of the Fishery Board for Scotland. 245 
sharp-pointed teeth, decreasing in size from the external edge. The basal 
- part of the mandible-palp is comparatively large, becoming dilated out- 
wardly, and bearing a few small marginal hairs. ; Apical joint elongate, 
narrow, with two marginal and four terminal sete; the secondary marginal 
joint is very small (fie. 7). Posterior foot-jaws slender, the second joint 
elongate, end joint very small, terminal claw very slender (fig. 8); “ihe 
first pair of thoracic feet somewhat like those of Tetragomceps bradyt, 
but the inner branches are three-jointed, the first very long, the last two 
short. A small seta springs from near the distal end of the inner margin 
of the inner branches, and the third joint bears two moderately long and 
somewhat curved sete at the apex. The outer branches are three-jointed, 
and do not reach the end of the first joint of the inner branches (fig. 9). 
Inner branches of:the second, third, and fourth pairs short, and two-jointed ; 
outer branches three-jointed, elongate, and slender (fig. 10). Fifth pair 
two-jointed. Basal joint short, broad, and somewhat produced exteriorly 
to an angular apex armed with two short spines; while two small sete 
spring from the outer margin. Secondary joint very large and foliaceous, 
sub-quadrate in form, and one and a half times longer than broad, and 
bearing one small seta near the middle of the inner margin, and three 
short, stout, spiniform, and two small sete on the obliquely truncate apex 
(fig. 11). Caudal stylets comparatively long and narrow, and about equal 
in length to the last abdominal segment, and furnished with five terminal 
sete, two of them being stout and spiniiorm, the other three slender. One 
of the spiniform setz is short, and springs from the outer edge of the 
stylet ; the other is elongate, and forms the third from the outside. 
Habitat.—Oti St Monans, Firth of Forth. Rather scarce. 
Remarks.—This species closely resembles Tetragoniceps bradyi in 
general appearance as well as in a few anatomical details, but there are 
important differences that may require its removal from the genus in 
which it is provisionally placed. ‘wo very important differences are 
observed in the structure of the first and fifth pairs of thoracic feet. In 
the first pair the inner branches are three-jointed, and the fifth pair are 
two-branched. These two characters indicate a considerable divergence 
from the typical Tetragoniceps ; but I prefer to leave it in that genus in 
the meantime, pending a further study of the species. 
Genus Laophonte, Philippi (1840). 
Laophonte depressa, sp. n.' (Pl. VI. figs. 24-31; Pl VII. figs. 1-3.) 
Description.—Female. Length, ‘84 mm. (,th of aninch). Body elon 
gate, depressed sub-cylindrical. Breadth across the thorax equal to fully one- 
fourth of the length. The postero-lateral angles of the second, third, and 
fourth abdominal segments produced and rounded. Rostrum broad, with 
the apex rounded. Anterior antenne sparingly setiferous, shorter than 
the first cephalo-thoracic segment, and composed of seven joints; the 
third joint is longer than any of the others, the fourth and fifth are 
small. The proportional lengths of the joints are shown by the 
formula :— 
“Se ae cae Se ee eee 
Posterior antenne robust ; the end joint is about equal in length to the 
preceding one, and bears a few stout slightly curved spines on the 
distal half of ‘the upper margin and apex. A small secondary branch 
with four terminal plumose sete springs from the middle of the first 
joint (fig. 2, Pl. VIL.). Mandibles well-developed. The mandible-palp 
is comparatively small, and consists of a narrow elongate joint, with one 
