



Sur. Canada, Ottawa, 1903, p. 323, pi. 40, figs. 1-3. 



Type-localities. — British Columbia: 2 miles up Puntledge River, 

 Vancouver Island (Mus. Geol. Surv. Canada, Ottawa), also Hornbj'' 

 Island; Cretaceous, Nanaimo group. 



Descri-ptio-n. — On the posterior portion of the carapace (pi. 37, 

 figs. 1 and 2) the three longitudinal ridges are minutely tuberculate 

 and extend from posterior margin to cervical groove Avhere eacii 

 terminates in a pointed tubercle larger than any of the rest. 



Just in front of the groove there is an ovate-lanceolate area, ele- 

 vated at pointed end anteriorly and margined with a single row of 

 small tubercles. Immediately in front of this area, a pointed or 

 spinous tubercle, almost in line with the largest tubercle on each 

 of the lateral ridges; still further forward are two similar tubercles 

 at a short distance from the outer margin. 



Carapace between grooves minutely granulate and setose. 



Order STOMATOPODA Latreille 



Family CHLORIDELLIDAE Rathbun (SQUILLIDAE Miers) 



MANTIS SHRIMPS 



Exopodite of uropod composed of two quite distinct segments. 



Genus CHLORIDELLA Miers (SQUILLA Fabricius) 



Chloridella Mieks, Ann. Mag. Nat. HLst., ser. 5, vol. ;j, 1880, p. 13 ; tyiie, C. 

 inicrophthalma (Milne Edwards). 



Carapace with well-marked carinae. Cervical groove defined 

 across dorsum of carapace. Cornea of eyes bilobed. First five 



