REPORT OF COMMISSIONERS OF INLAND FISHERIES. 61 



The carapace, which is rounded, has nine dentate teeth along the 

 anterolateral margin on each side. The carapace is quite rough. 



Habitat: rocky shores from low-water mark to deep water. 



Distribution: Atlantic coast as far south as North Carolina. It is 

 most abundant in the northern part of this region. 



Economic value: edible. 



Season in Rhode Island: 



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



How long does female carry the eggs? 



Extent of hatching season: 



Cancer irroratus Say. ''Rock Crab." 



Plate I. Figure 2. 

 Cancer irroratus Say. Verrill and Smith, 1874. 



This species differs from C . b o r e a 1 i s in being slightly smaller, 

 in having a smoother carapace, and in having the teeth along the 

 anterolateral margin granulate. In color it is a dull red sprinkled 

 with dark brown spots. 



Habitat: under large rocks near low water mark; also occasionally 

 on sandy bottoms. 



Distribution: Atlantic coast to Florida. 



Economic value: edible. 



Season in Rhode Island: 



When are eggs laid, and how long after copulation? 



How long does female carry the eggs? 



Extent of hatching season: 



LARVAL FORMS. 



Two zoea stages, the megalops, and a young crab stage of Cancer 

 irroratus are briefly described by Smith, Verril & Smith, 1. c. p. 530. 



(Family) PILUMNIDAE (Leach). 



This family answers to the general description for C a n c r i d ae , 

 but differs in that the antennae are folded transversely and the outer 



