260 
Part III. — Tenth Annual Report 
Cylindropsyllus minor, (PI. XL figs. 17-24). 
Female. — la the female the body is cylindrical and elongate. Length, 
exclusive of tail setae, 1 mm., the first thoracic segment nearly as long 
as the next three together, rostrum short with a rounded apex. Anterior 
antennae about as long as the first thoracic segment, seven-jointed ; the 
comparative length of the joints are as shown in the formula 
7 • 18 • 9 • 4 • 5 ' 4 1 8 
1. 2.3.4.5.6.7* 
Sparingly setiferous. An olfactory filament springs from the end of the 
fourth joint, which is produced to form a base for the filament. The 
posterior antennae, mandibles, maxillae, and anterior foot-jaws as in Tetra- 
goniceps incertus. Posterior foot-jaw two-jointed and armed with a long, 
stout, terminal claw which is ciliate on the inner margin of the distal half. 
A spine springs from the end of the first joint and projects forward so as to 
be opposed to the extremity of the terminal claw. The outer branch of the 
first four pairs of swimming feet three-jointed, the inner branch of the first 
and fourth pairs two-jointed, of the second and third one-jointed, the inner 
and outer branches of first pair nearly equal, but the inner rather longer, 
sparingly setiferous. The one-jointed inner branch of the second and 
third pairs shorter than the first joint of the outer branch, and terminating 
in a short stout spine ; a moderately long slender hair springs from near 
the middle of the one-jointed inner branch of the third pair. The outer 
branch of the fourth pair is nearly twice as long as that of any of the 
preceding pairs. The two first joints are about equal in length ; the last 
is rather shorter, and furnished with one very short and three long setae. 
The inner branch, which is two-jointed, is scarcely longer than the first 
joint of the outer branch, and provided with a short terminal plumose spine 
or stout setae. Fifth pair foliaceous, small, one-branched, the posterior 
margin armed with six plain setae, and, exteriorly, with a stout spine. 
Abdomen four-jointed, first segment rather longer than any of the other 
three. Caudal stylets about as long as the last abdominal segment, 
slightly divergent, and bearing a lanceolate spinif orm terminal process and 
a few very small hairs. Ovisacs two, each with four ova placed end to 
end as shown in the figure. 
(?) Licliomolgus littoralis* n. sp. (PI. X. figs. 1-9). 
Male. — Length about 1'12 mm. (exclusive of tail setae). In form some- 
what like Licliomolgus arenicolus. Anterior antennae short, seven-jointed, 
the proportional length of the joints as shown by the formula t 
16 • 24 • 12 • 23 • 15 • 18 • 16 
1- 2- 3- 4- 5- 6* 7* 
All the joints more or less setiferous ; the second joint is furnished with a 
number of moderately short, and two long setae. Posterior antennae stout, 
four-jointed, the length of the joints gradually decreasing, the last about 
as broad as long, quadrangular, and bearing about six long, unequal, and 
plain terminal hairs and one plumose seta, the exterior margin of the 
second and third joints ciliated. Two spines, one of which is stout and 
strongly curved, and two setae, spring from the exterior distal angle of the 
third joint as shown in the figure. There is no secondary ap- 
pendage to the posterior antennae. Mandible stout, consisting of a broad 
* Of or belonging to the shore. 
t When first examined the three last joints of the anterior antennse were observed 
to be nearly equal in length, but the last one became detached before the joints were 
.measured. The length stated, though closely approximate, may therefore not lie quite 
correct. 
