Mr. T. Scott on Scottish Crustacea. 3 
thoracic feet only ; this includes only one species, Galathea 
intermedia, Lilljeborg. 2nd, species furnished with epipo- 
dites on the first three pairs of thoracic feet; this group 
comprises G'. squamifera, G. nexa, and G. dispersa. 3rd, 
species without epipodites on the thoracic feet; only one 
Galathea (G. strigosa, Fabr.) belongs to this group. Our 
Galathea belongs to the middle group, but the second and 
third joints of the third maxillipeds differ somewhat in their 
proportional lengths from the three species composing the 
group. I am inclined, however, to ascribe it to the last one, 
as the form of the rostrum agrees more closely with the 
rostrum of that species. 
Pleurocrypta Patiencei, sp. n. 
(Pl. L. figs. 3, 4.) 
This Pleurocrypta was obtained on a specimen of Caridion 
Gordont (Spence Bate) dredged in the Clyde by Mr. Alex- 
ander Patience, of Glasgow, who kindly presented it to me, 
and in compliment to whom I have named it. 
The parasite was attached, as usual, under the cephalic 
shield, and in the present instance on the left side, of the 
Caridion, and is represented by both male and female 
specimens. 
The female is distinctiy unsymmetrical, and measures 
about 4:6 millim. (nearly } of an inch) in length; the 
greatest width, which is near the middle, is equal to about 
two thirds of the length. The anterior end is obliquely 
truncate, while posteriorly the sides converge somewhat 
evenly and terminate in a bluntly rounded apex. The 
cephalon is deeply immerged in the first segment of the meso- 
some, and in this respect the female resembles a female 
Bopyrus or Bopyroides. Vhe uropoda consist of two small 
elongate-oval plates, similar to those of Pleurocrypta micro- 
branchiata, G. O. Sars (P. intermedia, Giard and Bonnier), 
and the pleopoda are also, as in that species, scarcely 
developed. 
The male is subcylindrical and moderately narrow (fig. 4) ; 
its entire length is about 1°6 millim. (!; of an inch) and its 
greatest width is equal to rather more than one third of the 
length. ‘The head is small, being scarcely one sixth of the 
entire length; it is broadly rounded in front and rather 
narrower than the next segment. ‘The segments of the 
mesosome, though distinct, are not widely separated from 
each other, and they are all of nearly equal size. The meta- 
