THE CANCROID CRABS OF AMERICA 353 



A large subdistal tooth on merus of cheliped. Tooth on carpus 

 subcyhndrical, very blunt; below it a small, somewhat dentiform 

 prominence. Upper surface of manus rounded; color of immovable 

 finger not continued on palm. 



Measurements. — Male holotype, length of carapace 24.6, width of 

 same 35.9, fronto-orbital width 19 mm. 



Range. — Chile. 



Material examined. — Chile; 1 male holotype (Paris Mus.). 



Remarks. — Very close to P. occidentalis . 



PANOPEUS RUGOSUS A. Milne Edwards 



Plates 162 and 163 



Panopeus rugosus A. Milne Edwards, Crust. Rdg. Mex., 1880, p. 314, pi. 57, 

 fig. 4 (type-locality, Bahia; type in Paris Mus.). — Benedict and Rathbun, 

 Proc. U. S. Nat. Mus. vol. 14, 1891, p. 383. 



Diagnosis. — Coarsely and densely granulate and hairy. Median 



V of front large. Second lateral tooth much larger than first; last 

 three teeth sharp-pointed. Wrist very rough with irregular tubercles. 

 Palm with a groove above and three longitudinal raised lines on 

 outer surface. Fingers deeply grooved. Propodus and dactylus of 

 legs long and narrow. Sixth abdominal segment in male broader 

 than long. 



Description. — Carapace very broad and more distinctly granulated 

 than other species, the anterior and 'ateral regions being covered with 

 coarse granules plainly visible to the naked eye; their margins are 

 bordered with a band of granules, the ridge on the third, fourth, and 

 fifth lateral teeth is coarsely granulate. An obliquely transverse 

 epibranchial ridge composed of a single line of granules, a similar 

 transverse protogastric ridge, a transverse ridge either side at widest 

 part of mesogastric region and numerous shorter granulate lines, 

 especially on the hepatic, gastric, and frontal regions, whi e on the 

 branchial region where the level portion bends downward toward the 

 lateral margin there is a series of short granulate lines behind one 

 another; in old specimens, 50 or 60 mm. wide, the two hinder of 

 these rows become thick and high, forming elongate tubercles. In the 

 smooth spaces the carapace is punctate. The entire animal is more 

 hairy than other species; the surface is covered with a short pile 

 (easily rubbed off) formed of short vesicular hairs in the punctae 

 with some longer hairs interspersed. Front narrow, divided by a large 



V instead of the shallow emargination and closed fissure of allied 

 species; each half is bilobed, the lobes subequal, the inner lobe more 

 advanced than the outer. Inner margin of orbit elevated, its tooth 

 prominent; space between superior orbital fissures arcuate; outer 

 tooth small, inconspicuous, its outer margin long and nearly straight. 

 Next or second antero-lateral tooth broad, flat, rounded at tip, outer 



79856—30 24 



