THE SPIDER CRABS OF AMERICA 441 



TELEOPHRYS CRISTULIPES Stimpson 



Plate 159, figs. 1, 2 and 7; plate 262, fig. 7 



Teleophrys cristulipes Stimpson, Ann. Lye. Nat. Hist. N. Y., vol. 7, 1860, 

 p. 190 [62], pi. 2, fig. 2 (type-locality, Cape St. Lucas; cotype, Cat. No. 

 1226, M. C. Z.; the specimen mentioned by Pocock is probably also a 

 cotype). — A. Milne Edwards, Crust. Reg. Mex., 1875, p. 113, pi. 19, figs. 

 2-2e {Miihrax, subgenus Mithraculus, section Teleophrys). — Rathbun, 

 Proc. U. S. Nat. Mus., vol. 38, 1910, p. 536, pi. 46, fig. 2 (after Stimpson); 

 part: Cape St. Lucas specimen only. 



fMithrax cristulipes Miers, Challenger Rept., Zool., vol. 17, 1886, p. 87. 



Mithrax cristulipes Rathbun, Proc. U. S. Nat. Mus., vol. 15, 1892, p. 273 

 (part: Pacific coast specimens only). 



Diagnosis. — Front (in advance of fronto-orbital sinus) twice as 

 broad as long. Three (exceptionally four) antero-lateral, branchial, 

 marginal spines. Only one lobe on the propodus of ambulatory legs, 

 exclusive of those on the articulating margin. Third (or second free) 

 article of antenna long and slender. 



Description. — Carapace a little broader than long, triangular in 

 front, laterally and posteriorly rounded. Surface sparingly granulate 

 and tuberculate. Gastric and cardiac regions moderately protuber- 

 ant, the former crossed at the middle by a row of four small tubercles, 

 the outer pair a little in advance of the inner pair. Branchial region, 

 deeply separated from the hepatic and armed with three subequal, 

 curved, acute spines on its antero-lateral margin; occasionally a 

 smaller, additional spine is inserted; a marginal hepatic spine; a small 

 spine on postero-lateral margin; above it a large, posteriorly-flat- 

 tened, blunt tubercle; a small tubercle toward the inner angle of the 

 region. 



Rostral horns very small, triangular, blunt; interspace triangular. 

 Preorbital angle elevated and with a dimple near the tip; upper margin 

 of orbit with a small V-shaped emargination continued backward by a 

 furrow. Antennae two-thirds as long as carapace, basal article with a 

 small tooth on its outer margin besides the large one at the antero- 

 external angle; on the carapace just outside the base of this article 

 there is a tubercle. The second movable article is long and slender, 

 fully three times as long as its greatest or distal width. 



Inner distal margin of merus of maxilliped oblique. Feet rather 

 broad, naked above, and covered with lamelliform spines or shorty 

 leafiike crests, often somewhat imbricated. Chelipeds witli the crests 

 on merus and carpus less developed than on the ambulatories; a 

 prominent, bilobed crest on inner margin of merus and of carpus; two 

 long undivided crests on outer surface of carpus; hands very high, 

 compressed, cristate above, less so below, smooth except for a conical 

 tubercle at proximal end, considerably below the middle; surface 

 covered with brownish spots, in alcohol. Fingers of adult male 

 widely gaping, narrow, subcylindrical, tips excavate, crenulate; a 



