DREDGING REPORTS. 



and find them to be carapaces of the larva of a Balanus, and not 

 of a Cythere. At the time when the Natural History of the 

 British Entomostraca was written we were not so well acquainted 

 with the development of the Cirripedia as at the present day, and 

 hence arose my friend's mistake. Cythere acuta must therefore 

 be struck out of our lists. Cythere simplex was dredged in 1862, 

 about 100 miles off Tynemouth, and again in 1864 off Holy 

 Island. Mr. G. S. Brady's collection contains specimens from 

 Bute, Shetland, and the Arctic seas. 



Cythere Icevata, n. sp. PL Y, figs. 13-16. 



Oblongo-ovate, highest before the middle at the commencement 

 of the supero-anteal slope ; length to breadth as one and three 

 quarters to one, moderately convex. Yentral margin slightly 

 concave on the anterior half, and convex posteriorly ; dorsal mar- 

 gin nearly straight, the anterior slope the longer. Anterior 

 extremity well rounded, gradually arched into the superior mar- 

 gin above, more suddenly rounded below. Posterior extremity 

 slightly produced centrally, the superior and inferior slopes nearly 

 equal. Lucid spots, consisting of four oblong impressions in a 

 transverse line, and a semicircular spot in front. Carapace white, 

 smooth, polished, with a few small scattered punctures ; valves 

 bordered by a keel-like fillet, which is more conspicuous behind. 

 Length, not one third of a line. 



Dredged July, 1864, off Holy Island, and I have also seen it 

 from the following localities : — Shetland and Boundstone Bay 

 (A. M. N.) ; Margate, South wold, Donegal, Pace's Bank, and 

 mouth of the Pibble (Mr. 0. S. Brady). 



Cythere multifora, n. sp. PI. VI, figs. 13-16. 

 Cythere rugosa, Norman, M.S. Brit. Assoc. Report for 1864, 

 {but not C. rugosa of Speyer.) 



Oblongo-ovate, of nearly equal height throughout, length to 

 breadth as two and a half to one, abruptly swollen immediately 

 above the margin of the valves, and thence sloping to dorsal 

 margin. Dorsal and ventral margins nearly straight, and sub- 

 parallel ; both extremities rounded. Dorsal view prismoidal ; 

 (parallel-sided, with conical extremities). Carapace excavated 



