THE HIGHER CRUSTACEA OF LIVERPOOL BAY. 247 
yet he makes the difference between the above two species 
largely to depend on the number of joints init. Until it 
is proved more clearly than it seems to be at present, that 
there is more than one species having the characteristic 
raised lateral line on the carapace and free thoracic seg- 
ments parallel with the dorsal outline, I must incline to 
the opinion that both the above species should be referred 
to C. scorpioides (Montague). It is to be noted that the 
two species of Goodsir are evidently both straw-coloured, 
which does not agree with Sars’ definition. 
5. Lamprops fasciata, Sars.* (Pl. XVI, figs. 1-3.) 
Several specimens were taken, mostly females. The 
largest female measured 74 mm. from point of rostrum to 
tip of telson. Sars, who describes the female only, gives 
44 mm. as the length. In the male the carapace equals 
in length the first three thoracic segments. The lower 
antennee reach to the end of the second free thoracic seg- 
ment; the peduncle is thick and densely furred on the 
upper side. ‘This species resembles Pseudocuma cercaria 
in having three oblique striz or folds on the sides of the 
carapace, but it may be at once distinguished by its well 
developed telson and larger size. The peduncle of the 
uropoda has eight spines on the inner margin, of which 
the six distal are compound, i.e., are themselves spinous. 
It has been taken by Mr. D. Robertson in the Firth of 
Clyde, and at Tarbert, Loch Fyne. 
6. Diastylis spinosa, Norman(Brit. Ass. Report, 1868, p. 271.). 
Diastylis bimarginatus, Bate (A. & M.N.H., ser. 5, vol. i., p. 409, and cut). 
53 # Sim ( », ser. 5, vol. ii., p. 453, pl. xviii). 
D, bradyi, Norman (Ann. and Mag., N.H., ser. 5, vol. iii., p. 59). 
There can, I think, be no doubt that D. bradyi is the 
female of D. spinosa. Although adult males are rare, yet, 
* Om den aberrante Krebsdyrgruppe Cumacea, &¢., p. 191; and Norman, 
Ann, and Mag. N. H., 1887, p. 100, 
