66 GAMMARTILE. 



nearly meeting. The caudal appendages have their 

 branches nearly equal, whilst the last has the base pro- 

 duced into a sharp point at the upper distal extremity. 

 The terminal scale is lanceolate. 



We have not been able to determine the colour of this 

 species, which is the largest of the genus, not having 

 seen any living or fresh specimens. The surface of the 

 skin is irregularly covered with very small sharp hairs, 

 so minute that they can only be detected by a high 

 power of the microscope. This species is nearly as 

 large again as either of the others, and its geographical 

 range is also considerable. 



We have received specimens from our valued friend 

 and correspondent, Mr. Geo. Barlee, who has taken them 

 with the dredge at St. Ives, on the north coast of Corn- 

 wall, and also from the Shetland Islands. We have also 

 received it from the coast of Northumberland, from 

 the Rev. A. M. Norman. It also occurs, not uncom- 

 monly, in Berwick Bay, whence we received specimens 

 many years since from the late lamented Dr. George 

 Johnstone. 



Beneath is a sketch of Whitby Rocks, on the coast of 

 Northumberland, from the clever pencil of Miss M. 

 Hancock. 



