140 BULLETIN 138, UNITED STATES NATIONAL MUSEUM 



1910. DicKERSON, Roy E. Stratigraphy and Fauna of the Tejou Eocene of 

 California. Univ. California Publ., Geol., vol. 9, No. 17, May 2. 



Figures tvro crabs, Conccr {?), species «, p. 427, pi. 42, fig. 11. [Fla- 



ffiolophus weaver i. ] 

 Cancer if), species &, p. 434, pi. 42, fig. 12. [Raninoides dickersoni.^ 



1916. Rathbun, Maky J. Description of a New Genus and Species of Fossil 



Crab from Port Townsend, Washington. Amer. Journ. Sci., vol. 41, 

 pp. 344-346. 



Branchioplax ivasMngtoniana. 



1917. Description of a new species of crab from the California 



Pliocene. Proc. U. S. Nat. Mus., vol. 53, pp. 451-452. 



Cancer urianus. 



1924. Withers, Thomas H. Some Decapod Crustaceans {CaUianas.-m and 



Ranina) from the Oligocene of Washington, U. S. A. Ann. Mag. Nat. 

 Hist., ser. 9, vol. 14, July, 1924, pp. 121-127, pi. 4. 



Two new species, Callianassa claUamensis and Ronina americana^ 

 described. 



1925. Oldroyd, T. S. The Fossils of the Lower San Pedro Fauna of the Nob 



Hill cut, San Pedro, California. Proc. U. S. Nat. Mus., vol. 65. Art. 

 22, 1924 (issued Jan. 16, 1925), pp. 1-39, pis. 1-2. 



On page 23 lists " Crab remains identified by Miss Mary J. Rathbun." 



EXPLANATION OP PLATES 



The photographs made for this report were taken by the United States 

 Geological Survey and retouched by Miss Frances Wieser. 



Plate 1 



Fig. 1. Pyromaia tuberculata, abdomen of female, Spanish Bight, X 4. The 

 attached end is uppermost in the figure. 



2. Chorilia, species, Deadman Island, right movable finger, outer view, 



X 4. 



3. Pinnixa eocenica, holotype, dorsal view of carapace, X 4. 



4. Same, rear view, X 4. 



5. Mesorhoca idae, paratype, Deadman Island, merus of right cheliped, 



inner surface, X 3. 



6. Same, upper surface, X 3. Distal end at the right in the figure. 



7. Same, outer surface, X 3. Distal end at the right in the figure. 



S. Mesorhoea idae, holotype, propodus of left cheliped, inner surface, X 3. 



9. Same, upper-outer surface, X 3. 



10. Same, lower-outer surface, X 3. 



11. RandaUia pleistocenica, paratype. Nob Hill, merus of left cheliped, 



upper view, X 4. 



12. RandaUia pleistocenica, holotyi)e, carpus and propodus of left cheliped, 



lower (or outer) view, X 4. 



13. RandaUia ornata, Signal Hill, right dactyl or movable finger, lower 



(or outer) view, X 4. 



14. RandaUia ornata, Spanish Bight, right immovable finger, lower (or 



outer) view, X 4. 

 15. Cycloxanthops novemdentatus, Rincon, right movable finger, X y^- 

 IG. Same, left immovable finger, X 1%. 



