REVISED T?,EP0TIT ON L.M.B.C. COPEPODA. 95 



Through scarceness of specimens and absence of males 

 I regret the necessarily imperfect description of this very 

 important addition to our fauna of a marine species of 

 Cyclops, assuming as seems probable that Cyclops ewarti, 

 Brady, found by Mr. T. Scott, F.L.S., about five miles 

 above Queen's Ferry, Firth of Forth, 1887, may have 

 found its way thither from a fresh water source. 

 TJioreIha hninnea, Boeck. (PI. XVII, fig. 4.) 

 Length 1.30 mm. Solitary specimens are occasionally 

 taken in the open sea and in dredged material. 



Hersilioides imffini, Thompson. (PL XVII, fig. 5.) 

 Length 0.80 mm. A few specimens were taken by tow- 

 net off Puf&n Island a few years ago when weekly 

 gatherings of material were sent to me from there for 

 examination, but it has not occurred since in the district. 

 GiardeUa ccdlianassce, Canu. (PI. XVII, fig. 6.) 

 Length 0.75 mm. A single specimen was taken by 

 townet in Liverpool Bay during the " Despatch " exped- 

 ition, 1886. This species was described by M. Canu in 

 "Bulletin Scientifique " series III, 1888, p. 410. 



Family Notodelphyid^. 

 Notodelphys allmani, Thorell. (PI. XVII, fig. 7.) 

 Length 4.0 mm. A few specimens were found by Prof 

 Herdman in the branchial sacs of the Ascidian Ciona 

 intestinalis dredged off the south end of the Isle of Man. 

 Doropygus pulex, Thorell. (PI. XVII, fig. 8.) 

 Length 1 .30 mm. Found by Prof. Herdman in company 

 with the preceding species, and also in the branchial sac 

 of Ascidiella scahra, dredged in Groudle Bay, Isle of Man ; 

 also in the branchial sac of Ascidia p)leheia, dredged from 

 the " Hyaena," off the Calf of Man, in twenty fathoms. 

 The male {h) is smaller than the female (a). 



