our appears as a white band on the body whorl marking its most
prominent portion just below the centre. The sinuation of the outer lip
and impression of the whorl behind the peristome, give a slightly ringent
aspect to the mouth. It is very distinct from any known species; its
affinities are more with Australian than with Philippine forms. It was
taken on a tree in the South-East Island of the Louisiade Archipelago.

Helix yulei. Tab. n. fig. 6. a, b.

Testa profunde umbilicata, depresso-globosa, solida, striata, sub
epidermide fulvo-alba, fasciis castaneis cingulata; spira sub-depressa,
obtusa; anfractus 6 convexiusculi; apertura subcircularis; peristoma
nigrum, expansum, margine basali reflexo, columellari dilatato, umbilicum
subtegente. Diam. maj. 37, min. 27, alt. 25, mill. (Mus. Brit.)

This handsome species is of a rich fulvous hue, with dark chestnut bands
and a deep chestnut umbilicus, partly covered by the reflexion of the
nearly black lip. It is allied to the H. incei, a well known north-east
Australian species. It was found in hollow trees, and under logs and
stones at Port Molle, in the same region.

Helix macgillivrayi. Tab. 3 fig. 1.

Testa imperforata, trochiformis, carinata, striis minutis spiralibus
ornata, pallide fusco-carnea, punctis nigris albo-occellatis sparsa;
spira conica; anfractus 6 planati, ultimus carinatus, basi subplanatus;
apertura oblique oblonga, intus brunnea, margine externo bisinuato;
peristoma album, incrassatum, infra reflexum; columella basi rufescens.
Diam. maj. 23, min. 19, alt. 21, mill. (Mus. Brit. and Geol.)

Of all Australian Helices, this is perhaps the most curious. Its outline
and aspect are singularly like those of a Trochus of the Ziziphinus
group. The colour is also very singular, being a yellowish flesh hue
deepening on the base to rich brownish-yellow, and speckled irregularly
with minute black dots which are areolated with white, the white ring
being largest on the side towards the mouth. The fine striae that
encircle the body are also very curious. The outer lip of the aperture
seems as if it had been dented in two places. Behind the white thickened
peristome, intemaily is a dark brown band, which is seen through the
shell as a dark blackish green stripe. The edge of the outer lip declines
to join the body whorl a little below the keel. It was found on trunks
and branches of trees in the Frankland Isles.

Helix dunkiensis. Tab. 2 fig. 7. a, b.

Testa umbili