KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 52. w:o I6. 73 
FAM. BULIMULIDAE. 
Bothriembryon indutum Mrnxn. Waaloo (Aug. 1911), many sps, max. 1. 33 mm. 
FAM. LIMACIDAE. 
Limax arborum Bovucnarp-Cuanrervaux. Perth (*/s 1911), 4 sps, max. |. 
24 mm. Its colouring is very characteristic. The shield has two lateral, entire, and 
one median, broken, band; out of the former a trace of a broken line emerges; the 
back has two latero-dorsal entire lines. This species has not before been recorded 
from Australia, and its occurrence at Perth is, like that of all Australian Limacidae, 
due to importation from Europe. 
Amalia gagates Draparnaup. Perth (*'/s 1911), 1 sp., 1.17 mm. It corre- 
sponds, both in exterior characteristics and in the structure of the radula, with this 
species from Europe, from where it has been introduced (cf. Musson 1891). 
FAM. SUCCINEIDAE. 
Succinea strigillata Apams & ANnaas. Geraldton, under dry bark, many sps, 
max. h. 6.2 mm, which agree very well with the figure and description in Cox (1868, 
pl. 15, fig. 5); the distinct striation is especially characteristic. 
FAM. ONCIDIIDAE. 
Oncis cinerea n. sp. (Pl. 3, figs 75, 76). Body depressed, rounded ovate, with 
the notaeum densely papillose with rather regularly scattered small and larger papillae. 
Eyes only about 15, wide apart from each other, occupying chiefly the median part 
of the notaeum. Hyponotum smooth, its breadth about 17/2 of the foot sole. Anus 
free, immediately behind the foot end. Respiratory orifice in the median line, at 
1s of the breadth of the hyponotum from the anal pore. Colour grayish, with a 
blackish dorsal stripe and an ovate blackish girdle round the median part of the back; 
towards the margins, black dots. Dimensions: length 9, breadth 8.5, height 3 mm; 
breadth of foot sole 2, of hyponotum at its side 3.5 mm. Locality: Broome, in 
mangrove mud ('%/s 1911), 1 sp. 
Though this specimen might be only a young individual, it cannot be referred 
to any of the 9 known species constituting the genus Oncvs (cf. SranrscHinsky 1907). 
With respect to its shape, it shows close relation to O. martensi PLArp, which has, 
however, a uniform lemon colour. According to STANTScHINSKY (1907), Oncidium 
and Oncis are »richtiger als durch Ubergangsmerkmale zusammenhingende Subgenera 
anzusehen. » 
K. Sv. Vet. Akad. Handl. Band 52. N:o 16 10 
