of the Fishery Board for Scotland. 265 
frequent in the tow-net collections. The two dorsal cusps appear to be 
stronger in the male than in the female. The telson is of the form of 
narrow triangular plate with a pointed extremity, and furnished with a 
minute hair on each side of the apex. 
ANNELIDA. 
Family NEMERTIDA. 
Genus Cerebratulus. 
Cerebratulus angulatus (O. F. Miiller). 
1853. Gordius fragilis, Sir John Dalyell (15), vol. ii. p. 55, pls. vi., 
Vil., Vil*. 
1874, Cerebratulus angulatus, W. C. M‘Intosh (22), p. 175. 
1894. Cerebratulus angulatus, T. Scott, Ann. and Mag. Scot. Nat. 
Hist., Part 10, p. 118. 
A specimen of Cerebratulus angulatus, measuring about 14 inches in 
length, was obtained among some trawl refuse from Largo Bay (off the 
Wemyss). I cannot find any previous record of Cerebratulus having 
been taken in the Forth. Harry Goodsir and Sir John Dalzell publish 
records of this species for Scotland, but do not give the localities. 
 MOLLUSCA. 
CONCHIFERA. 
Family PaAnDORIDZz. 
Genus Lyonsia, Turton. 
Lyonsia norvegica (Chemnitz). 
1865. Lyonsia norvegica, J. G. Jeffreys (19), vol. iii. p. 29 (vol. v. 
p. 190, pl. xlviii. fig. 2.) 
Habitat.—Vicinity of the Bass Rock ; depth of water 22-23 fathoms. 
Bottom, sandy mud. A living specimen of this mollusc was taken a 
short distance north-east of the Bass Rock on 30th October 1893. There 
does not appear to have been hitherto any very satisfactory record of the 
occurrence of Lyonsia in the Firth of Forth. There is no record of its 
occurrence in the Forth, either by the Rev. W. Wood (Kast Neuk of Fife), 
or by Leslie and Herdman (Invertebrate Fauna of the Firth of Forth). 
Dr Henderson, in his notes on the Forth Invertebrates, in the Proceedings 
of the Royal Physical Society of Edinburgh (1883-84), records the 
discovery of ‘a single broken valve at Newhaven’ ; but he states distinctly 
that ‘in all cases where ‘“‘ Newhaven” is given as the locality, it must be 
‘understood that the specimens are from the fishermen’s lines, and probably 
‘taken to the east of the May Island.’ The present is therefore the only 
satisfactory record I know of for Lyonsia norvegica as a member of the 
Forth fauna. 
The following is a list of some of the works more particularly referred to 
in this contribution towards a Natural History of the Firth of Forth :— 
be 1883. Auvrivituius, C. W.8., Bidrag till Kénnedomen om Krusta- 
ceer, som lefva hos Mollusker och Tunikater ; Akademisk 
Afhandling. 
