REPORT OF COMMISSIONERS OF INLAND FISHERIES. 65 



Season in Rhode Island: 



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



How long does female carry eggs? 



Extent of hatching season: 



(Genus) HEXAPANOPEUS Rathbun. 



Hexapanopeus angustifrons Benedict and Rathbun. "Mud Crab." 



Plate II. Figure 8. 

 Panopeus angustifrons Benedict and Rathbun. Benedict and Rathbun, 1891. 



The carapace is hexagonal and convex. The front is very narrow, 

 much produced and divided into four lobes; the middle lobes being 

 separated by a prominent V-shaped notch. The dactyl of the large 

 hand has a large basal tooth. 



Habitat, on oyster beds. 



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 female carry eggs? 



Extent of hatching season. 



(Family) PORTUNID^ Leach. 



This family, with the exception ofCarcinides, has the last pair 

 of legs modified for swimming, Carcinides has the last pair 

 of legs narrow, with the terminal segment lanceolate. The carapace 

 is widest at the anterolateral marginal spine. There are usually from 

 five to nine anterolateral spines. We have the four genera, C a 1 1 i - 

 nectes, Portunus, Ovalipes, Carcinides, with one 

 species each. 



