of the Fishery Board for Scotland, A61 
In the fifth pair the basal joints are broadly foliaceous and sub- 
triangular in outline, with the apex truncate and provided with four 
spiniform sete, the outermost of which is very small; the secondary 
joints are long, narrow, and cylindrical, being about four times longer 
than broad, the extremity, which is obliquely truncate, carries several 
setee, the two inner ones being longer than the others (fig. 17). 
The caudal furca are shorter than the last abdominal segment; the 
furcal sete are elongated (fig. 19). 
Habitat.—Station VI. (off St. Monans), Firth of Forth, dredged on 
July 8th, 1901. The species is apparently very rare. (For drawings of 
what may be the male of this species, see Pl. XXII., figs. 36-42, and 
Be eX! ., fig. 1.) 
Remarks.—in some respects Ameira propinqua comes rather near to 
Ametra longirenis, T. Scott, the fifth feet especially being very similar 
to those of that species, as well as to those of Amezra longipes, Boeck, 
but the structure of the antennules and of the first pair of feet separate 
it distinctly from both the species named. 
Pseudotachidius coronatus, T. Scott 
1898. Pseudotachidius coronatus, T. Scott, 16th Ann. Rept. 
Fishery Board for Scot., pt. 11i., p. 267, pl. xiil., figs. 12-26 ; 
pl. xv., figs. 1-4. 
This distinct species has been obtained in a gathering of small 
erustacea dredged in Loch Etive in 55 to 65 fathoms on September 
17th, 1901. Pseudotachidius coronatus has not previously been recorded 
out of the Clyde district. 
Pterinopsyllus insignis, G. S. Brady. 
1868. Lophophorus insignis, G. S. Brady, Mon. Brit. Copep., 
vol. i., p. 122, pl. xiii., figs. 1-10. (See also op. cit., vol. iii., 
p. 23, where the generic name is changed to Pterinopsyllus, 
—‘‘ Lophophorus” being preoccupied.) 
This fine species was obtained in the same gathering as the Pseudo- 
tachidius just recorded, and appears to be the first record of it from the 
West of Scotland. It has in previous years been obtained in the Firth 
of Forth and the Moray Firth. Although Pterinopsyllus insignis and 
Pseudotachidius coronatus have a general resemblance to one another 
they may be readily distinguished by the difference in the lengths of the 
antennules—those of the first-named species being distinctly longer 
and more slender than in the other. 
Mesochra macintoshi, T. and A. Scott. 
1895. Mesochra macintoshi, T. and A. Scott, Ann. and Mag. Nat. 
Hist.,. (6), vol. xv., p- 53, pl. vi., figs. 1-7. 
Mesochra macintoshi, which was first observed amongst a number-of 
peculiarly slender copepods collected on the south shore of the Firth of 
Forth near Musselburgh, has lately been obtained at Station VI. (off St. 
Monans). It is apparently a rare species, but being one of those forms 
which live upon the bcttom it may from its small size be easily over- - 
looked. 
Pseudomesochra, 'T, Scott (gen. nov). 
This genus is somewhat intermediate between Mesochra, Boeck, and 
Cletodes, G. S. Brady. The antennules (anterior antennz) are composed 
