of the Fishery Board for Scotland. 
249 
Ncobrwlya pectin/' far*, nov. gen, et sp. (provisional name) (PI. XIII. 
figs. 19-32). * 
Female. — Body elongate, cylindrical ; length, exclusive of caudal stylets, 
1*2 mm. and composed of nine segments. The first cephalo-thoracic 
segment longer than the next two together. Rostrum short, obtusely 
rounded. Anterior antennae nine-jointed, about as long as the lirst body 
segment, stout, and well furnished with setae ; the proportional length of 
the joints are as shown by the formula 
13 ' 22 • 10 • 5 ' 3 ' 4 • 3 • 2 • 5 
1 • 2 - 3 • 4 '6 • 6 • 7 ' 8 • 9* 
One side of the fourth joint is produced to form the base of a long olfactory 
appendage. Posterior antennae large, three-jointed, the extremity of the 
last joint furnished with one plain and five plumose hairs ; the secondary 
branch is four-jointed ; the first joint is as long as all the other three 
together ; the first joint bears two seta3, the second and third one setae each, 
and the last two very small marginal and two long terminal setae. The 
mandible is well developed, having a broad biting part and a large two- 
branched palp — one of the branches is four-, the other one-jointed; both 
the basal part and the branches of the palp are furnished with setae. 
Maxillae nearly as in Longipeelia coronata. Anterior foot-jaw stout, five- 
jointed, the first joint large and possessing three marginal digitiform lobes, 
each of the lobes with three strong, nearly equal terminal hairs, the second 
joint much smaller than the first, and produced to form a stout process 
similar to those on the first joint, and also, like them, provided with three 
stout, subequal, terminal hairs ; the three last joints are very small, and 
furnished with four moderately long hairs. Posterior foot-jaws very small, 
three-jointed, armed with several appressed and short, stout, blunt- 
pointed, marginal spines, each of which is furnished with a fringe of short 
hairs arranged in a pectinate manner along the upper margin (fig. 27). 
All the swimming feet two-branched and nearly alike in both sexes. 
Both branches of the first pair of nearly equal length and three-jointed, 
the second, third, and fourth pairs have the outer branch three-jointed ; 
the inner branch, which is rather shorter, is two-jointed, the first joint 
of both branches of the first four pairs longer than any of the other joints ; 
the second joint of the basal part of each of the four pairs is very short, 
that of the first pair armed with a spine on the inner distal angle ; that 
of the second, third, and fourth pairs provided with a small setae insteau 
of a spine • the last joint of each branch of all the four pairs is furnished 
with one or two Tong plumose setae and one or two smaller hairs. Fifth 
pair of feet small, foliaceous, the produced inner portion of the basal 
joint rather smaller than the outer semicircular joint, and provided with 
two elongate, stout, plumose setae of unequal length. The exterior lobe 
of the same joint bears a very long, slender, curved hair at its apex. A 
long, stout, plumose hair springs from the inner distal angle of the outer 
semicircular joint, and three others from its outer margin. Abdomen 
four-jointed, the first and third segments longer than either of the other 
two. Caudal stylets short and furnished with a long slender terminal 
hair and several very small ones. 
Male. — The male differs little from the female except in the form of 
the anterior antennae which are distinctly geniculated and form powerful 
grasping organs (fig. 22). 
Habitat — Off St Monans, Firth of Forth. Obtained from dredged 
material from 14 fathoms water. 
* Referring to the comb-like arra ngement of the hairs on the_ marginal spines of 
the posterior foot-jaws. 
