190Q.J 
N. Annandale : The Indian Cirripedia P edunculata . 
117 
Dichelaspis Stella, sp. nov. 
Minute, transparent, the valves occupying a small part of the area of the capi- 
tuluin. 
Capitulum laterally compressed, with the occludent margin almost straight and 
vertical and the carinal margin strongly arched ; with four 
delicate, brittle valves ; a considerable area of apparently reti- 
culate structure surrounding the umbo of each valve. Carina 
linear, arched, extending more than half way up the capitulum, 
forked at the base, the two branches of which are variable in 
length, widely separated, almost parallel to one another and, 
in another plane, to the basal branch of the scutum. Ter gum 
small, in the shape of a four-rayed star, the uppermost ray of 
which is usually shorter than the other three, while the lowest 
is longer. Scutum consisting of two sublinear branches which 
almost form a right angle, one being horizontal, the other ver- 
tical ; the vertical branch considerably longer and broader than 
the other. 
Feduncee naked, generally longer than the ca^jitulum, 
smooth, slender, very transparent. 
Cirri, etc. — First cirrus narrowly separated from second, 
with both rami slender ; the anterior ramus slightly broader 
than the posterior, and shorter by one joint ; the distal joint of 
each bearing at its tip a circle of long, stout spines. Remaining cirri long and slender, 
bearing numerous very long, .slender hairs on the anterior margin of each joint and at 
the tip of the di.stal joint. Anal appendages short, slender, barely reaching the distal 
end of the basal joint of the sixth cirrus, bearing at their tip a bunch of long, fine 
hairs, some of which are several times as long as the appendage ; the ])osterior margin 
entirely bare. Penis long and slender, apparently naked. 
Mouth parts. — Lahrum not bullate, with a row of minute, triangular, equal 
teeth round its dorsal margin. Palp short, somewhat claw-shaped, bearing a fine 
pencil of long hairs at its tip. Outer maxilla short and broad. Maxilla with a 
somewhat narrow and shallow incisure about the middle of its biting edge ; external 
to the incisure three stout spines, of which the outermost is the stoutest ; internal to 
it about half-a-dozen more. 
This is a very small species, the capitulum in all that I have seen being less than 
2 mm. in length. There is only one set of specimens in the Museum, however, and it 
consists only of ten individuals, all of which were found on the gills of a single crab. 
Possibly they are immature, for none of them contain eggs. The species is evidently 
rare. 
Dichelaspis rhinoceros , sp. nov. 
Minute, transparent, with five translucent, brittle valves ; the scutum with three 
branches ; the membrane thin. 
Fig. 10. — D. stella, 
X c. 27, with the tergum 
of a second specimen. 
