INACHID^ 21 



Subtribe Brachygnatha. 



Superfamily Oxyrhyncha. 



Family PARTHENOPID^. 



Genus HETEROCRYPTA Stimpson. 



Heterocrypta Stimpson, Ann. Lye. Nat. Hist. N. Y., x, 102, 1871 {Ty^a—Hctcro- 

 crypta granulata (Gibbes)). 



Heterocrypta occidentalis (Dana). 

 Plate II, figs. 4-5. 



Cryptopodia occidentalis Dana, Am. Journ. Sci. (2), xviii, 430, 1854.— Rathbun, Am. 



Nat., xxxiv, 516, 1900. 

 Heterocrypta occidentalis Holmes, Occas. Papers Calif. Acad. Sci., vii, 44, 1900, and 



synonymy.— Rathbun, H. A. E., x, 170, 1904. 



Represented in the collection by a considerable number of specimens, 

 all dredged from moderate depths — ten to fifteen fathoms. 



The rostrum in the younger specimens is rather more acute than in the 

 adult and there is also considerable pubesence along the angles of the 

 chelipeds and especially in the branchial and frontal regions, sometimes 

 covering the greater part of the carapace, while the carapace of the adult 

 is commonly smooth. As shown in the figures, the middle of the posterior 

 margin of the carapace is more prominently rounded in the female than in 

 the male. 



Color in life : tips of tubercles white, ridges bearing tubercles light 

 purplish, remainder of carapace mottled with numerous minute spots of 

 white and purplish, giving a pink effect which often closely approaches 

 white. Ambulatory legs usually a light yellow. Color in alcohol not 

 markedly different. 



Family INACHID^. 



Specimens of all the species of Inachidae here treated, 11 in number, 

 have been available for examination, and considerable pains has been 



