, paene absconditis: longitudine tota ad quartam
unciae partem._

Orifice not protuberant, one third of the length of the capitulum:
scuta horny, almost hidden. Total length quarter of an inch.

Outer maxillae, with the spines in front continuous; posterior cirri,
with several long spines arranged in a transverse row on each segment;
caudal appendages longer than the pedicels of the sixth cirrus.

Sicily; attached to a Cidaris:[43] island of Capri (_A. Costa_).

[43] I am greatly indebted to Professor J. Mueller, of Berlin, for
kindly lending me specimens.

Capitulum oval, blending insensibly into the peduncle; moderately
flattened; composed of thin structureless membrane, with the exception
of two horny, almost quite hidden scuta. Orifice situated near the
summit, and in a line, which is oblique to the longitudinal axis of the
peduncle; much wrinkled; barely one third of the length of the whole
capitulum.

The _Scuta_, consist of yellowish, transparent, horny, laminated
chitine, without any calcareous matter; externally covered by the common
integument of the capitulum; these valves are placed very near to each
other, close under the orifice, and therefore high up on the capitulum;
the membrane between them is smooth and unwrinkled; they are formed of
two rather acuminated lobes, joining each other at above a right angle;
one lobe (the longer one) stretching nearly transversely across the
capitulum, the other running down parallel to its rostral margin: in
shape and position they resemble the scuta of _Conchoderma aurita_; and
if another lobe had been developed it would have run along the orifice,
and then these valves would have resembled the scuta of _Conchoderma
virgata_. In a specimen with a capitulum 2/10ths of an inch long, the
scuta from point to point were 1/20th of an inch in length.

_Peduncle_, much wrinkled, about one third in diameter of the capitulum,
and shorter than it; at the base it is generally expanded into two or
three finger-like projections. _Length_ of the largest specimen, about
one fourth of an inch. _Colour_, according to A. Costa in the work above
cited, "rufo-flava vittata;" but after spirits the whole becomes
uniformly yellowish.

_Filamentary Appendages_, situated beneath the basal articulation of the
first cirrus, on the posterior edge of the usual enlargement;
acuminated, about two thirds of the length of the shorter ramus of the
first cirrus.

_Prosoma_ well develo