218 Part III.— Twenty. fifth Annwal Report 
The first maxillipeds are elongated, and each is armed with a long and 
powerful terminal claw having a stout seta at its base nearly as in 
Nogagus lunatus, Stp. and Ltk.—a species which this form resembles in 
some other particulars (fig. 12), 
The second maxillipeds are short and very stout, and armed with 
strong terminal claws as shown in the drawing (fig. 13). 
The first four pairs of thoracic feet are composed of two sub-equal 
branches, and both branches in each of the first three pairs are distinctly 
two-jointed. In the first pair the end joints carry three long plumose 
setz, the end joints of the outer branches being also provided ‘with four 
spines on the exterior margin (fig. 14). 
The second pair are nearly similar in structure and armature to the 
second pair in Nogagus latus (fig. 15). 
The third pair also resembles the same pair in that species, but the 
spines on the exterior edge of the outer branch are rather stronger, and 
the second joints of both branches are provided with only four elongated 
though stout terminal sete (fig. 16). 
The fourth pair are rather small, and the inner branch is bi-articulate ; 
a seta springs from the inner distal angle of the first joint, and the 
second carries three terminal sete. The outer branch, which appears to 
consist of two coalescent joints, with the articulation between them 
obsolete or nearly so, bears three sete round the inner distal margin, 
and four spines—three small and one moderately large—on the exterior 
edge ; the setz are all elongated and plumose (fig. 17). 
Habitat.—Taken from a piked shi -fish (Squalus acan‘hius) captured 
in the North Sea in 1902. 
Genus Dinemoura, Latreille (1829). 
Dinemoura producta (O. F. Miiller), Pl. xv., figs. 18-20 (9). 
This species was recorded in Part III. of the Eighteenth Annual Report 
of the Fishery Board of Scotland, and I now supplement the previous 
description by the following additional note:—-The antennules, as shown 
by the drawing (fig. 18), resemble in their armature those of Nogagus latus 
just described. The first pair of thoracic feet are of a peculiar structure ; 
the inner branch is small, and it and the second basal joint bear a few 
small rounded wart-like processes. The outer branch has the first joint 
expanded and gibbous at the proximal end exteriorly, while the distal 
end is produced so as to extend partly over the small rounded second 
joint. Both branches are furnished with three marginal or sub-terminal 
arcuate sete fig. (19). 
The second pair, which is also slightly distorted, has both branches 
three-jointed and of about equal length. The drawing (fig. 20) shows 
the structure and armature of this pair. 
This species has been obtained occasionally on Porbeagle sharks landed 
at the Aberdeen Fish-market. 
Another species usually found on the Porbeagle shark, viz., Echthro- 
galeus coleoptratus, has also been obtained adhering to the dorsal fin of a 
piked dog-fish that was captured in the Moray Firth in October, 1900. 
I do not know of any previous record of Hchthrogaleus from this fish. 
