THE CANCROID CRABS OF AMERICA 431 



Measurements. — Male (58014), length of carapace 4.4, width of 

 same 6.3, fronto-orbital width 4.7, width of front 2.6 mm. Width 

 of ovigerous female, Barbados, 61 mm. (Bouvier). 



Range. — Florida; West Indies; Panama. 20-170 fathoms. 



Material examined. — See table, page 432. 



MICROPANOPE PUSILLA A. Milne Edwards 



Plate 179, Figures 7 and 8 



Micropanope pusilla A. Milne Edwards, Crust. Reg. Mex., 1880, p. 327, pi. 54, 

 figs. 4-46 (type-localitj^, near the west coast of Florida, 17 fathoms; type 

 in M. C. Z.y, Bull. Mus. Comp. Zool., vol. 8, 1880, p. 14 (Florida Strait, 36 

 fathoms) . 



Glyptoplax pusilla Rathbun, Journ. Inst. Jamaica, vol. 2, 1899, p. 628; Bull. 

 u'. S. Fish Comm. for 1900, vol. 20, pt. 2, 1901, p. 33.— A. Milne Edwards 

 and Bouvier, Mem. Mus. Comp. Zool., vol. 47, 1923, p. 328. 



Diagnosis. — Chelipeds and carapace nearly smooth to naked eye. 

 Legs unarmed. Four lateral teeth distinguishable. No subhepatic 

 tubercle. 



Description. — Carapace narrow, covered on the prominent parts 

 with numerous fine, regular granulations. Lobules indicated by 

 deeper furrows, and lobules of branchial and cardiac regions more 

 apparent, than in sculptipes. Behind the outer angle of the orbit 

 there are two triangular and shghtly projecting teeth and a small 

 tubercle which replaces the last tooth; the second normal tooth is 

 merged with the first. Front wide, appearing almost straight as seen 

 from above but really bent down, in the old almost vertically, the 

 two lobes deep toward the median sinus but becoming shallow toward 

 the orbits; surface of front more coarsely granulate than rest of 

 carapace. 



CheUpeds finely granulate; carpus uneven, distal furrow deep; 

 chelae unhke, not very unequal; both palms high, upper surface 

 broad, its outer border slight, inner border cristate, but not lobate, 

 at proximal end. Fingers meeting, tips crossing, those of major 

 chela irregularly dentate throughout, dactyl with large basal tooth; 

 fingers of minor chela longer and narrower, more deflexed, very 

 finely denticulate especially the dactylus, which is of rather even 

 width down to its middle, whence it diminishes to the tip. A finely 

 granulate ridge just above lower margin of each propodal finger is 

 continued a ways on palm; a similar ridge on upper margin of dactyls. 

 Fingers usually light brown in alcohol, sometimes nearly white. 

 Ambulatory legs slender and smooth. 



Abdomen of male short and wide ; third segment at its base covering 

 the sternum; sixth segment nearly twice as wide as long, seventh 

 segment equally short, margin broadly arcuate. 



Measurements. — Male (19802), length of carapace 4.2, width of 

 same 5.6, fronto-orbital width 4.4, width of front 2.4 mm. 



