REPORT OF COMMISSIONERS OF INLAND FISHERIES. 71 



This is the largest of the fiddler crabs, and is less common than the 

 other two. It differs from U. pugilator in having an oblique 

 ridge (Plate IV, figure 8) on the palm of the large claw and from 

 U. pugnaxin having red spots at the joints of the legs. 



Habitat: salt marshes; frequently where the water is most of the 

 time fresh. 



Distribution: Cape Cod to the 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 pugnax Smith. " Fiddler Crab.' ^ 



Plate IV. Figure 17. 

 Gelasimus pugnax Smith. Verrill and Smith, 1874. 



U . pugnax differs from U . pugilator in having an oblique 

 ridge on the palm of the large claw, and from U . m i n a x in lacking 

 the red spots at the joints. 



Habitat: burrows in salt marshes; also on muddy or sandy flats, 

 and beaches, and the muddy banks of estuaries. 



Distribution: Cape Cod to the 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: 



(Family) GRAPSIDiE. Milne Edwards. 



This family differs from c y p o cl e in the following manner: the 

 third maxillipeds have the fifth joint articulated at the apex or front 

 outer angle of the fourth; the front is usually broad; the eyestalks 

 are of moderate size. The chelipeds of the male are nearly equal. 



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