10 DE. T. SCOTT ON COPEPOBA 



are nearly similar in form and armature to those of the male of 

 Dactylopus Strdmii (PI. 3. fig. 3). 



Perhaps the Dactylo'pus just described ought to be regarded 

 as a distinct species, because of the differences which characterize 

 both sexes when compared with its nearest of kin, Dactyloinis 

 Strdmii (Baird), but meanwhile I prefer to consider it merely as 

 a variety of that species. A number of males and females were 

 found. 



Idta, PJiilippi, 1843 *. 



Idta furcata {Baird). 



This sjDccies was also washed from the piece of perforated 

 wood dredged at Faroe, and is the last I have at present to record. 

 Idya furcaia appears to have an extensive distribution ,; it is a 

 moderately common form around the British Islands, and it 

 sometimes occurs in large numbers in the material washed from 

 the filters at the Sea-fish Hatchery of the Eishery Board, for 

 Scotland ; it has been obtained in gatherings of Copepoda from 

 Franz-Josef Land and other places within the Arctic seas, and 

 also in material collected by the aid of a ship's pump in the 

 vicinity of Suez. Its occurrence near Faroe at a depth of over 

 80 fathoms is an indication that the species is not limited to 

 ]ittoral or shallow-water conditions. 



EXPLANATION OF THE PLATES. 



Plate 1. 

 PseudotacMdius similis, sp. k. 



Fig. L Female, dorsal view. X 64. 



2. One of the antennules. x 190. 



3. One of the antenna, x 190. 



4. One of the mandibles. X 300. 



5. One of the maxillae. X 253. 



6. One of first pair of thoracic feet. X 253. 



7. One of fourth pair, x 253. 



8. Foot of fifth pair. X 253. 



Laophonte faroensis, sp. n. 



Fig. 9. Female, dorsal view, x 52. 



10. First maxilliped. X 500. 



11. Second maxilliped. X 300. 



* jVIon. British Copepoda, Erady, vol. ii. p. 171 (1880). 



