of the Fishery Board for Scotland. 225 



Several specimens of what appears to be this species were obtained in 

 Loch Morar. 



Cyclops firabriatus, Fischer. 



1 1785. Cyclops crassicomis, Miiller, Entomostraca, p. 113, PL 

 XVIII. figs. 15-17. 

 1853. Cyclops fimbriatus, Fischer, Bull. Soc. Imp. Moscow, p. 94, 



PI. III. figs. 19-28, 30. 

 1891. Cyclops fimbriatus, Brady, op. cit., p. 25, PI. IX. fig. 1. 



This pretty Cyclops was moderately frequent in the bottom material 

 collected at the head of the loch. 



Family HARPACTiciDiE. 



Genus Attheyella, Brady. (See note at p. 235.) 



Attheyella spinosa, Brady. (PI. VI. figs. 11-20.) 



1880. Attheyella spinosa, Brady, Mon. Brit. Copep., vol. ii. p. 58, 

 PI. XLIII. figs. 15-18; PI. XLVL figs. 13-18. 



Female as described by Dr Brady (op. cit.). 



Male. — The third joint of anterior antennae dilated exteriorly so as to 

 form a large lobe-like process (fig. 23). Mouth organs and first and 

 second pairs of swimming feet as in the female. Both branches of third 

 pair of swimming feet three-jointed : the first two joints of the outer 

 branches are broad and of about equal length, the second joint is armed 

 on the outer half of the distal end with a strong conical spine slightly 

 curved outward at the extremity, third joint narrow and as long as the 

 other two together; the first two joints of the inner branch are very 

 short, the second being armed with a moderately long spiniform process, 

 the two edges of which instead of being straight are curved in a some- 

 what irregular zigzag manner ; the last joint, which is nearly twice as 

 long as the first two together, is furnished with a long plain terminal 

 seta, besides a short and plumose subterminal one. Fourth pair as in the 

 female. Fifth pair small ; basal joint moderately broad, somewhat 

 rounded, but not much produced posteriorly, and provided with two stout 

 plumose setae; secondary joint elongate-ovate, furnished with several 

 setae, as shown in the figure (fig. 18). Caudal stylets rather longer than, 

 and not so much dilated as those of the female. 



Attlieyella spinosa was frequent in the bottom material from the head 

 of the loch, and also in that from Brinacory. The large spines on the 

 outer branches of the third swimming feet of the male form a striking 

 character. 



Attheyella cryptorum, Brady. (PI. VI. figs. 21-31). 



1868. Canthocamptus cryptorum., Brady, Jour, of Micros. Sci., 



vol. ix., PI. VI. figs. 1-10. 

 1880. Attlieyella cryptorum, Brady, Mon. Brit. Copep., vol. ii. 



p. 60, PI. Lll.'figs. 1-18. 



Length, exclusive of caudal setae, *66 mm. (^-th of an inch). The 

 general form is something like that of Canthocamptus. Anterior antennae, 

 of the female, short, moderately stout, eight-jointed. A sensory filament 

 springs from the upper distal angle of the fourth joint. The proportional 

 length of the joints are as follows : — 



11 • 11 • 7 ' 7 • 6 • 8 • 7 • 10. 



