Ceylon collections.]

[Footnote 50: C. plicaria of _Lamarck_, and C. coronulata of _Sowerby_,
are also said to be found in Ceylon.]

[Footnote 51: As Purpura.]

[Footnote 52: N. suturalis, _Reeve_ (as of _Lam_.), is met with in mixed
Ceylon collections.]

[Footnote 53: E. areolata _Lam_.]

[Footnote 54: E. spirata, _Lam_. not _Linn_.]

[Footnote 55: B Belangeri, _Kiener_.]

[Footnote 56: As Turricula L.]

[Footnote 57: 0. utriculus, _Dillwyn_.]

[Footnote 58: C. planorbis, _Born_; C, vulpinus, _Lam_.]

[Footnote 59: Conus ermineus, _Born_, in part.]

A conclusion not unworthy of observation may be deduced from this
catalogue; namely, that Ceylon was the unknown, and hence
unacknowledged, source of almost every extra-European shell which has
been described by Linnaeus without a recorded habitat. This fact gives to
Ceylon specimens an importance which can only be appreciated by
collectors and the students of Mollusca.

2 RADIATA.

The eastern seas are profusely stocked with radiated animals, but it is
to be regretted that they have as yet received but little attention from
English naturalists. Dr. Kelaart has, however, devoted himself to the
investigation of some of the Singhalese species, and has given the
fruits of his discoveries in the Journal of the Ceylon Branch of the
Asiatic Society for 1856-8. Our information respecting the radiata on
the confines of the island is, therefore, very scanty; with the
exception of the genera[1] examined by him. Hence the notice of this
extensive class of animals must be limited to indicating a few of those
which exhibit striking peculiarities, or which admit of the most common
observation.

[Footnote 1: Actinia, 9 sp.: Anthea, 4 sp.; Actinodendron, 3 sp.;
Dioscosoma, 1 sp.; Peechea, 1 sp.; Zoanthura, 1 sp.]

_Star Fish._--Very large species of _Ophiuridae_ are to be met with at
Trincomalie, crawling busily about, and insinuating their long
serpentine arms into the irregularities and perforations in the rocks.
To these they attach themselves with such a firm grasp, especially when
they perceive that they have attracted attention, that it is next to
impossible to procure unmutilated specimens without previously depriving
them of life, or at least modifying their muscular tenacity. The upper
surface is of a dark purple colour, and coarsely spined; the arms of the
largest specimens are more than a foot in length, and very fragile.

The star fishes, with immovable ray