1909. J 
N. Annandale : The Indian Cirripedia P cdnncidata . 
119 
Dichelaspis cor, Aurivillius. 
D. cor, Aurivillius, “ Stud. ü. Cirr,” Kongl. Sv. Vd. Akad. Handl., xxvi, No. 7, 
p. 20, figs. I, 2 (1894). 
D. maindroni, Gruvel, Mono. Arch Mus. Paris (4), iv, p. 282, pl. iv, figs. 21 — 27, 
pl. i, figs. 15, 16 (1902). 
D. coutierei, id., ibid., p. 289, pl. iv, figs. 28 — 32; Annandale, Illustr. Zool. 
'‘Investigator,'' Crust. Ent., pl. iv, figs. 4, 5 (1908). 
Capitulum heart-shaped, pointed above, gradually rounded at the base, with or 
without the lines of growth marked on the surface, transparent or translucent ; the 
surface often covered with minute, chitinous points; the membrane thick. Valves 
three, sometimes five, narrow but stout. No definite tergum, which is sometimes 
represented, however, by an amorphous chitinous plate. Carina narrow, usually 
curved, with transverse basal branches, which are turned upwards towards the scutum ; 
the inner part of the lateral faces usually concave. Scutum with two branches or 
segments, which are sometimes quite distinct from one another ; the occludent branch 
or segment narrow, close to the occludent margin of the capitulum, sometimes expan- 
ded and truncated at the tip, sometimes pointed, extending along the occludent margin 
of the capitulum for the greater part of the length of the latter; basal branch or 
segment slanting inwards and upwards, narrow and pointed or expanded at the 
tip and truncated, its base more or less triangular. 
Peduncle usually longer than the capitulum, with or without chitinous points, 
not or barely annulated. 
Cirri, etc. — First pair of cirri close to the second or separated from it, very short 
as a rule, but variable in this respect. All the cirri stout and rather short. The rami 
of the first pair subequal, rather broad, barely longer than the pedicel, the joints 
profusely covered with stout hairs. The posterior bunches of hairs well developed on 
the posterior cirri. Anal appendages variable in length and armature, laterally 
compressed, rounded at the apex, bearing a dense apical fringe of hairs, which 
extends down the posterior margin to a different degree in different individuals. 
Penis usually very stout, pointed, with the apex retroverted. In some individuals, 
however, which are perhaps immature, it is slender, and straight at the extremity. 
Mouth parts. — Labrum prominent but not bullate, without a row of chitinous 
teeth above but minutely ornamented with chitinous points in some individuals. 
Palp rather stout, bluntly pointed, bearing on the dorsal surface at the tip a fringe 
of stout hairs and along the whole of the dorsal margin a more sparse fringe of similar 
hairs. Mandible with five or six teeth (including the inner angle); all the teeth short 
and proportionately broad at the base ; the first not much larger than and by no 
means widely separated from the second; the second, third, fourth and fifth sub- 
equal ; the extra teeth, when present, smaller than the others, situated at the base 
of the fifth ; a small projection also present at the base of the fourth ; the greater 
part of the mandible covered with short, fine hairs. Maxilla without a definite exca- 
vation although there is sometimes a very faint concavity between the first three 
