THE CANCROID CRABS OF AMERICA 441 



forward than the upper; both edges granulate, the lower more finely 

 than the upper. Orbit with a pronounced inner tooth above and 

 outside the front, a small emargination near middle of upper border, 

 a larger triangular outer notch, and a blunt tooth at inner angle of 

 lower margin. Antero-lateral teeth five including orbital angle; a 

 concave sinus between first and second tooth; 

 first and last tooth smallest. Ventral surface 

 of carapace granulate; no subhepatic tubercle. 

 Basal antennal article short, but touching the 

 prolongation of the front. 



Merus of chelipeds finely granulate, upper 

 margin dentate; carpus squamoso-rugose, a 

 distal groove and a stout tooth at inner angle; 

 palms squamoso-tuberculate above and near 

 wrist, elsewhere smooth and punctate; major 

 palm robust, lower margin convex, fingers figure 70.— micropanope 

 gaping, a large tooth at base of dactylus; minor domen ^xw ^^^^^^' ^^' 

 palm much narrower, lower margin almost 

 straight, fingers meeting, teeth not prominent. Fingers black, tips 

 Ughter, crossing when flexed. Legs slender, punctate, spinulous 

 above, last three segments haiiy. 



In the male abdomen the slender distal angles of the sixth segment 

 are prolonged on either side of the terminal segment which is broader 

 than long. 



Measurements. — Male (20606), length of carapace 6.1, width of 

 same 9.4, fronto-orbital width 6.4, width of front 3.4 mm. 



Range. — From Magdalena Bay, Lower California, Mexico, to 

 Galapagos Islands; 20 to 66 fathoms. 



Material examined. — See table, page 437. 



MICROP.4NOPE LATA (Faxon), new combination 



Plate 180, Figures 5 and 6 



Panopeus latus Faxon, Bull. Mus. Comp. Zool., vol. 24, 1893, p. 153 (type- 

 locality. Bay of Panama, 85 fathoms; type in M.C.Z.); Mem. Mus. Comp. 

 Zool., vol. 18, 1895, p. 18, pi. 3, fig. 3, 3a. 



Diagnosis. — Carapace very broad and very convex antero-pos- 

 teriorly. No tooth at outer angles at front. Hands mostly smooth. 



Description (after Faxon). — Carapace broad, convex antero- 

 posteriorly, granulate, especially on the hepatic, branchial and cardiac 

 regions; areolations well marked and protuberant. Front with a 

 small median incision, lobes slightly convex, not produced into teeth 

 at lateral angles. Five antero-lateral teeth; postocidar tooth small, 

 separated from the second tooth by a shallow, granulate sinus, third 

 tooth broadest, rounded off at apex, fourth most salient, acute, 

 fifth very small, acute; all have crenate or spinulous margins. Orbital 



