38 JOURNAL OF SCIENCE. 
part of the abdomen. Noeye. Male smaller than the female; 
copulative organs large; spermatic glands long and narrow; the 
lateral filaments apparently not arranged in a verticillate 
manner. 
1. Macrocypris tumida, G. S. Brady.—Shell oblong, tumid, 
subovate; seen laterally the anterior extremity is broadly 
rounded, the posterior obliquely rounded, produced, and 
obscurely angular below; dorsal margin boldly and evenly 
arched, highest in the middle; ventral straight; height 
equal to half the length; seen from above the outline is 
broadly ovate, widest in the middle, and tapering very slightly 
towards the extremities, which are broadly rounded; the an- 
terior slightly mucronate, width equal to the height ; end view 
nearly circular. Shell-surface smooth. Length 1-16th inch. 
Also got in Royal Sound, Kerguellen Island, in 28 fathoms, 
FAMILY IJ.—CYTHERID. 
‘Genus Cythere (Miller). 
(Characters shortly given in Trans, N.Z. Inst., Vol. XI., p. 254.) 
1. Cythere murryana, G. S. Brady.—Carapace of the female, 
as seen from the side, oblong, subquadrangular, scarcely higher 
in front than behind, height equal to half the length, anterior 
extremity rounded, posterior narrower, subtruncated, and rather 
angular, the lower angle rounded: off; dorsal margin nearly 
straight, but towards the hinder end, suddenly depressed and 
excavated ; ventral margin sinuated in the middle, and turned 
upwards behind ; seen from above the outline is subovate, width 
nearly equal to the height, sides slightly curved and nearly 
parallel, extremities obtusely rounded ; end view subhexagonal, 
with obtusely rounded angles. Surface marked with numerous 
closely-set small angular excavations. Length 1-62nd inch. 
2. Cythere scabrocuneata, G. S Brady.—Shell compressed, 
ovate-oblong in its dorsal aspect, and having all its margins very 
uneven ; seen from the side, the shape of the female shell is that 
of a long triangle with the apex behind; all the margins, but 
especially the dorsal, denticulated or jagged, highest in front; 
the dorsal and ventral margins gently curved and converging 
equally to the pointed posterior extremity ; seen from above the 
outline is ovate, twice as long as broad, and widest near the 
middle, extremities broad and rounded off, lateral margins curved 
and converging rather more abruptly behind than in front. 
Shell-surface rough, with prominent nodules and scattered ill- 
defined ridges. Length 1-33rd inch. The shell of the male isa 
good deal narrower and longer. ; 
(Also found in Bass’ Straits, in 38-40 fathoms, and in the 
Inland Sea, Japan, in 15 fathoms.) 
Genus Cytheropteron (G. O. Sars). 
Valves mostly subrhomboidal, tumid, unequal, and different 
in shape, the right valve more or less overlapping the left on the 
