THE GRAPSOID CRABS OF AMERICA. 



99 



Meriis of outer maxilliped very wide and angled ; propodns broadly 

 subtrianguiar, having a minute linear dactylus inserted on the proxi- 

 mal portion of its oblique distal margin. 



Cheliped (left only is present) stout, manus short, increasing 

 greatly in vridtli toward distal end where it is higher than superior 

 length; lower margin of propodus 

 straight except distal half of linger 

 curved upward, well overlapping 

 dactylus; edge of immovable finger 

 with a few teeth of which the one 

 at middle is largest; dactylus also 

 wide at base, and strongly arched. 



Legs narrow, length 2.1 and 3. 

 4 — that is, 2 longest, 1 and 3 next, 

 and of about equal length ; propodi 

 with both margins convex except 

 the hind margin of the second one 

 which is straight; dactyli slender, 

 curved, subequal, with spinelike 

 tips. 



Abdomen suboblong, terminal 

 segment transversely oblong and 

 longer than the sixth segment which has a shallow rightangled 

 indentation on either side. 



Color. — Dorsal surface of dried specimen a dark purple except 

 across front, on posterior margin and posterior half of cardiac region. 



Measurements. — Male holotype, length of carapace 3.G, width of 

 same 3.1 mm. 



Uange. — Ivnown only from the type-locality. 



Fig. 50. — I'ixnotiieres orcutti, exdo- 

 gnath of outer maxilliped of male 

 uolotype, x 07. 



PINNOTHERES HEMPHILLI. new species. 



Plate 23. 



Type-locality. — Cedar Keys, Florida; between tides; Henry Hemp- 

 hill; "seems rare"; 1 male (6420). 



Diagnosis. — IMale octagonal. Chelipeds stout. Second \Gg longest, 

 as also its propodus and dactylus; propodus concave on posterior 

 margin. Dactyli curved. Sternum sharply ridged. 



Description of male. — Small and almost bare. Carapace suboc- 

 tagonal, the posterior margin twice as long as anterior margin, mid- 

 lateral margins parallel to median line, as long as postlateral mar- 

 gins, antcro-lateral margins (to angles of front) longest. Carapace- 

 depressed, somewhat wrinkled. 



Outer maxillipeds in situ short and wide; partly overlapped by 

 sternum; the outer margin of ischium-merus broadly arcuate; palpus 



