242 Appendices to Sixth Annual Report 
ARTOTROGIDA, Brady. 
Artotrogus Boecki, Brady. 
Artotrogus Boeckii, Brady, Mon. Brit. Cop., vol. i. p. 60, pl. xei. 
figs. 1-9, 1880. A number of specimens of this species were 
taken in Granton Harbour; they were obtained by washing 
a specimen of Chalinula oculata found attached to the pier at 
extreme low water; they had probably been seeking shelter 
about the Sponge (S. F.B.). 
Artotrogus magniceps, Brady. 
Artotrogus magniceps, Brady, Mon. Brit. Cop. Ell: 
pl. xciii. figs. 1-9, 1880. A few specimens, in material 
dredged west of Queensferry (S.F.B.). 
Artotrogus papillatus, n. sp. 
This species was dredged in deep water a little west of Inch- 
keith, and is described on p. 
Acontiophorus scutatus, Brady and Robertson. 
Acontiophorus scutatus, Brady, Mon. Brit. Cop., vol. ui. p. 69, 
pl. xe. figs. 1-10, 1880. Occasionally among dredged 
material from the vicinity of Inchkeith (S.F.B.). 
Remarks.—The preceding are all the species of Copepoda that have 
been identified, but there are several others, which, from their general 
distribution around our shores, may be expected to be yet found in the 
Torth. The following additional species have been observed in Cromarty 
Firth, near Invergordon—Laophonte curticanda, Boech; Porcellidium 
jimbriatum, Claus; Cyclopicera nigripes, B. and R., and Cyclopicera 
Gracilicanda, Brady—which do not appear to have been previously 
recorded from that district. 
The Calanidze, which include most of the free swimming or pelagic 
species, are the most important of the Copepoda in relation to the food 
supply of fishes and especially of young fishes. The majority of the 
others keep near the bottom, and seek shelter and possibly food among 
the forests of Algze and Zoophytes. It is probable that Shrimps, Prawns, 
Schizopods, and other small Crustaceans feed on these, and they thus 
become, though indirectly, of nearly equal importance with the others. 
The greater number of the Calanidze, and some of the Harpacticide, have 
already been recognised among the contents of the stomachs of herring 
and of the young of several species of Gadidz ; but a thorough and 
practical acquaintance with the group in their living state is required to 
enable one to identify them with anything like certainty in the stomach 
of fishes. 
OSTRACODA. 
CYTHERID. 
Cythere lutea, Miiller, 
Cythere luteu, Brady, Trans. Lin. Soc., vol. xxvi. p. 395, pls. 
XXVill., xxxix., 1870. Gulland Bay, vicinity of Inchkeith ; 
frequent (S.F.B.). 
Cythere pellucida, Baird. 
Cythere pellucida, Brady, op. cit., p. 397, pls. xxvili., xxxviii. 
Largo Bay, Gulland Bay ; not infrequent (S.F.B.). 
Cythere tenera, Brady. . 
Cythere tenera, Bay, op. cit., p. 399, pl. xxviii. Gulland Bay, 
deep water, west of May Island ; not very common (S.F.B.). 
