d4 PROF. G. O. SARS ON THE COPEFODA [Jan, 12, 
short distance fiom the end of the ramus; dorsal seta issuing 
about in the middle, apical sete comparatively short. Anterior 
antenne (see fig. 73) unusually small, though composed of the 
normal number of joints. First pair of legs (fig. 74) with the 
outer ramus of normal structure; mner ramus almost twice as 
long, but composed of only two joints of about equal length, 
the distal one linear in form and scarcely at all incurved, carrying 
on the tip a slender claw-like spine and a single still more slender 
seta. Natatory legs (fig. 75) with the seta at the inner corner of 
the terminal joimt of outer ramus very small and rudimentary ; 
[st joint of inner ramus in 2nd pair of legs without any seta 
inside. Last pair of legs (fig. 76) with the distal joint com- 
paratively short, rounded oval in form, marginal sete of the 
usual appearance ; inner expansion of proximal joint extending 
about as far as the distal joint. 
Length of adult female 0°46 mm. 
Remarks.—This species is at once distinguished by the 
unusually small anterior antenne, a character which has given 
vise to the specific name here proposed. It also can be distin- 
euished by the anomalous structure of the Ist pair of legs. 
Occurrence.—Of this form also only a solitary specimen has 
come to my notice, a fully grown female with well-developed 
ovaria, but without ovisacs. It was found in the same sample as 
the preceding species. 
11. SCHIZOPERA SPINULOSA, Sp. n. (Plate XII. figs. 78-81.) 
Specific Characters.—Frmaur. Body (fig. 78) not particularly 
slender, with the posterior division much shorter than the 
anterior and slightly tapering behind. Rostrum of the usual 
shape. Last caudal segment somewhat shorter than the preceding 
one, and exhibiting above, on each side of the anal area, an 
oblique row of about five small spinules; anal opercle perfectly 
smooth. Caudal rami (fig. 81) broadly oval in form and _ pro- 
nouncedly lamellar ; inner edge evenly curved and armed with a 
row of slender spinules continued across the end of the ramus 
above the insertion of the apical sete; spine of outer edge rather 
strong and attached at a short distance from the end; dorsai seta 
issuing at about the middle. Anterior antennz comparatively 
slender and of quite normal structure. First pair of legs (fig. 79) 
somewhat resembling in structure those in S. wnagulata, the inner 
ramus being composed of only two very unequal joints; the Ist 
long and slender, considerably exceeding in length the outer 
ramus; the 2nd quite short and armed on the tip with a strong 
claw and a comparatively short seta accompanied by a small hair. 
Natatory legs about as in the four preceding species. Last pair 
ot legs (fig. 80) resembling in shape those in S. minuticornis, 
though wanting one of the small marginal spines on the distal 
joint. 
Length of adult female 0°43 mm. 
