258 Part I[1.—Twelfih Annual Report 
A second species of Pseudowestwoodia has lately been discovered in 
material from Cromarty Firth. It differs from that now described in 
the structure of the anterior antenne, and in the armature and form of the 
first and fifth feet. This species is to be described later on. 
Family LichomoLeipa. 
Genus Pseudanthessius, Claus (1889). 
| Lichomolgus, Thorell (Pars) 1859]. 
Pseudanthessius liber (Brady and Robertson). 
1875. Lichomolgus liber, Brady and Robertson (10), p. 19C 
1880. Lichomolgus liber, Brady (8), vol. iii. p. 44, pl. Ixxxvi. 
figs. 1-13. 
1893. “‘Lichomolgus liber, I. C. Thompson (33), p. 33, pl. xxv. 
figs. 2 a, 0. 
Habitat.—Vicinity of Inchkeith (north end). Scarce. 
As has been pointed out by Dr Canu (Les Copepodes du Boulonnais, p. 
241), one of the principal characters by which Psewdanthessius, Claus, is 
distinguished from Lichomolgus proper, is the structure of the fourth pair 
of thoracic feet, the inner branches of which, in Psewdanthessius, are only 
one-jointed, and furnished with two terminal sete. In Lichomolgus 
proper, the inner branches of the same pair of feet are two-jointed, and 
the first joint has a seta on the inner distal angle, while the second carries 
two spines or spiniform sete atthe apex. According to this arrangement 
the following British species of the Lichomolgide will be included in the 
genus, Pseudanthessius, Claus. 
Pseudanthessius liber (Brady and Robertson), as recorded above. 
Pseudanthessius thorellit (Brady and Robertson), (= Lichomolgus 
thorellit, Brady and Robertson). 
Pseudanthessius gracilis, Claus. 
Pseudanthessius sauvagei, Canu. 
The last three, as well as the first, have been obtained in the Forth, and 
will be referred to in the sequel. 
The following British species of the Lichomolgide will be included in 
Lichomolgus proper :— 
Lichomolgus fucicolus, Brady. 
Lichomolgus furcitlatus, Thorell. 
Lrchomolgus forficula, Thorell. 
Lichomolgus albens, Thorell. 
Lichomolgus hirsutipes, T. Scott. (Firth of Forth.) 
Lichomolgus agilis, Leydig (= paremare concinnus, T. Scott. 
Firth of Forth.) 
The following species of the Lichomolgide have also been recorded 
from the British seas :— 
Sabelliphilus sarsi, Claparide (recorded by I. C. Thompson, Liverpool). 
Species belonging to Sabvelliphilus have the inner branches of the 
fourth pair of swimming-feet three jointed, and furnished with two barbed 
setee on the inner margin, and two slender smooth setz at the distal ex- 
tremity. ‘The first two joints of the anterior antenne in Sabelliphilus 
are considerably dilated. 
