300 BULLETIN 129^ UNITED STATES NATIONAL MUSEUM 



orbit there is a strong tooth ; on the outer margin of the basal antennal 

 article two small denticles. 



Compared to //. depressa, the carapace is narrower, also the ischium 

 of the maxillipeds; antennae longer and fringed with longer hair. 



Measurements. — Female, Gulf of California, length of carapace to 

 tip of horn 13.5, width 10.7 mm. 



Range. — Gulf of California and Manzanillo, Mexico. 



Material examined. — Gulf of California; 1 female (Amer. Mus. Nat. 

 Hist.). 



HERBSTIA EDWARDSn BeU 



Plate 105, figs. 3 and 4; plate 240, figs. 1-4 



Herbstia edwardsii Bell, Proc. Zool. Soc. London, vol. 3, 1835 (1836), p. 170; 

 Trans. Zool. Soc. London, vol. 2, 1836, p. 46, pi. 9, figs. 3, Sg-3i (type- 

 locality, Galapagos Islands, 6 fathoms; coral sand; type not extant). 



Herbstiella edwardsii Stimpson, Ann. Lye. Nat. Hist. N. Y., vol. 10, 1871, 

 p. 93. 



Diagnosis. — Two teeth in the gape of movable finger of male. 

 Supraorbital margin with only one tooth between preocular and 

 postocular teeth. Palms smooth, unarmed. 



Description. — Carapace depressed, much rounded, postfrontal 

 portion nearly circular but rather narrowed forwards; minutely 

 punctate. Four small tubercles transversely placed on gastric 

 region, several similar ones elsewhere especially on branchial regions 

 and lateral margin. Front moderately prominent, rostrum very 

 small, horns pointed and a little flattened. Orbits large, furnished 

 with a tooth at upper, inner angle, another at outer angle, and a 

 third, small and rounded, beneath; between which and the basal 

 article of the antenna there is a considerable hiatus. Basal article 

 rather broad, with a large tooth at the antero-external angle and a 

 smaller one behind it on the margin; next two articles cylindrical, 

 the last extending a little beyond the rostrum. 



Chelipeds of male more than twice as long as the postfrontal 

 portion of carapace, rather robust, and nearly cylindrical; hand 

 rather larger than the other segments, smooth; dactylus with two 

 teeth (in Bell's figure) in the gape, immovable finger with a strong 

 tooth between the two above. Legs sparsely hairy, merus with a 

 row of small spines above. (Bell.) 



Notes on a female from James Island. — The tubercles of the dorsal 

 surface of the carapace are much more obscure than represented by 

 Bell; there are 7 tubercles on the intestinal region arranged in 2 

 transverse rows, 4 in the anterior row and 3 in the posterior. Of the 

 marginal spinules that on the hepatic region is largest and sharpest. 

 On the upper margin of the orbit a small blunt tooth between the 

 preocular and postocular teeth. The tooth on outer margin of basal 



