44 BULLETIN 138, UNITED STATES NATIONAL MUSEUM 



Occurrence. — Alaska: West end of Bering Lake; probably Oligo- 

 cene; six specimens, mostly impressions; Cat. No. 353326, U.S.N.jSI. 



Washington: Port Townsend; "late Tertiary"; Clallam forma- 

 tion, lower Oligocene series, according to B. L. Clark; one specimen, 

 holotype, in Yale Museum; plastotype in United States National 

 Museum. 



Washington: Conglomerate seacliffs at Koitlah Point, west of 

 Neah Bay ; lower (?) Oligocene series ; three males without ap- 

 pendages. 



Washington: In shale near station 214, Koitlah Point, I14 niiles 

 northwest of Neah Bay, Clallam County ; " Oligocene-Miocene," 

 one male and impression ; also a finger which may belong to the same 

 species. Cat. No. 353327, U.S.N.M. This crab was at one time 

 enclosed in a nodule; subsequently the nodule split in two exposing 

 the dorsal surface of the body and some of the legs which later 

 became thinly encrusted w^th mud which hardened; by erosion the 

 anterior part of the dorsal surface of the body was worn away 

 leaving the antennules, interantennular septum and bases of antennae 

 visible from above; the body has since been broken away from the 

 nodule exj^osing its ventral surface and an impression of the same. 



Washington : Xy^ miles east of Vader, Lewis County, in the bank 

 of the Cowlitz River, just below the big bend; Cowlitz formation^ 

 upper Eocene; one male, with the sternum and a small part of the 

 carapace exposed. 



Washington : Southwestern part, at the type-locality of the Cow- 

 litz formation, upper Eocene; one male, body only, in which the 

 outer shell of the dorsal surface of the carapace is well preserved 

 except in the anterior and antero-lateral portions. 



Genus EUCRATE de Haan 



Eucrate de Haan, Fauna Japon., Crust., 1835, p. 36 ; type, Eucratc crenata 

 tie Haan. 



Carapace deep, subquadrilateral, convex fore and aft; fronto- 

 orbital border nearly as broad as carapace; antero-lateral borders 

 toothed and slightly arched; front straight. Orbital hiatus closed 

 by a process from basal antennal joint. Chelipeds much more mas- 

 sive than legs. The third abdominal segment of male covers the 

 whole w^dth of the sternum. 



Oligocene ; Recent. Not before found fossil. 



EUCRATE MARTINI, new species 



Plate 8, figs. 2 and 3 



Description. — Front nearly straight, rounded at the corners (pi. 

 8, fig. 3). Outer angle and lower inner angle of orbit equall}^ 



