REPORT ON" THE BRACHYURA. 



75 



and broad, triangulate, armed with rather sharp tubercles, 

 larger on the margins. Tubercles of the carpus forming ir- 

 regular masses and ridges; two inner spines of which the 

 inferior posterior is the smaller. Manus with a superior 

 groove and double crest: tubercles of the outer face dimin- 

 ishing in size towards the lower margin; those of the inner 

 face very large near the upper margin, diminishing toward 

 the lower and distal margins. Larger hand stout, palmar 

 portion convex above and below; smaller hand with margins 

 subparallel. Fingers brown, deeply grooved, finelv granu- 

 late, not gaping when closed; dactylus of larger hand with 

 larger basal tooth. Ambulatory legs very slender, granulate: 

 meri armed with small spines anteriorly; carpal and propodal 

 joints with spinules. 



Dimcnsio)is. — Length 7. width 10.4. exorbital width 6.5. 

 width of front 3.5 mm. 



Type locality. — -Off Havana. Cuba. lat. 2~y 11' 45' X.. 

 long. 82 ' 18' 54" W., 194 fathoms, station 2326. one female 

 (U. S. Nat. Mus. Xo. 9497 1. 



Additional localities. — Off Havana, lat. iy 10' 40 X'., long. 

 82 °2o' 15' W., 182 fathoms, station 2349. one small male. 

 Off Arrowsmith Bank. Yucatan, lat. 20 : 59' 30' X.. long. 

 86 : 23' 45 " W., 130 fathoms, station 2354. one female-. 



83. Micropanope lobifroxs A. Milne Edwards. 

 Off Havana, one female. 



Genus Tetraxanthus now 



Carapace quadrate, very convex, not areolate: orbit as wide 

 as half the front: lateral teeth four including the orbital angle: 

 teeth little projecting; first and second small, separated bv a 

 shallow sinus; third and fourth somewhat dentiform, obtuse: 

 palate with a ridge. Chelipeds with merus extending con- 

 siderably beyond the carapace; propodus very concave on 

 lower margin; ambulatory legs long and slender. Type, T. 

 bidoitatus {A. Milne Edwards as Xanthodes). 



S4. Tetraxanthus bidentatus (A. Milne Edz.-ards 1. 

 Station 42, off Sand Key, 15 fathoms. 

 iv— 3 Z 2 



