DECAPOD CRUSTACEANS OP THE BEAUFORT, N. C, REGION. 453 



cc. Inner crest of basal article of antenna advanced to the line of the front, or nearly so; rostrum 



bifid Euprognathus. 



aa. Basal article of antenna not slender, often very broad; eyes with orbits or capable of concealment. 

 6. Eyes without true orbits. 

 c. Eyestalks short, sunk in the sides of a huge rostrum formed of two contiguous horns 



Sphenocarcintis. 



cc. Eyestalks not short, concealed beneath long, curved supraocular horns; rostrum consisting of 



two curved, divergent horns Tyche. 



66. Eyes with true orbits. 

 c. Orbits with a large, blunt, cupped postocular process into which the eye is retractile, but is not 

 entirely concealed. 



d. Carapace covered with short hairs, rostrum double Pelia. 



dd. Carapace nearly or quite naked, rostrum single Pyromaia. 



cc. Orbits complete, wholly concealing the retracted eyes. 

 d. Fingers spoon-shaped at tips. 



e. Carapace suboblong or suboval; legs not spiny Pitho. 



ee. Carapace subtriangular ; legs spinous Mithrax. 



dd. Fingers acute at tips. 



e. Orbits tubular, directed outward ; carapace subtriangular or oblong. 



/. Carapace with lateral spines Stenocionops. 



ff. Carapace without lateral spines Macrocmloma. 



ee. Orbits not tubular, directed obliquely forward. 



/. Carapace orbicular Libinia. 



ff. Carapace subpyriform , somewhat depressed Microphrys. 



Genus PODOCHELA Stimpson. 



Podochcla Stimpson, i860, p. 194. 



KEY TO THE SPECIES OF THE BEAUFORT REGION. 



a. Rostrum broad, rounded in front riisei. 



aa. Rostrum drawn out into a slender point gracilipes. 



Podochela riisei Stimpson. PI. xxxvn, fig. 9. 



Podochela riisei Stimpson, i860: p. 196; Rathbun, 1901, p. 54: Verrill, 1908, p. 398. 

 Podochcla reisei A. Milne-Edwards, 1880, p. 193. 

 Coryrhynchus riisei Kingsley, 18S0, p. 384, 



Cephalothorax pyriform, depressed, the greatest width near the posterior margin about two-thirds 

 the length; rostrum broad, rounded in front, deeply excavated below for the antermules, carinate above 

 and with a tuft of curled hairs; orbits rounded, their margins thickened and with a row of hairs; dorsal 

 region uneven and with tufts of hairs. Stemtun of male thrown into ridges which radiate to the bases 

 of the legs. 



Eyestalks short and stout, the cornea oblique; basal segment of antenna with a high crest on each 

 margin; chelipeds slender in both sexes, the fingers in contact throughout their length; first pair of am- 

 bulatory legs considerably stouter than the others, about three times as long as the carapace; upper 

 surface of all the legs with regularly spaced tufts of stiff, curled hairs. 



Length of a male, 15 mm.; width, 10 mm. 



Several specimens of this homely crab are reported to have been taken among hydroids at Beaufort. 

 It may have occurred in former years but there is no recent record of it having been collected anywhere 

 within the harbor. During the seasons of 1913 and 1914 a few specimens came in from the Fish Hawk 

 dredgings. Two of these, from stations D7943 and D8204, have the chela like that described for P. 

 macrodcra, stout, the propodus dilated, and the fingers gaping at the base; otherwise they agree with 

 the present species. 



