REVISED REPORT ON L.M.B.C. COPEPODA. 205 
surface townets as a free swimmer. On some occasions 
when we have left a townet tied to a buoy all night, 
numbers of this species have been captured. 
Alteutha interrupta, Goodsir. (Pl. XXIV, fig. 1. a. bd.) 
Length 1.30 mm. Frequently found in similar situa- 
tions to the last species. The shape of the terminal joint 
of the fifth feet (0) and the number of the spines thereon 
distinguish this from the preceding species. 
Alteutha crenulata, Brady. (Pl. XXIV, fig’ 2.) 
Length 1 mm. A gaily coloured uncommon species. 
Our examples have been taken in Redwharfe Bay, Anglesea, 
and about Puffin Island, chiefly amongst the littoral Ale. 
Porcellidium tenwicauda, Claus. (Pl. XXIV, fig. 3.) 
Length 1mm. Our only specimen was dredged from 
the ‘‘ Mallard” (1892) outside Port Erin Bay in 20 fathoms. 
Porcellidiwm viride, Philippi. (Pl. XXIV, fig. 3. a.) 
Length 0.80 mm. One specimen only was dredged in 
Port Erin Bay amongst mud, at 4 fathoms. The caudal 
segments of this species (a) distinguish it from the pre- 
ceding species. 
Idya furcata, Baird. (Pl. XXIV, fig. 4.) 
Length 1.25 mm. Common throughout the district 
amongst Alez and in rock pools; also common as a free 
swimmer near the land. The tufts of plumose sete at 
the apices of the spines of the first pair of feet at a glance 
distinguish this species. 
Scutellidium tisboides, Claus. (Pl. XXIV, fig. 5, a toc.) 
Length 0.65 mm. One specimen only recorded in the 
district, taken by townet in Douglas Bay. 
Scutellidium fasciatwm, Boeck. (Pl. XXIV, fig. 5. dto/.) 
Length 1mm. Not uncommon in tidal rock pools at 
Hilbre Island; also dredged in Port Erin Bay, where it 
was also taken by townet during electric ight illumination. 
One specimen, found in a tidal pool at Hilbre Island, has 
