THE BLUE CRAB PIERS. 



87 





Sex 



Age 



Locality 



Date 



Carapace 



Accession 

 Number 



X 

 H 



z 



Ul 



5 2 



o 



Old specimen 

 1073 

 1073 

 1077 

 I078t 

 1098 

 1099 

 1125 

 1126 

 181 1 



Female 

 Male 

 Female 

 Male 



Female 



Male 



?' 

 Male 

 Female 



Adult 

 Immature 



Nova Scotia (?). 



Cow Bay. Hfx. Co.. N. S. 



Cole Har'. (?), Hx. Co.. N. S. 

 Cow Bay. Hfx. Co. 



Cow Bay Lily Pond, Cow Bay 



Not known. 

 7 Nov. 1902 



14 .'.' ■„' 

 25 ., .. 

 27 .. .. 

 1 1 Dec. .. 



24 Ap. 1903 



Ins. 

 2.25 

 2.55 

 2.35 

 2.75 

 2.50 

 2.36 

 1.96 

 2.18 

 2.52 

 2.46 

 2.46 

 2.64 

 2.46 

 2.31 

 2.28 



Ins 

 4.65 

 5.26 

 5.09 

 6.03 

 5.36 



Immature 

 Adult 



5.14 

 4.30 

 4.82 

 5.90 

 5.30 







5.12 







5.70 



(Right 



cheliped) 



1815 





5.26 

 4.74 

 4.73 





1 May .. 

 8 ., .. 



2.73 

 1.98 

 2.00 



6.00 



1820 





4 20 





Immature 



4.35 



All specimens were obtained from one person, except the "old specimen" and No. 1098. 



t Alive when received. 



12 males: average length, 2.457 ins; average width, 5.237 ins. 



6 females: average length, 2.210 ins.: average width, 4.852 ins. 



2 adult females: average length, 2.39 ins.; average width, 5. 28 ins. 



Males vary in size from the smallest (No. 1820), 1.98 ins. in length, 4.20 ins. width, to the 

 largest (No. 1077), 2.75 ins. length, 6.03 ins. width. 



Females vary in size from the smallest (No. 1099), 1. 96 ins. length, 4.30 ins. width, to the 

 largest (No. I 126), 2.52 ins. length, 5.90 ins width. 



Largest immature female is No. 1073, 2.35 ins. length. 5.09 ins. width. 



All of these specimens agree fully with descriptions and figures 

 of Callinecles sapidus. The following notes on the colour were 

 made from Ace. No. 1078 (male), which was alive when received, 

 and No. 1077 (male) which was quite fresh, and represent fairly- 

 well the colouration as found here, which agrees generally with 

 that of more southern specimens: 



Colour. — Carapace greenish-olive, passing into olive-green on posterior 

 margin. Tips of teeth on anterior margin of carapace and of lateral spines, 

 reddish. Underparts generally white. Legs (periopods) pale olive-green and 

 blue; their callosites and spines red. Upper part of chelae ("pincer-claws") 

 dirty olive-green; inner side of same, a fine cobalt blue. 



In Chesapeake Bay, U. S. A., 36 adult females had an average 

 width of 6. 1 1 7 inches, and they are known to attain a width of 

 7 inches; and the average width of adult males is there probably 

 about 6.5 inches at least, while they are known to grow to a width 

 of 8.5 inches.* As our two adult females (with rounded abdomens) 



* Churchill, E. P., Life History of the Blue Crab, Bull. Bur. of Fisheries, vol. 36, 1917-18. 

 P.IOI. Wash., 1919. 



