of the Fishery Board for Scotland. 143 
SUB-ORDER CYCLOPOIDA. 
Fam. CycLopipa. 
Genus Huryfe, Philippi (1843), 
Huryte longicauda, Philippi, var, minor. PI. x., figs. 13 and 14. 
Huryte longicauda is a moderately common species, and has already 
been recorded from the Firth of Forth and other places. Two forms, a 
smaller and a larger, have occasionally been observed, but they appear to 
differ very little from each other except in size. Figures 10 and 13 on 
plate x. show a female of the usual size and one of the small variety. 
The first measures about 1:2mm. and the other ‘8mm. in length ; the 
drawings of them are similarly enlarged. But though they differ so 
distinctly in size, there appears to be scarcely any structural difference 
between them: for convenience sake, however, the small form might be 
distinguished as var. minor. The fifth foot in this variety is slightly 
different in shape and armature from that of the other, as shown by 
figures 12 and 14. Both of the forms represented here are from South 
Bay, Firth of Forth. 
SUB-ORDER HARPAC rICOIDA, 
Fam. LonGIpepips 
Genus Longipedia (1863), 
Longtpedia coronata, Claus. PI. x., figs 15-17, 
Prof. G. O. Sars has shown that the Longipedia usually recorded from 
Scottish waters as Longipegia coronata, Claus, was not the species 
described by him under that name, but another and quite distinct form 
to which he has given the new name of Longidepia Scotti.* The true 
L. coronata, Claus, appears to be moderately rare in our seas, and is pro- 
bably limited to moderately deep water. I have only observed it in two 
distal end of the basal joints of the outer and inner branches (fig. 15), 
The fifth pair of feet, though similar to those of L. Scotti, are slightly 
different in form and armature (fig. 16); while the last segment of the 
abdomen bears two short stout spines on each side of the prominent 
medium spine on the posterior dorsal margin (fig. 17). 
Habitat.—Moray Firth, off Fraserburgh, September 29, 1904, 
collected by Dr. H. ©, Williamson, to whom I am indebted for the 
specimens, The same species was also obtained in one of the “ Gold- 
seeker ” gatherings, and is recorded in the Bulletin of the Council of the 
International Bureau for N ovember, 1904, 
*Sars’ Crustacea of Norway, vol. y., p. 11, pl. y., fig. 1 (1904), 
