16 



TEE ZOOLOGIST. 



On June 8th a very curious example was obtained, with the 

 free chelae adorned, or inconvenienced, by an extra point that 

 turned off at a right angle and curved slightly under the fixed 

 chelae, so that very little movement could be made by the nipper; 

 roughly speaking, it was as " lockjawed " as a rodent would be 

 whose abnormal incisor tooth might have grown round and closed 

 its point in the outside of the other jaw. On the 23rd a "big 



Edible Crab (with abnormal pincer claw). 



claw " was given to me to which was attached a smaller perfect 

 claw with fixed and free chelae quite in working order. 



For the benefit of those who might like to see or study such 

 crustaceous variations, I may add that these have been sent to 

 Kelvingrove Museum, Glasgow, where many other similar finds 

 have preceded them. 



One other curious Crab that has been preserved for Yarmouth 

 Tolhouse Museum came to hand on September 6th. 'The right 

 pincer claw (looking down on it from above) is normal, but the 

 left, of equal size to it, is turned quite in an opposite direction 



