inhabiting the New England Coast. 



253 



ably stouter, but very much less stout than in P. chmtopterana : the 

 merus is about three times as long as broad, the posterior surface is 

 somewliat rough and granular and there is a minutely tubercular and 

 granular carina on the lower edge, but there is no well marked 

 groove across the distal end ; there are two lines of granules along 

 the lower edge of the propodus but no real carina. The posterior 

 legs are very much like the third pair except that they are much 

 smaller, reaching only to the distal ends of the carpi of the third 

 pair. The dactyli of all the ambulatory legs are long, slender and 

 nearly straight. 



Measurements. 



Carapax . 



Length. 



2-8" 



2-7 



2-9 



3-3 



3-4 



3-7 



3-7 



4-3 



1-93 

 1-94 

 1-93 

 2-03 

 2-00 

 2-00 

 2-08 

 2-02 



Length. 



8-0" 

 7-6 

 7-2 

 8-2 

 8-7 

 9-1 

 9-0 

 10-1 



Third ambulatory leg: 



3-2 X 

 2-9 



2-7 

 3-2 

 3-3 

 3-8 

 3-6 

 4-0 



Propodus, 



7 X 0-6" 

 4 0-4 



0-5 

 0-6 

 0-7 

 0-7 

 0-8 

 1-0 



Dactylua. 



1-5 X 0-2'"°i 



1-4 

 1-3 

 1-4 

 1-5 

 1-6 

 1-6 

 1-7 



0-2 

 0-2 

 0-3 

 0-3 

 0-3 

 0-3 

 0-3 



Specitnens Examined. 



Locality. 



New Haven, L. I. Sd. 



Vineyard Sound 

 Buzzard's Bay 



Fath. 



dredged 



shore 

 dredged 



M. 



1869 



May 22, '72 



1871 



1875 



A. E. Verrill 

 A. D. Chidsey 

 A. E. Verrill 

 U. S. F. Com. 



Dry 



Ale. 



