new or rare Crustacea from Scotland. 243 
are comparatively slender and composed of two unequal joints, 
the first being only about half the length of the second. ‘The 
first joint of the fifth pair is short, the second large and 
foliaceous, thickly covered with cilia, and furnished with four 
subterminal sete. The abdomen and stylets together are 
only about one third the length of the cephalothorax. Caudal 
stylets nearly equal to the combined length of the last two 
abdominal segments. The base of the principal seta of each 
stylet is considerably enlarged and is articulated to the elon- 
gate slender distal portion. 
Hab. Loch Linnhe (near the mouth of Loch Spelve), 
Argylshire, 1892. 
Remarks. This curious species resembles some of the 
Lichomolgide in general appearance, but it differs from any- 
thing known to us in the rudimentary structure of the mouth- 
appendages and in having the inner branches of all the first 
four thoracic feet two-jointed. Though obtained among 
dredged material, its structure clearly indicates semiparasitic 
habits similar to the Lichomolgide and other closely allied 
forms ; but its host is at present unknown to us. 
The following interesting copepods have also recently been 
obtained :— 
so CAE Sse, Neat | Moray Firth (the last three 
tertnopsyllus insignis, Brady. [Sea een, I 
Misophria pallida, Boeck. Ate apes) NOE 
Laophonte monensis, 1. C. @ : aye 
| previously recorded for 
Thompson. eae dag pu ee 
Thalestris peltata (Boeck). | the east of Scotland. 
Caligidium vagabundum, Claus. 
Caligidium vagabundum, Claus, Arbeit. zool. Inst. Wien, vol. viii. 
(1889) p. 367, Taf. i. figs. 1-7. 
New to the British fauna. 
One specimen of this curious species has recently been 
obtained among dredged material from the Moray Firth, 
depth 130 fath. 
The structure of the anterior antenn, with their extremely 
long filamentous hairs, and the structure of the posterior foot- 
jaws and first thoracic feet enable the species to be readily 
distinguished. The species was described by Dr. Claus from 
a single specimen in 1889 (see op. cit.), and, so far as we 
know, this is the only other record of its occurrence. Dr. 
Kugene Canu (‘ Les Copépodes du Boulonnais,’ 1892, p. 255) 
