Narrative of the Voyage of H.M.S. Rattlesnake Volume Ii Part 44

5. V. strangei, Pfeiffer.

Locality: Under logs in the brushes at Brisbane Water, New South Wales (Macgillivray).

6. V. verreauxii, Pfeiffer.

Locality: Australia (Verreaux).

SUCCINEA.

1. S. australis, Ferussac. (Hist. t. 11, f. 11).

Locality: Australian Isles. Van Diemen's Land (Quoy and Gaimard). Mount Eliza, Swan River (Priess, apud Menke).

HELICINA.

1. H. gouldiana, Forbes. (Voyage Ratt1esnake, t. 3, f. 3).

Locality: In the Two Isles on the North-East coast of Australia (Macgillivray).

1. P. bilinguis, Pfeiffer.

Locality: About roots of trees among leaves at Cape York (Macgillivray).

Blackwood Bay, and Restoration Island (Brit. Mus.)

2. P. thomsoni, Forbes. (Voyage Rattlesnake, t. 3, f. 2).

Locality: Fitzroy Island (Macgillivray).

CYCLOSTOMA.

1. C. australe, Gray.

Locality: New Holland.

2. C. vitreum, Less. (Sowerby, Thes. Conch. t. 30, f. 252).

Locality: Dunk Island, Frankland Isles, Green Island, on leaves and trunks of trees (Macgillivray). New Ireland (Hinds).

3. C. bilabre, Menke.

Locality: East coast of New Holland (Lehmann).

4. C. fimbriatum, Lamarck. (Delessert Receuil. t. 29, f. 12).

Locality: New Holland.

5. C. multilabris, Lamarck. (Delessert Receuil. t. 29, f. 14).

Locality: New Holland. Sowerby considers this to be a monstrosity (of what?)

3. DESCRIPTIONS OF S0ME NEW SPECIES OF Sh.e.l.lS, DISCOVERED DURING THE VOYAGE OF THE RATTLESNAKE.

Relu brumeriensis. Tab. 2 fig. 1. a, b.

Testa imperforata, globosa-conoidea, cra.s.sa, laevigata (sub lente granulato-striata) alba, ad aperturam nigra; spira obtusa, conoidea; anfractus 4, convexiusculi, rapide accrescentes, ultimus basi subcompressus; apertura per-obliqua, oblonga, intus alba; peristoma late reflexum, nigrum. Diam. maj. 28, min. 23, alt. 23, millem. (Mus. Brit.)

This remarkable sh.e.l.l resembles a dwarf H. haemastoma in shape; it is of a porcelain white except at the aperture, which has a broad reflexed lip of a deep brown-black hue, both within and without. It is a very interesting species, indicative of the Indian affinities of the New Guinea fauna. A single specimen was taken in August 1849, on a breadfruit tree in Brumer Island, South-East coast of New Guinea.

Helix divisa. Tab. 2 fig. 5. a, b.

Testa obtecte perforata, lenticulari-depressa, orbicularis, carinata, cra.s.siuscula, superne fulva, radiato-striata, minutissime granulata, carina acuta, superne subcrenulata, basi convexa, nitidissima, griseo-albida, radiatim substriata ad umbilic.u.m declivens; spira convexiuscula; anfractus 5, planulati; apertura angulato-lunaris, intus margaritacea; peristoma simplex, basi incra.s.satum, ad columellam expansiusculum. Diam. maj. 23, min. 20, alt. 11, mill. (Mus. Brit.)

A Helix of the Caracolla section, allied to the C. panayensis of Broderip. Found on the ground at the roots of trees, in the South-East Island of the Louisiade Archipelago.

Helix louisiadensis. Tab. i. fig. 8. a, b.

Testa imperforata, globoso-turbinata, solidiuscula, sub lente rugosa, albida, fasciis variis purpureo-fuscis ornata; spira conoidea, rubescens; anfrac. 5 convexiusculi, ultimus magnus, paululum deflexus; apertura ovata, intus nitide livida, peristoma expansum, reflexum, sordide violaceum, margine externo sinuato, columellari incra.s.sato, dilatato, subsulcato. Diam. maj. 26, min. 21, alt. 20, mill. (Mus. Brit.)

This remarkable snail has a tendency towards a trochi-form contour. The ground colour 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, umbilic.u.m 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 alb.u.m, incra.s.satum, 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 sh.e.l.l 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 umbilicata, depresso-globosa, subcarinata, solida, radiato striata et subtilissime granulata, flavida; spira late depressa, convexiuscula, apice obtusa; anfractus 6 convexiusculi, ultimo obsolete carinato; apertura lunaris, intus alba; peristoma superne r.e.c.t.u.m, margine basali margine columellarique sub-reflexis, umbilicus profundus, conspicuus, vix obtectus. Diam. maj. 24, min. 21, alt. 16, mill. (Mus. Brit.)

This snail strikingly resembles some Illyrian forms. It has affinities with H. coriaria, a species said to be from Ceylon. It was taken under stones and about roots of trees in Dunk Island, on the North-East coast of Australia.

Helix franklandiensis. Tab. 2 fig. 2. a, b.

Testa aperte-umbilicata, tumido-depressa, nitidissima, superne radiatim striata, cornea, fasciis angustis transversis distantibus fulvis; spira angusta; anfractus 5 planiusculi, ultimus rotundatus, antice vix descendentes; apertura rotundata; peristoma simplex, vix acutum, r.e.c.t.u.m, margine columellari non reflexo. Diam. maj. 26, min. 21, alt. 14 mill.

(Mus. Brit.)

This beautiful snail is of a brightly shining yellowish or greenish horn colour. The whorls of its spire are small, but the body whorl, whilst preserving a wide diameter throughout, gradually increases in trumpet-like manner to the round mouth. It belongs to the same group with H. olivetorum and H. nitida, and is allied to the Australian H.

ptycomphala. It occurs about the roots of trees in the Frankland and Lizard Islands.

Helix iuloidea. Tab. 2 fig. 4. a, b, c, d.

Testa late et perspective umbilicata, orbicularis, superne depressa seu subconcava, rufo-cornea, regulariter costulata; anfractus 4 1/2 convexiusculi, ultimus tumidus, rotundatus; apertura lunaris; peristoma simplex, acutum. Diam. maj. 4 1/2, min. 4, alt. 3 mill. (Mus. Brit. & Geol.)

This curious little snail, resembling a rolled-up Iulus, and reminding us of our own H. rotundata and its allies, was found under a stone at Port Molle.

Helix inconspicua. Tab. 2 fig. 3. a, b, c.

Testa perforata, depresso-convexa, laevigata, nitidiuscula, pallide cornea, basi subcompressa; anfractus 6, planiusculi; spira obtusa; apertura lunaris; peristoma r.e.c.t.u.m, simplex, margine columellari reflexo: umbilicus minutus, subobtectus. Diam. maj. 8--min. 7--alt. 5 mill. (Mus.

Brit.)