base that of H. crystallina. It was found, apparently
gregarious, under dead leaves in an islet in Trinity Bay.

Balea australis. Tab. 2 fig. 9. a, b.

Testa dextrorsa, rimata, subcylindracea, turrita, decollata, dense
capillaceo-costulata, corneo-lutea, maculis obscuris flavidis; sutura
impressa; anfractus 11, convexiusculi; apertura pyriformis, columella
triplicata, plica inferior maxima, conspicua, elevata, acuta, spiralis;
peristoma continuum, solutum. Long. 18--Diam. 4--Apert 4 mill. (Mus.
Brit. & Geol.)

This very remarkable shell, the first of its genus discovered in
Australia, differs from all its congeners. It has exactly the aspect of a
Clausilia, but the mouth is not furnished with a clausium. It was found
under stones at Port Molle.

Pupina grandis. Tab. 2 fig. 10. a, b, c, d.

Testa ovato-subcylindrica, superne laevigata, inferne rugulosa,
sordide-rufa; spira obtusa; anfractus 6, secundus tumidus, obliquus,
ultimus super aperturam planatus; apertura rotundata; peristoma laete
aurantiacum, rimatum, crassum, dorsaliter canaliculatum, infra
columellari, profunde sinuatum et in canali contorto excavatum; canalis
alter minutus ad partem superiorem et externam aperturae; callus
columellaris expansus, appressus. Long. 30, Diam. 15, Apert. 7 mill.
(Mus. Brit. & Geol.).

This, the giant of its genus, is perhaps the most remarkable land-shell
discovered during the voyage. It differs from all other Pupinae in having
an unpolished surface. It was found in the South-East Island of the
Louisiade Archipelago, under dead leaves chiefly about the roots of
trees.

Pupina thomsoni. Tab. 3 fig. 2. a, b.

Testa ovata, polita, nitidissima, translucens, hyalina, solidiuscula;
spira obtusa; anfractus 5, duo ultimi majores; apertura orbicularis;
peristoma album, crassum, solutum, canalibus duobus interruptum; canalis
superior ad partem superiorem et externam aperturae, inferior major,
basalis, marginibus disjunctis et in dorsum anfractus prolongatis. Long.
7 1/2, diam. 4 1/2, apert. 2 mill. (Mus. Brit.)

This remarkable and beautiful little Pupina is most nearly allied to the
P. bilinguis of Cape York. From that species (which is larger) it
differs, however, very materially, most especially in the position of the
inferior or basal canal of the aperture which is here placed like the
canal of a whelk, but in P. bilinguis is very small and placed high up,
cutting as it were the columella. The curious manner in which the mar