of the Fishery Board for Scotland. 117 
Canthocamptus. 
Canthocamptus inconspicuus, T. Scott. 
1900. Canthocamptus inconspicuus, T, Scott, 18th Ann. Rept. 
Fishery Board for Scotland, pt. iii., p. 390, pl. xiv., figs. 1-8. 
This small Harpactid was obtained in a gathering of Kntomostraca 
collected off Musselburgh in 1894, but only recently examined: this is 
the first time it has been obtained in the Firth of Forth, and it has only 
previously been recorded from the Moray Firth. Canthocamptus incon- 
spicuus somewhat resembles C. parvus, T. and A. Scott, in general 
appearance, and like that species it has antennules composed of six joints ; 
but it differs in several particulars, and one of the more obvious differences 
is the longer furcal joints, and by this character alone it ean be 
distinguished from £. parvus. 
Canthocamptus parvus, T. and A. Scott. 
1896. Canthocamptus parvus, T. and A. Scott, Ann. Nat. Hist. 
(6), vol. xviii, p. 6, pl. ii., figs. 14—22. 
This species has recently been obtained in several gatherings, one of 
which consisted of small Crustacea collected in the pond at the Sea-fish 
Hatchery, Bay of Nigg, June 25, 1902. Like the Canthocamptus 
previously mentioned, this one usually occurs very sparingly in any single 
gathering, but it has apparently a wider distribution, and has been 
observed not only at different times in the Firth of Forth, where it was 
first discovered, but also in the Moray Firth and in the Firth of Clyde. 
In this species the furcal joints are very short, and it thus differs from C. 
inconspicuus. C. parvus is usually found near the shore about the roots 
of alge, and especially where there is a muddy bottom. 
Genus Neobradya, T. Scott. 
Neobradya pectinifer, T. Scott. 
1892. Neobradya pectinifer, T. Scott, 10th Ann. Rept. Fishery 
Board for Scotland, pt. iii., p. 249, pl. xiii, figs. 19-32. 
A single specimen of this rare species occurred in a gathering of small 
Crustacea collected at the north end of Inchkeith, on November idth, 
1889, but not examined till October, 1902. The species was first 
observed among some dredged materials collected off St. Monans, and it 
was afterwards obtained in the Firth of Clyde,* but though its distribution 
appears to be somewhat extensive, I have only rarely observed it. 
Genus Tetragoniceps, G. S. Brady. 
Tetragoniceps pygmeus, T. Scott, sp. nov. PI. iv., figs. 11-19. 
Some time ago, when re-examining a gathering of small Entomostraca 
collected near Musselburgh in 1894, I observed odd specimens of a slender 
copepod very like Jetragoniceps incertus, T. Scott—a species described in 
the Tenth Annual Report of the Fishery Board for Scotland—but rather 
smaller than that form, and the fact that one or two of them were pro- 
vided with ovisacs showed that their smaller size could not be ascribed to 
immaturity, but on account of their likeness to the species named they 
* Brit. Assoc. Handbook on the Natural History of Glasgow and the West of 
Scotland (1901), p. 353. 
