of the Fishery Board for Scotland. 



171 



and scarcely half the length of the outer branches ; the first joint is very 

 minute, the second is elongate and setiform, and bears a single terminal 

 hair ; the outer branches are slender and elongate, and the marginal 

 spines are also slender (fig. 25). In the fifth pair the basal joint is small, 

 interiorly subquadrangular, but produced exteriorly to form the base of a 

 moderately stout seta • an elongate plumose seta springs from the inner 

 angle. Secondary joint narrow suborate, the length being equal to fully 

 three times the width at the broadest part ; it is furnished with six seta), 

 — three on the outer margin, one on the inner margin, and two at the 

 apex (fig. 26). Caudal stylets elongate and narrow, rather longer than 

 the last abdominal segment, and somewhat attenuated towards the distal 

 end. Two small setae spring from the outer edge of each stylet, and rather 

 nearer the base than the apex. Terminal setae, two — one small and one 

 elongate (fig. 27). 



Habitat. — Near Carradale, Kilbrennan Sound. 



Remarks. — The species now described somewhat resembles Gletodes 

 propinqua^ Brady and Robertson ; but the structure and slender form of 

 the swimming feet readily distinguish it from that form, and also from 

 the next. No males were observed. 



Cletodes Mrsutipes, sp. u. (PI. I. figs. 11-18). 



Description of the Female. — Length about "6 mm. (^th of an inch). 

 Somewhat like Cletodes propinqua in general appearance (fig. 10). An 

 tennules five-jointed, short ; the first three and the last joints sub-equal ; 

 the fourth is very small ; the second, third, and fourth joints bear several 

 strong spines (fig. 11). The autennae are provided with short one-jointed 

 secondary branches, each with two setae (fig. 12). Mandibles rather 

 feeble, armed with about four elongate slender teeth (fig. 13). Both 

 branches of the first four pairs of swimming feet short and stout ; the 

 outer branches, three, the inner two, jointed ; the inner branches of the 

 first pair are equal to about three-fourths the length of the outer branches, 

 and the end joint is scarcely twice the length of the first joint ; both 

 the inner and the outer branches are densely fringed with short 

 hairs (fig. 15). The next three pairs have also both branches fringed 

 with short setae ; in the fourth pair the outer branches are 

 about one and a half times longer than the inner, and the apical 

 setae are very long and plumose (fig. 16). In the fifth pair the basal 

 joint is produced interiorly, so as to form a narrow and sub-quadrangular 

 lamina, the apex of which reaches beyond the middle of the secondary 

 joint ; it is armed with three stout spiniform setae, — one being at the apex 

 and two near the middle of the inner margin ; the secondary joint is 

 narrow oblong, the length being equal to nearly three times the width ; 

 the outer margin is densely fringed with hairs, and four spiniform setae 

 spring from the broadly rounded apex (fig. 17). Caudal stylets, about as 

 long as the last abdominal segment, foliaceus, and somewhat distorted \ 

 the inner margin being broadly and obliquely rounded, while there is a 

 slight concavity near the middle of the outer edge (fig. 18). 



Habitat. — Kilbrennan Sound, near Carradale • rather scarce. 



Remarks. — The structure of the mandibles and the stout and hirsute 

 thoracic feet are characters sufficiently distinct to distinguish this from 

 other British species ; the fringe of hairs on the margin of the secondary 

 joints of the fifth pair is frequently so coated with mud as to have the 

 appearance of a continuous brownish-coloured border. No males were 

 observed 



