1909.] 
N. Annandale : The Indian Cirripedia Pedunculata. 
77 
/,. anserifera ; not so broad at the base as long ; internal umbonal tooth on the left 
scutum only; a prominent external basal ridge on both. Carina usually pectinate 
dorsally, otherwise as in L. (fnserifera. 
Peduncle shorter than capitulum, somewhat compressed, bearing a distinct 
pale vertical ridge on the occludent surface and two similar parallel ridges on the 
dorsal surface, variable in colour, generally deep purple slightly paler both at the 
base and the apex. 
Lining membrane of the capitulum deep purple, not changing to orange on the 
sides of the aperture. Body lilac-purple; first, fifth and sixth cirri dark purple, the 
two latter brownish at the base; other cirri yellowish, with the anterior and posterior 
surfaces purple; anal appendages brown ; mouth parts coloured as m L. anserifera \ 
lateral appendages white. 
Cirri, etc. — Cirri much as in L. anserifera. Penis likewise. Lateral appendages 
only two on each side, one on the prosoma, the other at the base of the first cirrus, the 
latter being very long and delicate. Anal appendages as in L. anserifera. 
Mouth parts much like those of L . anserifera , but the inner angle of the mandible 
is more slender and has a much stouter fringe of bristles on the lower than on the 
upper margin. 
Closely as this form appears to resemble some specimens of L. anserifera exter- 
nally (c/. Pilsbry, Bull. U. S. Nat. Mus., No. 60, pi. viii, fig. 3) I assign it to L. anati- 
fera, mainly on the ground of the characters exhibited by its lateral appendages. It 
agrees as regards the markings on its terga and scuta with Darwin’s var. A of the latter 
species, but differs in other respects, notably as regards the ridges on the peduncle, 
which seem to be a constant and characteristic feature. How far it is identical with 
the specimens in Prof. Herdman’s collection from Ceylon I am not now in a position 
to say, as I only reserved one of these specimens, and that one an example in a bad 
state of preservation. At the time I examined Professor Herdman’s collections, 
moreover, I had not had the same experience as regards the Lepadidæ as that which 
the examination of large numbers of specimens has since given me. 
Subgenus D0.SIMA, Gray. 
The only species of this subgenus as yet known {L. fascicularis , Ellis and Solan- 
der) has not yet been taken in Indian seas but was obtained by the “ Siboga ’ ’ in the 
Malay Archipelago (whence it was also recorded by Darwin) , and therefore may occur 
in our waters also. There are no Oriental specimens in the collection. I quote Dar- 
win’s description for convenience of reference: — 
“Valves smooth, thin, transparent; carina rectangularly bent, with the lower 
part expanded into a flat oblong disk. Filaments five on each side ; segments 
of the three posterior cirri with triangular brushes of spines.’ ’ 
The peduncle is often surrounded by a globular mass of dead vesicular substance, 
and several individuals are not infrequently joined together by means of a mass of 
the kind secreted by them in common. 
