MR. LUBBOCK ON SOME FRESHWATER ENTOMOSTRACA. 199 
one the smallest. The shortness, however, of all the appendages in the young of this 
species makes it rather difficult to ascertain their form and the arrangement of the hairs. 
Between the caudal setze is a fringe of short hairs. 
This, which is one of the smallest species belonging to the genus Cyclops, was described 
by S. Fischer in the Bull. de la Soc. des Nat. de Moscou, 1851-52, p. 423. It appears to 
be a hardy species, and lives well in confinement. 
Kent. 
Podophrya Cyclopum does not appear to be very common in Kent; but I have found 
specimens of it on this species. 
CYCLOPS CORONATUS, Claus, Wiegmann’s Arch. 1857, p. 29. Antenne primi paris 
septendecim-articulate, ultimo annulo crista preedite serrata, corpus anticum 
(cephalothoracem) minime superantes: antenn:e secundi paris magnopere elongate ; 
annulus earum secundus brevis, margine inferiore convexus; ciliatus tertius tenuis, 
cylindricus, quartum longitudine fere superans. Long. fem. (inclusis setis apicalibus 
quatuor) 3-5 mm. 
In the drawing of the anterior antenna, Claus represents the hairs much too uniform 
in length. Thus the fourth segment bears two long sete, and the fourteenth one long seta, 
which are erroneously figured of the same size as the other setze. The two posterior sub- 
apical setze also are longer than the segments to which they respectively belong. At the 
centre of the terminal segment is a small seta, which Claus has wholly omitted; and he 
has also left out a good many of the setze on the basal segments. The eighth, ninth, 
tenth, twelfth, thirteenth, and fourteenth segments have a row of spines at their anterior 
ends, as described by Claus. 
The second pair of antennze is correctly figured by Claus, except that the spine on the 
posterior side of the basal segment is, as usual, long and setose. agit 
The upper lip has fifteen teeth, counting the two large ones as external, and omitting 
one or two slight eminences on the outer side of the large teeth. Three or four of the 
central ones projected very slightly. ; ; 
The inner maxillary foot is as in Claus’s figure, except that the terminal seta 8 much 
too small. j 
The outer maxillary foot also is as in Claus's figure, except that the small setose spine 
on the finger-like projection of the third segment is inserted on the outer side of the great 
Spine. Both of the great terminal spines of the same segment are spinose on one side ; 
and close to their base is inserted a short hair. The terminal segment has two great 
Spines, one smaller one, and two hairs; but there is no hair at the base of the segment, as 
in Claus's figure. 
The. sarees of the posterior legs bears a long spine, plumose xx free end. 
The three spines by which the second segment is terminated are in Claus s figure equal 
and similar to one another. This, however, is not the case in my specimens. The two 
Outer setæ are plumose, and the central one is nearly twice as long as the other. The 
inner hair is flat, somewhat lanceolate, and provided with short lateral appendages. This 
hair is as broad at the base as the central seta, but is much shorter. s 
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