of the Fishery Board for Scotland. 257 
strong desire was felt to include it in that genus; but it was clearly per- 
ceived that in order to do so a considerable modification of the definition of 
that genus would be necessary. In Westwoodia the secondary branch of 
the posterior antenne is two-jointed, and the first pair of swimming-feet 
have the inner branches ¢hree and the outer only one-jointed. 
Pseudowestwoodia andrewi,* sp. n. (Pl. IX. figs. 21-29.) 
Description.—Female, -46 mm. (;th of an inch). Body similar to 
Westwoodia nobilis (Baird) in general appearance, but smaller. Anterior 
antenne six-jointed, slender, and sparingly setiferous The first three and 
last joints are elongate, while the fifth is smaller than any of the others. 
The proportional lengths of the joints are as follows :— 
Sho a Ont) S312 
Licvisy Scot Gey SONA 
The posterior antenne consist of two sub-equal joints. The small one-jointed 
secondary branch springs from near the middle of the first joint (fig. 23). 
Mandible-palp with a moderately large basal joint bearing two small one- 
jointed apical branches, each branch furnished with several slender sete 
(fig. 24). Posterior foot-jaws moderately stout. Terminal claw slender, 
rather longer than the joint from which it springs. The first joint bears a 
small seta near its inner distal angle, and a similar seta springs from about 
the middle of the inner margin of the second joint (fig. 25). The outer 
branches of the first pair of swimming-feet are about equal to half the 
entire length of the inner branches, and composed of two sub-equal joints. 
The first joint is armed with a stout spine at the outer distal angle, while 
the second joint bears a similar spine near the middle of the outer 
margin. One small seta near the lower part of the inner margin, and two 
spiniform sete at the apex. The first joint of the inner branches is 
moderately stout and elongate, and becomes narrower towards the distal 
end. A long plumose seta springs from the inner margin at about one-third 
of the length of the joint from the proximal end. The second is small and 
narrow, and only equal to about one-fourth of the length of the first joint, 
and furnished with two slender, moderately elongate and spiniform apical 
setz. A stout spine springs from both the inner and outer distal angles of 
the second basal joints (fig. 26). The second, third, and fourth pairs are 
nearly as in Westwoodia nobilis (Baird), The fifth pair are small and 
foliaceous. The length of the produced inner portion of the basal joint is 
scarcely equal to the breadth of the proximal end. Distal end broadly 
truncate, and furnished with four spiniform setz and a short moderately 
stout spine—the spine being at the exterior angle. Secondary joints small, 
extending little beyond the end of the produced inner portion of the basal 
joints ; sub-quadrangular in form, and armed with three short but strong 
dagger-shaped spines on the somewhat obliquely truncate end, and a 
small spine and a spiniform seta on the distal part of the inner margin 
(fig. 28). Caudal stylets very short. A short stout spine springs from the 
outer distal angle of each stylet, and the inner of the two principal tail 
setz is about one-third longer than the other. 
Habitat.—Otf Burntisland. Frequent. Among material dredged in 
three or four fathoms water. 
Remarks.—This small but interesting species is readily distinguished 
from others, even without dissection, when examined under the micro- 
scope, by the peculiar armature of the fifth pair of thoracic feet. It seems 
to have affinities with Westwoodia on the one hand and with Harpacticus 
on the other, and forms a connecting-link between them. 
* The species is so named in compliment to my son, Andrew Scott, to whose pains- 
taking and ever-ready assistance and facile pencil I owe so much of my success 
among the Copepoda, 
