ii, 1837, p. 262.

On fuci, Fayal, Azores.

The specimens, to which these names have been given by the above two
authors, are described as small, and the _A. villosa_ was suspected by
Brugiere to be young. The _A. hirsuta_ is said by Conrad to have the
valves minutely striated, granulated, and covered by a strong hirsute
epidermis; the scuta, compared with the other valves, are very large;
the entire length of this specimen was a quarter of an inch. The _A.
villosa_ is described as having smooth valves, and apparently the
peduncle alone is hirsute. Now, in young individuals of _Lepas
australis_, the peduncle is hairy, whilst in full-grown specimens it is
quite smooth. Again, in some varieties of _L. fascicularis_, the thorax,
prosoma, and cirri are hirsute, whereas they are generally quite smooth;
hence I am inclined to suspect that _A. villosa_ is the young, in a
state of variation, of _L. anatifera_; and that _A. hirsuta_ bears a
similar relation to _L. anserifera_. In Lamarck's 'Animaux sans
Vertebres,' _Pollicipes villosus_ of Sowerby is quite incorrectly given
as a synonym to the above _A. villosa_.

[69] The _Anatifa hirsuta_ of Quoy and Gaimard is the _Ibla
quadrivalvis_ of this work.

ANATIFA ELONGATA. _Quoy_ et _Gaimard_. Voyage de l'Astrolabe, Pl.
xciii, fig. 6.

This, I think, is certainly a distinct and new species, but I am unable
to decide whether to place it in Lepas or Paecilasma. It is briefly
described and pretty well figured in the above work. It was procured at
New Zealand, but it is not stated to what object it was attached. The
capitulum is much elongated, and one inch in length; the peduncle is
from six to eight lines long. The carina is said to be very narrow; it
is not stated whether it terminates downwards in a fork or disc; judging
from the figure, it extends some way up between the terga, the basal
ends of which are bluntly pointed. The scuta are almost quadrilateral.
The peduncle is short, yellow, and tuberculated. The general appearance
of the drawing makes me suspect that it is a Paecilasma.

CLYPTRA. _Leach._ Zoological Journal, vol. ii, p. 208, July,
1825.

Leach has most briefly characterised a specimen in Savigny's Museum,
from the Red Sea, under the above name of _Clyptra_. It has only four
valves, and its peduncle is smooth; by the latter character it is
distinguished from Ibla. Apparently this is a distinct and new genus.

* *