526 HELIX. 
convexiusculi, sutura mediocri separati; ultimus amplior, inflatus, 
rotundatus, ad aperturam non descendens; apertura fere verti- 
calis, magna, sublunata; peristoma simplex, acutum, margine 
dextro regulariter arcuato, columellari ad insertionem reflexo. — 
Diam. maj. 7, min. 6, alt. 6; apert. alt. 37/5, lat. 32/; mill.» (1.) 
Nanina tersa (Macrochlamys) Jssel Moll. Born. 1874. p. 36. t. 5. 
f. 1—4. 
Habitat in insula Borneo. 
* 
239. Gundlachi Pfr. — Jelir pusilla Pfr. olim, egena Gould. 
245*, Hi. perlucida (Hyalina?) Issel. T 
«Testa parva, minutissime perforata, orbiculato-conoidea, 
fragilissima, corneo-lutescens, perlucida, sub valida lente ob- 
lique striatula; spira convexo-conoidea, apice obtuso; anfractus 
5 convexiusculi, lente crescentes, sutura distincta separati, ul- 
timus basi paululum convexus, ad aperturam non descendens; 
apertura verticalis, angusta, lunata; peristoma acutum, margine 
columellari ad insertionem breviter reflexo; area umbilicalis 
paululum  excavata. — Diam. maj. 2'4, alt. 2; apert. long. 
4l. mill.» (I.) 
Hyalina / (?) perlucida Issel Moll. Born. 1874. p. 39. t. 5. 
f. 20— 23. 
Habitat Bintulu in territorio Sarawak, Borneo (Doria, Beccari). 
944?*. Hi. Miacdougalli (Nanina?) Issel. T 
« Testa subobtecte perforata, orbiculato-conoidea, fragilissima, 
corneo-lutescens, paululum nitens, translucida, sub valida lente 
oblique striatula; spira convexo-conoidea; anfractus 4!/, con- 
vexiusculi, sutura distincta separati, ultimus plerumque obscure 
subangulatus, basi convexus, antice paululum descendens; aper- 
tura obliqua, lunata; peristoma acutum, margine columellari ad 
perforationem breviter reflexo. — Diam. maj. 2, alt. 1!/5; apert. 
long. 4 mill.» (l.) 
Nanina (?) Macdougalli Issel Moll. Born. 1874. p. 37. t. 5. 
f. 9—12. 
Habitat in territorio Sarawak, Borneo (Doria, Beccari). 
* 
946. Vimontiana Crosse. — Crosse in Journ. Conch. XXIII. 1875. 
pe947. 119/459: 
