588 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi. 



and narrow; meral joints with anterior margins spinulous; last two 

 joints with pubescent margins. 



Dimensions. — Male: Length, 8.1 mm.; width, 11.5 mm. 



Tj/pes.— No. 21583, U.S.N.M, Two males, eight females. Southern 

 X)art of Gulf of California, 8 fathoms, station 2824. 



Distribution. — Gulf of California, 7 to 10 fathoms, stations 2824 to 

 2828, inclusive. 



70. MICROPANOPE AREOLATA, new species. 



Carapace areolate; frontal lobes rounded; second and fifth lateral 

 teeth reduced ; color ofpollex running bach on palm. 



This species is closely allied to the preceding, and is associated with 

 it. It is distinguished by its carapace being slightly narrower, areo- 

 late, more distinctly granulate, and slightly pubescent, by the greater 

 roughness of the carpi of the chelipeds, and, above all, by the dark 

 color of the pollex extending well backward and upward on the palm. 



Dimensions. — Male: Length, 6.7 mm.; width, 8.0 mm. 



Types.— 1^0. 21584, U.S.N.M. Four males, one female. Head of Gulf 

 of California, 11 fathoms, station 3024. 



Distribution. — Gulf of California, 9.J to 11 fathoms, stations 2826, 

 2827, 2828, 3024. 



71. LOPHOPANOPEUS MACULATUS, new species. 

 (PlateXLII,fig8. 10, 11.) 



Carpus slightly rough; ambulatory legs slightly cristate ; meral joints 

 spinulous ; terminal segment of abdomen of male wider than the preceding 

 joint. 



Carapace hexagonal, moderately convex, deeply areolated. Surface 

 covered with very fine, depressed, scabrous granules. Front narrow, 

 advanced, thickened, emarginate, with a short, closed, median fis- 

 sure; margin sinuous, granulate, the outer angle being truncate and 

 obtuse. Lobe between the superior orbital fissures truncate, not pro- 

 duced. Exorbital tooth small; second tooth well marked, though not 

 prominent, rounded; third, fourth, and fifth teeth dentiform, subacute, 

 the fifth a little the smaller. Sinuses separating the second, third, 

 fourth, and fifth teeth continued by grooves on the carapace. The 

 inferior regions of the carapace are granulous and there is a suborbital 

 tubercle. The inner tooth of the inferior orbital margin is produced, 

 thickened, and obtuse; the outer fissure is large and V-shaped. Proxi- 

 mal angles of third abdominal segment of male acute and overlapping 

 the cox?e of the fifth pair of feet. Penultimate segment nearly as long 

 as wide, increasing in width distally. Last segment wider than the 

 preceding and arcuate. 



Chelipeds nearly equal, heavy. Merus trigonal, as broad as long, 

 superior margin denticulate. Carious slightly rugose, with an anterior 

 groove and two blunt inner teeth, one above the other. The palm of 



