70 REPORT OF COMMISSIONERS OF INLAND FISHERIES. 



(Genus) OCYPODE Fabricius. 



Ocypode albicans Bosc. "Ghost Crab." 



Plate III. Figure 14. 

 O. areneria Say. Verrill and Smith, 1874. 



The carapace is almost quadrilateral. The eyestalks are stout. 

 The chelae in the male are somewhat unequal, but much less so than 

 in the fiddlers. The color is a dull yellow. It is a southern species, 

 and usually only the young are found so far north. 



Habitat: sandy beaches above the tides, in burrows. 



(Genus) UCA Leach. 



U c a differs from Ocypode in having slender eyestalks, and the 

 chela in the male extremely unequal. This genus contains the fid- 

 dler crabs Uca pugilator, Uca minax and Uca pug n ax. 



Uca pugilator Bosc. " Fiddler Crab." 



Plate IV. Figure 15. 

 Gelasimus pugilator Bosc. Verrill and Smith, 1874. 



In this species the carapace is nearly quadrilateral. The palm of 

 the large cheliped is smooth (see Plate IV, Fig. 16). 



Habitat: salt marshes near high-water mark, in burrows; also 

 muddy and sandy flats and brackish water. 



Distribution: Cape Cod to Gulf of Mexico. 



Economic value: food for fishes. 



Season in Rhode Island: 



When are the eggs laid, and how long after copulation? 



How long does the female carry the eggs? 



Extent of hatching season: 



Uca minax Le Conte. " Fiddler Crab." 



Plate IV. Figure 19. 

 Gelasimus minax Le Conte. Verrill and Smith, 1874. 



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