of the Fishery Board for Scotland. 301 
CYCLOPIDZ. 
Oithona, setiger (Dana). 
1852. Acartia setiger, Dana, ‘U.S. Expl. Exped.’ 
Habitat.—East of Inchkeith, among bottom tow-net material, several 
specimens of this species were obtained in March of this year (1891). 
They were readily distinguished from the more common O. spinirostris, 
Claus, by the extremely long and slender setz of the anterior antenne 
and of the fifth feet. This appears to be the first British record of 
Oithona setiger. 
NotTODELPHYIDA. 
Doropygus normant, Brady. 
1878. Doropygus normani, Brady, ‘Mon. Brit. Copep.,’ vol. i. 
p. 136, pl. xxxui. figs. 1-14. 
Habitat.—In the branchial cavities of Ascidians, obtained off Mussel- 
burgh by the trawl-net and dredge. This Doropygus is comparatively 
common, and is the only species observed, but I do not often find it in 
other parts of the Forth. I have examined many Ascidians from deep 
water in mid channel east of Inchkeith, and find them much freer of 
entomostracan parasites than those from the inshore waters of the south 
side of the Firth. 
BuPRORID2. 
Enterocola eruca, Norman. 
1868. Enterocola eruca, Norman. Last Shetland Dredging 
Report, ‘ Brit. Assoc. Report,’ p. 300 
1878. Enterocola eruca, Brady, loc. cit., p. 147. 
Habitat.—In the intestine of Ascidians taken by trawl-net off Mussel- 
burgh in March of this year (1891). Four specimens were obtained from 
as many Ascidians—one in each Ascidian—and from znside the intestine, 
thus.differing in their habitat very markedly from the other entomostracan 
parasites found in Ascidians. Dr G. 8S. Brady, to whom I sent a speci- 
men, identifies it as the Hnterocola eruca, Norman. Dr Norman obtained 
a single specimen adhering to the intestine of Ascidia intestinalis while 
dredging among the Shetland Islands, which appears to be the only 
previous British record. Dr Norman, in his ‘ Report to the British 
Association in 1868,’ says that it is ‘allied to Enterocola fulgens, Van 
‘Beneden (‘‘ Recherches sur la Faune littorale de Belgique Crustacés,” 
1861, p. 149, pl. xxvi.), but is apparently distinct.’ * 
HARPACTICID®. 
Jonesiella spinulosa (Brady and Robertson). 
1875. Zostme spinulosa, B. and R. ‘Brit. Assoc. Report,’ 
p. 196. 
1880. Jonesiella spinulosa, Brady, Joc. cit., vol. ii, p. 41, pl. xlviii. 
figs. 14-18 ; pl. xlix. figs. 14, 15. 
Hatitat.—Largo Bay, dredged, several specimens, ¢ 9. Thisis quite 
distinct from Jonesiella fusiformis (B. and R.). 
Ectinosoma atlanticum (Brady and Robertson). 
1873. Microstella atlantica, Brady and Robertson, ‘Ann. and 
Mag. Nat. Hist.,’ ser. 4, vol xii. p. 130, pl. ix. figs. 11-16, 
* Brit. Assoc. Report, 1868, p. 300. 
