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 margins of the canals are prolonged on the back of the body whorl like parallel and somewhat diverging walls is also a singular feature of this species, which is dedicated to Dr. Thomson, surgeon of the Rattlesnake, and an excellent botanist.  It was found among dead leaves at the roots of trees in Fitzroy Island.

Helicina stanleyi.  Tab. 3 fig. 4. a, b.

Testa lenticularis, superne inferneque convexa, orbicularis, acute carinata, fusco-carnea, spiraliter striata; spira obtusa; anfractus 4 1/2 leviter convexiusculi; basis imperforata, centraliter laevigata, alba; apertura oblique sublunata, angulata; peristoma simplex, tenue.  Diam. maj. 6 1/2, min. 6, alt. 5 mill. (Mus.  Brit.)

Found on the leaves and trunks of trees and bushes (especially Scaevola koenigii) in the Duchateau Isles, Louisiade Archipelago.  Dedicated to the late Captain Owen Stanley, R.N.

Helicina louisiadensis.  Tab. 3 fig. 5. a, b.

Testa depresso-globosa, superne inferneque convexa, orbicularis, obsolete sub-angulata, pallide aurantiaca, sub lente spiraliter striata; spira obtusa; anfractus 4 1/2, vix convexiusculi; basis imperforata, centraliter sub-impressa; apertura lunata, inferne subangulata; peristoma incrassatum, aurantiacum, reflexum.  Diam. maj. 4 1/2, min. 4, alt. 3 mill. (Mus.  Brit.)

On Round Island in Coral Haven, Louisiade Archipelago, under stones.  This pretty little Helicina is nearly allied to some Philippine species.

Helicina gouldiana.  Tab. 3 fig. 3. a, b.

Testa depresso-globosa, superne sub-conica, orbicularis, obsolete subangulata, flava seu rufa, spiraliter striata; spira prominens; anfractus 5, planati; basis imperforata; apertura sub-lunata, inferne angulata; peristoma incrassatum, subreflexum, album.  Diam. maj. 6, min. 5 1/4, alt. 4 1/2 mill. (Mus.  Brit.)

Under the bark of Mimusops kaukii, in the Two Isles, on the North-East coast of Australia.  Dedicated to the indefatigable illustrator of Australian ornithology.

Ranella pulchella.  Tab. 3 fig. 6. a, b.