400 



Dr. W. T. Caiman on 



right angles to the long axis of the propodus ; it is about 

 40 mm. long and is slightly curved to the inner or anterior 

 side like the immovable finger of the normal cheliped, which 

 it otherwise closely resembles in form and colour. On the 

 dorsal edge of the propodus, somewhat to the posterior or 

 outer side, is an irregular band of short tufted setse, and 

 there are some scattered and less conspicuous setse along the 



Fie:. 1. 





Abuormal walking-leg of Cancer pagufus. About half natural size. 



ventral edge, running on to the base of the immovable 

 finger. The dadylus is nearly straight and. cannot be bent 

 towards the immovable finger to a greater extent than is 

 shown in the figure. In general characters it resembles the 

 dactylus of the cheliped, but it has on the dorsal sui'face a 

 thick brush of short setae arranged in tufts and extending 



