VITRINA. 
Puate X. 
Species 70. (Mus. Cuming.) 
Virrina austraLis. Vitr. testd depressissime auriformi, 
basi apertd, lutescente-corned, spird parvd, subim- 
mersd, anfractibus ad suturas impressis, arcuatin sub- 
plicato-striatis, margine membranaceis. 
Tue AusTRALIAN Virrina. Shell very depressly ear- 
shaped, open at the base, yellowish horny, spire small, 
rather immersed, whorls impressed at the sutures, 
faintly arcuately plicately striated, membranaceous at 
the edge. 
Prerrrer, MS. in Mus. Cuming. 
Peltella australis, Adams. 
Hab. Wastern Australia. 
This, and six other species of the plate, belong to the 
genus Peltella of Webb and Van Beneden, in which only 
a section of the whorls is formed; the base of the shell 
next the animal is open or to membranaceous to be pre- 
served. 
Species 71. (Mus. Cuming.) 
ViTRINA APERTA. Vitr. testdé depressissimé auriformt, 
basi apertd, virescente-corned, spird minuta, laterali, 
anfractibus convexiusculis, margine membranaceis. 
THE opEN Virrina. Shell very depressly ear-shaped, 
open at the base, greenish horny, spire minute, lateral, 
whorls slightly convex, membranaceous at the margin. 
~ Beck, Pfeiffer, Pro. Zool. Soc. 1848, p. 107. 
Peltella aperta, Adams. 
Hab. Island of Luzon, Philippines ; Cuming. 
A small flattened horny shield, with only a small lateral 
convoluted nucleus. 
Species 72. (Mus. Cuming.) 
VITRINA DIMIDIATa. Vitr. testa depressissime ovata, basi 
apertd, lutescente-corned, spird pared, subpland, late- 
rali, anfractibus convexiusculis, levibus, margine mem- 
branaceis. 
THE HALF Virrina. Shell very depressly ovate, open 
at the base, yellowish horny, spire small, rather flat, 
lateral, whorls slightly convex, smooth, membrana- 
ceous at the margin. 
PFEIFFER, Pro. Zool. Soc. 1852, p. 56. 
Fab. New Zealand. 
Of rather a more oblong-ovate form, with the convo- 
luted nucleus of the whorls not quite so contracted. 
Species 73. (Mus. Cuming.) 
Virrina LAMARCKII. 
branaceo-corned, parum nitente, spird planiusculd, an- 
Vitr. testé depresse ovali, mem- 
fractibus convexis, lavibus, vix striatis ; aperturd per- 
ampli, subhorizontalt. 
LAMARCK’s VITRINA. 
ceous horny, but little shining, spire rather flat, whorls 
Shell depressly oval, membrana- 
convex, smooth, scarcely striated ; aperture very large, 
almost horizontal. 
Helicolimax Lamarchii, Férussac, Prod. p. 21. Hist. pl. 9. 
i, Os 
Vitrina Lamarckii, Gray. 
Vitrina Teneriffe, Quoy and Gaimard. 
Vitrina Cuvieri, Sowerby. 
Hab. Canary Islands. 
This species is somewhat intermediate in its characters 
between the typical forms of Vitrina proper and Peltella. 
The basal reflected edge of the shell is narrow and par- 
tially membranaceous. 
Species 74. (Fig. a, b, Mus. Cuming.) 
| Virrina ALBo-PUNCTATA. Vitr. testa ovatd, albido-corned, 
basi apertd, spird parva, subobscura, anfractibus sub- 
ventricosis, arcuatim striatis, rugis linearibus impressis 
minute spiraliter decussatis. 
THE WHITE-DoTTED Virrina. Shell ovate, whitish 
horny, open at the base, spire small, rather obscure, 
whorls somewhat ventricose, arcuately striated, mi- 
nutely spirally decussated with impressed linear 
wrinkles. 
Geaotis albo-punctata, Shuttleworth, MS. in Mus. Cuming. 
Hab. Humacao, Porto Rico. 
A distinct Bulla-like form of the Pedtella section of the 
genus, in which the shell has a decussated surface. The 
name ‘‘ white-dotted ” refers to the animal. 
Species 75. (Mus. Cuming.) 
VITRINA FLAVO-LINEATA. Vitr. testdé depressé ovata, al- 
bido-corned, basi plus minus apertd, spird minutd, 
plana, obscurd, anfractibus subventricosis, decussatim 
striatis, margine membranaceis. 
May, 1862. 
