234 



THE ZOOLOGIST. 



February being really oversea migrants. He sees this movement on 

 the coast (at Lowestoft) every year, and is of opinion that they are 

 only birds which have essayed the easterly passage, and after putting 

 out to sea have turned back again, either because of haze at sea, or 

 because the wind was too strong for them. Page 140, line 7, add: An 

 adult Wood- Sandpiper in summer plumage was received by Mr. H. 

 Pashley on September 1st. — J. H. Gurney (Keswick Hall, Norwich). 



CRUSTACEA. 



Notes on the Edible Crab (Cancer pagurus). — I was much 

 interested in looking over some back numbers of the ' Zoologist ' to 

 read some remarks by Mr. Arthur H. Patterson on the size and 

 weight of the Edible Crab (' Zoologist,' 1913, p. 77). In the Baily 

 Museum at Mansfield there is a specimen from Mount's Bay, Corn- 

 wall — in fact, it was taken at Mousehole — which weighed 9 lb. 6 oz. ; 

 the girth of the hand is 9^- in. I have one in my own collection from 



Abnormal Hands of Crabs. 

 Double chela. 



Left inside. 



Left inside. 



Left outside. 



the same place that weighed 10 lb. 7 oz. ; length of carapace 7J in., 

 breadth of carapace 10J in., length of front leg to point 17| in., girth 

 of wrist 9J in., length of chela 5f in. Some years ago I sent home 

 from Mousehole a living Edible Crab to be used for the table that 

 weighed 11^ lb., but no portion of it was kept ; of course it had to 

 be broken up to obtain the contents for the table. I send you a 

 rough sketch of three claws that I have recently obtained for my 

 collection (I have the Crabs entire) ; you will see by the sketch that 

 one has a double movable chela. — William Daws (Mansfield, Notts). 



