422 BULLETIN OF THE BUREAU OF FISHERIES. 



Color, clear orange red above and on the sides, yellowish behind ; tips of the walking legs bright- 

 yellow; chelipeds slightly purplish. 



This species had been reported from a depth of 63 fathoms off Cape Lookout and has been taken by 

 the Fish Hawk (station 8249) in 47 fathoms at a point about 23 miles off Cape Lookout. In the deeper 

 water of the Gulf Stream it appears to be more abundant, several specimens, one of them a male 32 mm. 

 wide and 28 mm., long, were brought up from depth of from 100 to 200 fathoms. 



Calappa sulcata Rathbun. PI. xxxi, fig. 6. 



Calappa stUcata Rathbun, 1898, p. 289; ibid, 1901, p. 85. 



Carapace about seven-eights as long as wide, finely granulate and with about 7 rows of tubercles; 

 anterolateral border with about 14 crenulations, granulate on edge; posterior margin between wings 

 with 2 prominent, acute spines; wings not strongly developed, having 6 marginal teeth,2 behind and 

 3 in front of the posterolateral tooth, which is long and spiniform. 



Expansion of meros of cheliped four lobed ; superior crest of hand six to seven dentate ; outer sur- 

 face of hand with an irregular, oblique, almost smooth sulcus bordered by tubercles, and an acuminate 

 inferior proximal spine. 



Dimensions of a female: Length, 21 mm.; width at sinus just in front of wings, 23 mm.; width at 

 posterior lateral spines, 23.8 mm. 



Color, in alcohol, light pinkish brown with a number of small, narrow rings of dark red— 3 on the 

 carapace and the others on the chelipeds. 



This box crab has been dredged at a depth of 2 7 fathoms off Cape Lookout, as reported in Dr. Mary 

 J. Rathbun 's description of which this is a condensation. 



Genus HEPAT0S Latreille. 



Hepaius Latreille, 1802. t. m, p. 22. 



Hepatus epheliticus (Linnaeus). Calico crab, Dolly Varden crab. PI. xxxn, fig. i. 



Cancer epheliticus LinnsEus, 1749-69, vol. VI, p. 414; Rathbun, 1897. p. 37. 



Cancer decorus Herbst, 1796, vol. n, p. 154. 



Hepatus decorus Gibbes, 1850, vol. ra, p. 183; Coues, 1871, p. 124: Kingsley, r83oa. p. 324. 



Carapace about two-thirds as long as wide, convex above, regularly arcuate in front, and strongly 

 narrowed behind; front narrow, straight, prominent and placed much higher than the continuation of 

 the anterolateral borders of the carapace ; anterolateral borders dentate ; superior siuf ace of carapace with 

 several transverse lines or groups of tubercles. Chelipeds moderately strong, carpus and manus with 

 lines of coarse tubercles on their outer face and a crest which, on the manus, is four toothed on the superior 

 margin. 



Color, dark gray or brownish with numerous, rather large, round or irregular spots of light red with 

 darker borders scattered over the carapace. 



This crab is not uncommon in depths of a few fathoms in the channels of the harbor though the indi- 

 viduals so secured are not asnumerous nor as large as those taken outside. In a series represenriug vari- 

 ous ages a great deal of variation is to be seen, the granulations being relatively much coarser in the 

 young and the spots more numerous and brightly colored. 



Genus OSACHILA Stimpson. 

 Osachila Stimpson, 1871&, p. 154. 



KEY TO THE SPEQES OF THE BEAUFORT REGION. 



a. Abdomen eroded along the margins and on last two segments semilevis. 



aa. Abdomen deeply eroded all over tt< ierosa. 



Osachila semilevis Rathbun. PI. xxxi, fig. 9. 



Osachila semilevis Rathbun, 1916, p. 652. 



Carapace octagonal, with six large protuberances, one mesogastric, one metagastric (paired), one 

 cardiac, one mesobranchial (paired) all of which are rough as if finely eroded, while the depressions 

 are nearly smooth; anterolateral margins continued toward buccal cavity and finely dentate; postero- 

 lateral margins thick and with four lobes, the first of which does not project as far as the adjacent antero- 



