256 Part TIE —Tenth Annual Report 
is prominent and has the apex goriewhal trilobed ; the rd 
projects forward considerably beyond the lateral ones. 
It has been obtained from various parts of Great Britain. The followir oe 
are some of the localities—Off the Island of Cumbrae ; at Portincross, 
Ayrshire ; Mulroy Loch, Donegal (G. S. Brady); Oban (A. M. N orman) ae 
East Loch Tarbert, Loch Fyne (Mihi). Laophonte horrida, so far as I 
have heen able to know its habits, is no swimmer, but appears to i 
the muddy roots of weed and zoophytes, among which it crawls and finds” 
food and shelter ; it is usually more or less coated with mud. 
Laophonte inopinata,* n, sp. (provisional name). (PI. XI. figs. 1123 a 
Female.—Length, exclusive of caudal sete, ‘5 mm. Viewed dorsally, 
the body is elongate and becoming gradually narrower posteriorly, coui- 
posed of ten segments, the first sesment about as long as the next three — 
together, and furnished with a few small: spinous setze at the antero-_ 3 
lateral angles. Rostrum short, obtuse. Anterior antenne short and stout, 
six-jointed, the first three joints large, subequal, the fourth and fifth small. _ 
The proportional length of the joints are as in the annexed formula 
[fees Rates pee ie age ie P e 
1328-2256 , : 
The fourth joint produced on one side to form the hase of an elongate 
olfactory filament. Posterior antenne stout, three-jointed, with four long 
geniculated terminal setee and one short curved terminal spine. The 
margin of the last joint is also fringed with short hairs and provided 
with a spine near the distal end. The secondary branch, which springs 
from near the middle of the second segment of the primary branch, is 
small, one-jointed, furnished with one marginal and three short, plumose 
terminal setgz. Anterior foot-jaw small, two-jointed, armed with a 
terminal clawed spine and two elongate marginal lobes. Posterior foot- 
jaw two-jointed, and bearing a long terminal claw. The first pair of 
swimming feet nearly as in Z. similis, The second, third, and fourth 
pairs nearly alike, moderately stout; fifth pair small. The basal joint is 
furnished with several small marginal hairs, a moderately long plumose 
terminal hair, and three subterminal, spinous sete toothed near the 
extremity ; the second joint small and provided with one long and four 
short terminal hairs. Caudal stylets short, each with a long curved, 
spreading terminal seta, beset for two-thirds of its length with numerous 
_wooly-like curled filaments; a short terminal seta -plumose on one 
side ; and a few very short hairs. The integument is thickly covered 
with minute hairs, and the posterior margins of the body segments are, 
besides being fringed with cilia, furnished ‘witha number of small hairs — 
placed at regular ‘intervals along the margin of each segment as shown i In 
the enlarged “figure. 
Male.—The chief difference between the female and male is in the 
form of the anterior antenne, which in the latter are distinctly hinged, 
and constitute powerful grasping organs. ; 
Habitat.— Washed from a, large seaweed root brought up in the trawl 
net a few miles west of May Island. Several ¢ and ? specimens were - Pee, 
obtained; some of the latter carried ovisacs. The long, spreading, and — 
neatly curved caudal sete serve to distinguish this species at a glance, — 
and especially so when examined under the microscope ; the wooly-like — = ee 
curled filaments with which they are covered give them a very striking ev 
character. 
Se 
* Inopinata, unexpected. 
