DECAPODS 



179 



Genus Telmessus White. 

 TELMESSUS CHEIRAGONUS (Tilesius). 



Cancer cheiragomis Tilesius, Mem. Acad. Imper. Sci. St. Petersboure, v, ^47 

 pl.vii, fig. I, 1815. "^ ^' '^^7' 



Telmessus cheiragomis Benedict, Proc. U. S. Nat. Mus., xv, 224, pis. xxv 

 and XXVI, figs. 2, 3, and 4, 1892. 



TelemessKs cheiragomis HoLMES, Occas. Papers Calif. Acad. Sci., Vli, 69, 1900, 

 and synonymy. 



Harriman Expedition.— Vo^oti Island, Shumagins; Fox Island, Prince 

 William Sound (Kincaid). 



Z)/>/n^/^//^;/.— Northeastern Siberia; Kamchatka; Kurile Islands; 

 Bering Sea to California (Holmes). Low water to 20 fathoms. 



Note on specimens from the type locality.— ^mce the publication of Dr. 

 Benedict's ' Corystoid Crabs of the Genera Telmessus and Erimacrus,' 

 Dr. Leonhard Stejneger has collected specimens of Telmessus at Avacha 

 Bay, Kamchatka, the type locality of Cajicer cheiragomis Tilesius. These 

 specimens are identical with T. cheiragonus, as figured by Benedict; 

 otherwise the exaggerated lateral spines and the aculeate front of Tile- 

 sius's figure would lead one to suppose that his was a different species. 



Genus Erimacrus Benedict. 

 ERIMACRUS ISENBECKII (Brandt). 



Platycorystes (Podacanthus) isenbeckii Brandt, Bull. Phys.-Math. Acad. 



Imper. Sci. St. Petersbourg, vii, 180, 1848; Middendorff's Sibirische 



Reise, Bd. 11, Theil i, p. 83, 185 1. 

 Cheiragonus isenbeckii Brandt, Middendorfi's Sibirische Reise, Bd. ll, Theil 



I, p. 147, 1851. 

 Platycorystes isenbeckii RiCHTERS, Abh. Senck. Natur. GeselL, Frankfurt, 



XIII, Heft 4, p. 402, plate, figs, i and 2, 1884. 

 Erimacrus isenbeckii Benedict, Proc. U. S. Nat. Mus., XV, 229, pi. xxvi, 



figs. 5, 6, and 7, pi. xxvii, 1892. 



Distribution.— V>txv!\g Sea, Aleutian Islands, and Alaska Peninsula. 

 Shallow water to 85 fathoms. 



Family PORTUNID^. 



Genus Portunus Fabricius. 



PORTUNUS XANTUSII Stimpson. 



Distribution.— Yxom Puget Sound to Chile (A. Milne Edwards). Ex- 

 cept for a single specimen taken by the Albatross in Puget Sound, 

 this species is not known north of San Pedro, California. 



