246 Part III —Twelfth Annual Report 
marginal and one apical plumose hair, and is provided with a 
nearly obsolete subterminal second joint supporting three plumose sete 
(fig. 25, Pl. VI.). The joints of the posterior foot-jaws are comparatively 
elongate and narrow. ‘The terminal claw is strong, and slightly curved 
(fig. 26, Pl. VI.). The two-jointed inner branches of the first pair of 
thoracic feet are stout, and armed with a powerful terminal claw. The 
outer branches are small and three-jointed, and only extend to about the 
middle of the elongate first joint of the inner branches (fig. 27, Pl. VI.). 
The second, third, and fourth pairs are slender. The inner branches are 
short and two-jointed, with the first joint small. Both branches are 
furnished with long plumose sete (fig. 28, P]. VL.). The structure of the 
fifth pair is similar to those of Laophonte thoracica, Boeck ; but the 
secondary joint is broader, the breadth being equal to about "twofifths, 
of the length, and with the distal half sub-conical in outline (fig-. 30 
Pleas), “Caudal stylets short, about equal to half the length of the 
last abdominal segment. 
Male.—-In the male the fourth joint of the anterior antenne is 
dilated and sub-rotund. The terminal joints are narrow, and form a claw- 
like appendage ; and, being hinged to the large fourtb joint, coustitute 
an efficient grasping organ (fig. 2, Pl. VIi.). The third pair of thoracic 
feet are moderately stout ; the inner branches appear to consist of three 
sub-equal joints that reach to about the end of the second joint of the 
outer brauches. An irregularly-curved spiniform appendage, extending 
considerably beyond the apex of the last joint, springs from the end of 
the second joint, as shown in the figure (fig. 29, Pl. VI.). The basal 
joints of the fifth pair are not produced exteriorly, but the anterior 
angle is furnished with two plumose sete. The secondary joint is shorter 
than that of the female fifth feet, and there is proximally a lobe-like 
marginal process, furnished with a terminal plumose seta. On the conical 
end of the secondary joint there are two stout setz on the inner and two 
on the outer margin, and an elongate apical seta. The sixth appendage 
is small, narrow, and provided with three terminal plumose setz (figs. 
31, BLAV AD): 
Hubitat.—Off St Monans and also off Musselburgh. Rather scarce. 
Remarks.—This species resembles Laophonte thoracica, Boeck, in some 
of its characters, as, for example, in the form of the thoracic feet ; but 
the structure of the anterior antennz and posterior fovt-jaws, and the 
short caudal stylets, distinguish it at a glance from that species. 
Laophonte denticornis, sp.n. (Pl. VII. figs. 13-23.) 
Description.—Female. Length, 86 mm. (,'5th of an inch). Body seen 
from above, slender, sub-cylindrical ; the first cephalo-thoracic segment 
nearly equal to the combined length of the next four. The posterolateral 
angles of the second, third, and fourth abdominal segments are slightly | 
produced and rounded; while the third and fourth segments are proxi- 
mally narrower than they are distally. Forehead sub-triangular. An- 
terior antenne six-jointed, stout, sparingly setiferous, and about equal in 
length to the first cephalo-thoracic segment. The first three joints are 
of moderate length and sub-equal, the fourth and fifth are small. The 
second joint is armed on the under side with a stout conical tooth nearly 
at right angles to the joint (fig, 14). The proportional lengths of the 
joints are shown by the formula :— 
1S. ia. VO.g 0 iad Seo makae 
Ds ate 24 tenet Oman 
The fourth joint is produced on the upper side to form the base of a 
moderately long filament. The basal joint of the posterior antenne is 
