MUSEUM OF COMPARATIVE ZOOLOGY. 



Station. 



Sex. 



Length of Carapax. 



Breadth of Carapax. 



333 



$ 



25.0 mm. 



38.7 mm. 



= 1.55 Igth 



327 





36.3 



56.0 



1.54 



a 





37.2 



59.0 



1.59 



tt 





37.2 



59.1 



1.59 



tt 





40.5 



64.8 



1.60 



u 





41.0 



64.8 



1.58 



u 





59.7 



94.0 



1.59 



IS 



9 



39.0 



61.5 



1.58 



It 



a 



39.1 



62.0 



1.56 



Cancer borealis Stimpson. 



Cancer irroratus Say, Jour. Acad. Nat. Sci. Philadelphia, I. p. 57, 1817 (? only, 

 c? being C. irroratus). 

 Gould, Invertebrata Massachusetts, 1st ed., p. 322, 1841 

 Stimpson, Invertebrata Grand Manan, p. 59, 1853 (teste Stimpson). 

 Platycarcinus irroratus DeK ay, Nat. Hist. New York, Crust., p. 6 (but not the 



fig.), 1844. 

 Cancer borealis Stimpsox, Ann. Lyceum Nat. Hist. New York, VII., p. 54(4), 1859. 

 Smith, Inverteb. Vineyard Sd., Report IT. S. Fish Com., I. pp. 546 (252), 745 

 (451), 1874 ; Trans. Conn. Acad., V. p. 39, PL VIII. 1879 ; Proc. National 

 Mus., Washington, III. p. 417, 1881. 

 Kingsley, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 317 (2). 



Station. 



N 



. Lat. 



W 



Long. 



Fathoms. 



Specimens. 



314 



32° 



24' 0" 



78° 



44' 0" 



142 



i*. 



39 



3 young. 



321 



32° 



43' 25" 



77° 



20' 30" 



233 



6<J, 



4?. 





327 



34° 



0' 30" 



76° 



10' 30" 



178 



3<?, 



1?, 



8 young. 



Fifteen of the 



specimens 



give the following 



measurements. 







Station. 





Sex. 



Length of Carapax. 



Breadth of Carapax. 



314 





/Young. 





15.2 mm. 





21.5 mm. =: 



: 1.41 lgth. 



it 





« 





16.7 





24.3 





1.45 



321 





9 





22.3 





33.2 





1.48 



n 





u 





25.3 





38.0 





1.50 



327 





« 





47.0 





73.0 





1.55 



314 





a 





49.3 





76.0 





1.54 



321 





$ 



v 



32.5 





49.0 





1.51 



it 





tt 





38.0 





59.5 





1.56 



314 





tt 





46.0 





72.0 





1.56 



. 327 





tt 





47.0 





74.5 





1.59 



321 





it 





47.6 





75.5 





1.59 



327 





tt 





63.0 





101.2 





1.60 



it 





it 





76.0 





120.0 





1.5S 



314 





tt 





78.0 





123.0 





1.58 



it 





it 





80.0 





129.0 





1.61 



