294 BULLETIN 120, UNITED STATES NATIONAL MUSEUM 



C, First movable article of antenna not reaching so far forward as tip of 

 rostrum. 

 D'. Palms armed with spines or tubercles above at proximal end. One 

 tooth on movable finger of male in the gape. Supraorbital margin 

 with two teeth between preocular and postocular teeth. 



parvifrons, p. 296. 



D-. Palms smooth, unarmed. Two teeth on movable finger in the gape. 



Supraorbital margin with only one tooth between preocular and 



postocular teeth edwardsii, p. 300. 



C-. First movable article of antenna overreaching rostrum tumida, p. 299. 



A2. Merus of ambulatory legs unarmed. 



B'. Lateral margin of carapace armed with four teeth or spines. Palm with a 



single spine pyriformis, p. 301. 



B^. Lateral margin armed with smaller, more numerous teeth or spines. Ros- 

 trum shorter. Palm unarmed pubescens, p. 302. 



Analogous species on opposite sides of the continent: depressd 

 (Atlantic) ; tumida (Pacific) . 



HERBSTIA CAMPTACANTHA (Stimpson) 



Plate 105, figs. 1 and 2; plate 240, figs. 9-13 



Herhstia parvifrons Stimpson (not Randall), Ann. Lye. Nat. Hist. N. Y., 

 vol. 7, 1860, p. 185. 



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

 1871, p. 94 (type-localities, Cape St. Lucas and Acapulco; cotype, male, 

 from Acapulco, Cat. No. 991, M. C. Z.). 



Fisheria depressa Lockington (fide Holmes), Proc. California Acad. Sci., 

 vol. 7, 1876 (1877), p. 72 [10] (type-localities. Port Escondido and San 

 Jose Island, both in Gulf of California; types destroyed in the San Fran- 

 cisco fire, 1906). 



Mithrax armatusf Lockington (not Saussure), Proc. California Acad. Sci., 

 vol. 7, 1876 (1877), p. 70 [8]. 



Herhstia camptacantha A. Milne Edwards, Crust. R^g. Mex., 1875, p. 78, 

 pi. 18, figs. 3-3e. 



Herhstia (Herhstiella) camptacantha Miers, Journ. Linn. Soc. London, vol. 

 14, 1879, p. 655; Challenger Rept., Zool., vol. 17, 1886, p. 49.— Holmes, 

 Occas. Papers California Acad. Sci., vol. 7, 1900, p. 37 (part). 



Diagnosis. — Palm unarmed. Three spines on outer margin of 

 basal antennal article, including that at anterior angle; first movable 

 article falling considerable short of tip of rostrum. 



Description. — Carapace slightly convex, surface regularly and con- 

 spicuously punctate; cervical suture deep and well marked, sulci 

 separating branchial from cardiac region very shallow, no sulcus be- 

 tween branchial and intestinal region, which is rather flattened. 

 Twenty small tubercles on carapace not including marginal spines: 

 Five tubercles on gastric region, of which four are in a transverse 

 line, the two on either side of middle approximated; three on cardiac 

 region, two on intestinal region, five on each branchial region. On 

 the margin, 14 spines on each side behind orbit, 5 antero-lateral, 

 9 postero-lateral; posterior spines very small, blunt or tuberculiform, 

 anterior ones larger. A similar spine and two smaller ones on sub- 



