ON THE SHETLAND CRUSTACEA, TUNICATA, ETC. 295 
Paradowostoma obliquum, G, O. Sars, ‘ Shetland, Mr, D, Robertson ” (G. S. 
Brady). 
—— ensiforme, Brady. St. Magnus Bay and Bressay Sound, 5-50 fathoms. 
Jlewuosum, Brady. St. Magnus Bay, abundant, 
arcuatum, Brady. A few specimens, 50 fathoms, in St. Magnus Bay ; 
also a much smaller form, closely allied to, but perhaps distinct from, this 
species, common on Laminarix in Balta Sound ; it is of a green colour. 
Philomedes interpuncta (Baird)=Philomedes longicornis, Lilljjeborg. Two or 
three specimens on the Unst Haaf. 
Cypridina Norvegica, Baird, Proc. Zool. Soc. 1860, p. 200, pl. Ixxi. fig. 4 ; 
G. O, Sars, Overs. af Norges mar. Ostrac. p. 104. I have pleasure in 
announcing this, the grandest of European Ostracoda, as a member of 
the British fauna, a single specimen haying been procured on the Unst 
Haaf in 1867. 
Cylindroleberis Marie (Baird), Unst and Skerries Haafs, and St. Magnus 
Ba 
Bradycinetus Brenda (Baird)= Cypridina globosa, Liljeborg. “ Dredged in 
80-90 fathoms, sand, 20 miles east of the Noss, in the Shetland Isles, 
by R. M‘Andrew, Esq.” (Baird), 
Conchoécia obtusata, G. O. Sars. <A single imperfect Conchoéecia, believed to 
belong to this species, was procured from sand dredged on the Unst 
Haaf, 20 miles N. by EH. from Burrafirth, in 1863. 
Polycope orbicularis, G, O. Sars. 5-8 miles E, of Balta, 20-25 miles N. of 
Burrafirth Lighthouse, and in St. Magnus Bay, 40-100 fathoms. 
dentata, Brady’ The type specimen was from 100 fathoms, about 20 
miles N.W. by W. from Burrafirth. 
Order COPEPODA. 
Cyclops serrulatus, Fischer. This is the only Shetland species I have as yet 
determined, but I have seen others. 
nigricauda, n. sp. Antenne shorter than first segment of body, 21- 
jointed ; joints very short, all except first and last two shorter than 
broad. Lower antennz stout and strong, two-thirds as long as upper 
antenne ; third joint with a seta at distal extremity of hinder margin ; 
fourth (last) joint terminating in six long sete. Last feet 1-branched, 
well developed, with a strong seta on the middle of the outer margin, 
and two similar terminal sete, one at each angle of the extremity, with 
a very delicate and minute seta in the middle between them. Caudal 
lamin extremely long and slender, more than equal in length to three 
preceding segments, of a dark brown colour throughout the greater part 
of their length. 
A marine species found among Laminariz in Shetland, and also at 
Tobermory in the Isle of Mull, abundantly. The black colour of the 
basal portion of the caudal lamine is a very useful characteristic by 
which to distinguish the species with a low-power lens when mixed in 
a mass with other Copepoda. 
In the male the antennz are only 17-jointed, and the eaudal lamine 
shorter, about equal in length to the two preceding segments. 
pallidus, n. sp. Upper antenne shorter than first segment of body, 
11- or 12-jointed (the basal joints not very distinct); last two joints 
longer than broad, last joint but two broader than long, two joints pre- 
ceding this long, rest shorter. Caudal lamine scarcely twice as long as 
broad, and shorter than the preceding segment. 
