60 LAND AND FRESHWATER 
Hyatimax (Jarava) virtpis, W. Theobald. 
Hyalimax (Jarava) viridis, W. Theobald, J. A. 8. B. 1864, p. 244. 
Original description :—‘Corpore eapanso, pone acuminato, flavo 
cinereo. Pallio magno, lete colorato yiridi-flavo limonis. Tentaculis 
superioribus longis, pallidis, oculos parvos nigros gerentibus ; et linea 
pallide smaragdina ad basin notatis. Tentaculis inferioribus minu- 
tissimis. 
“ Habitat inter folia in dumetis marinis ‘mangrove’ dictis apud 
littus Peguense, prope fines provincie Arracan. 
“This elegant little Zimaw is very active, and creeps about briskly 
on the green foliage of the salt swamps, which (7. ¢. the leaves) it 
resembles in colour.” 
There can be but little doubt, from the above description and 
the habitat, that this species must find a place here; how far it 
extends north, and whether Hyalimaa oceurs in the Sunderbunds it 
would be interesting to learn; but it may certainly be looked for 
there, especially on the eastern side, near Chittagong. 
EXPLANATION OF PLATE XI. 
Fig. 1, Animal of Hyalimax (Jarava) andamanica, from spirit-specimen, right 
side, X 4. 
2. Ditto, viewed from the left side. 
3. Ditto, right side, showing the position of the respiratory and anal 
orifices. 
4, 4a. Ditto: shell, x 8 and natural size. 
5. Ditto: view from below, x 4. 4, anal aperture; V, heart; /es.or., 
respiratory aperture; 7.m.7., retractor-muscle tentacles; 7.7.B., 
ditto, buccal mass. 
6. Ditto: much enlarged view of the buccal mass, showing the form of 
its posterior end, _ s, salivary-gland duct. 
7. Ditto: jaw, x 20. 
8. Ditto: central teeth of the radula, x 1250. 
9. Ditto: generative organs, x 8. 
10. Shell of Hyalimax perlucidus, Quoy and Gaimard, from Mauritius. 
Genus GEOMALACUS. 
The genus Geomalacus was first discovered by William Andrews, 
Esq., of Dublin, in 1842, and first described at a meeting of the 
Dublin Natural-History Society, in January 1843, by Prof. G. J. 
Allman, who afterwards gave a full account of it, with a drawing of 
the amma, in the ‘ Annals and Magazine of N ataral History,’ for May 
1846, vol. xvi. p. 297, the original description being as follows :— 
“Gen. Char. Corpus productum, lanceolatum, carine expers ; 
pallium scutiforme, ovatum ; spiraculum in margine anteriort pallit ; 
foramen genitale pone radicem tentaculi minoris dextri; testa solida, 
plana, subovata. Ab Arvione differt hoc genus situ foraminis geni- 
talis, a Limace cauda glandulifera et situ anteriori spiraculi. 
“G. maculosus, unica species quam in rupibus madidis comitatus 
Kerriensis repentem invent Gulielmus Andrews. 
“. .. . It is an exceedingly beautiful animal, measuring when 
