
HALE—AUSTRALIAN CUMACEA 421 
whole appendage resembles a dense brush; the flagellum is very short, not as long 
as last peduncular joint, and consists of seven segments. 
Mandible with nine or ten spines in the row. 
First peraeopod with basis two-thirds as long as rest of limb; carpus (which 
attains level of antennal angle) shorter than propodus, which is nearly twice as 
one as dactylus; the propodal setae are not very long and number only two or 
three. 
Second peraeopod with ischium distinet and with carpus distinctly longer 
than merus, and more than twice as long as propodus, which is almost two-thirds 
as long as daetylus. 
Third to fifth peraeopods with one very stout and one hristle-like carpal seta 
as in female (fig, 45, prp. 4). 
The first to fourth legs bear exopods, 
Uropod relatively longer than in female; peduncle nearly twice as long as 
telson and with four inner spines in distal half; endopod nearly two-thirds as 
long as peduncle, two-jointed, the first: segment three-fourths as long as second 
(my assumption that the two-jointed condition in the young male previously 
described was necessarily due to immaturity was too premature) ; there are two 
spines on inner edge of first joint, three on second, and. a terminal spine three- 
fourths length of ramus; exopod with a stout and long terminal spine, which 
is as long as ramus but is not distinctly marked off from it ; the ramus, not including 
spine in the length, is a little shorter than endopod, 
Length 2°8 mm, 
Genus Dicores nov. 
Like Gynadiastylis but (1) first peraeopod massive in both sexes, reaching 
for greater part of its length in front of carapace and with propodus as long as, 
or longer than, the basis; (2) exopods present on first four pairs of peraeopods 
of female. 
Genotype Dic brevidactylum Hale. 
In the genotype the thoracic exopods are all smail; in the two other species 
referred to the genus those of the first and second peraeopods are larger than the 
others but are still rather poorly developed. The basis of the second leg, like 
that of the first, is relatively short. The telson ig subeylindrical, with no distinct 
post-anal portion, its lateral margins are without serrations or lateral spines, and 
the terminal spines are rudimentary in both sexes, The third maxilliped is as in 
Gynodiastylis, with the ischium not dilated as it ig in Dio, 
KEY TO SPECIES OF DICOIDES 
1, Dactylus of frat pera@vpod longer than propodus .. aor areolata ap. NOV: 
Dactylus of first peraeopod less than half as long as propodua . - oy oe 
2. Rostral siphona yery long, at Jeast half length of earapace, Telaon much longer than sixth 
pleon somite oe ay os " : ro brevidactyla (Hale). 
Rostra! siphons short. Telaon much shorter than aixth pleon somite .- lett sp. nov. 
DIGOIDES AREOLATA sp. TOV. 
Ovigerous female. Integument lightly calcified but opaque. Carapace small, 
only one-fourth of total length of animal and one-third as long again as pedigerous 
somites together ; it is three-fourths as long again as deep, and barely wider than 
deep; on each side there is a shallow pit behind frontal lobe, and dorso-laterally — 
