CYNTHILIA. 147 



Franklin on the voyage of the ' Erebus ' and ' Terror/ He 

 and his companions must have long ago perished in the incle- 

 ment regions where their ships have been so long frozen in; 

 but it is hoped that the journals may yet be recovered. 

 Goodsir, by a letter received from one of the party, had 

 been busily engaged dredging in the Arctic seas, and many 

 a valuable observation on Crustacea (his favourite subject) 

 has been lost to science. 



Gen. 50. CYNTHILIA * 



Subabdominal fins composed of two joints ; four last fins 

 with the terminal plume double, with an opaque, bifurcate, 

 and convolute organ rising between each. 



Cynthilia Flemingii, Goodsir. (Plate IX. fig. 5.) — 

 Whole body of an opaque straw-colour, with the netted 

 portion of the eyes black. Lower anteunal scale nearly 

 twice as long as the peduncle. Beak slender and finely 

 pointed ; edges of middle plate of the tail spined. Length, 

 eight lines. 



Firth of Forth. This was found and described by the 



* Cynthia, J. V. Thompson. Name preoccupied and changed to Cyn- 

 thilia. 



