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PULMONATA OPERCULATA. 169
Acicula veneta, proposed by Pirona in 1865, now established as a distinct
species by E. de Betta, Malac. Venet. p. 89, Verona and Belluno. The author
suggests that the figure given by L. Pfeiffer in the new edition of Chemnitz,
Cyclostomacea, pi 30. figs. 29-31, for spectabilis (Rossm.) represents this
species. The same is mentioned as Acicula spectabilis (Rossm.) ?, from Pirona,
•Monte Baldo, and Udine, by Betta, Moll. Veron. pp. 102, 103.
Truncatella arcasiana, Crosse, figured, J. de Conch, xviii. pi 7. fig. 13, Fiji
Islands (cf. Mousson, ibid. p. 196).—T. turrieula and funiculus, spp. nn.,
Mousson, ibid. pp. 196,197, Fiji Islands.
ASSIMINE^E.
Acmella, Blanf., elevated to generic rank. Testa ovata, cornea, apertura
ovata, peristomate obtuso; operculum corneum, tenuissimum, paucispirale,
nucleo excentrico, sinistral! Animal Assiminece simile, proboscide brevi,
tentaculis brevibus, obtusis, oculos insuper haud proeul ab extremitatibus gerentibus,
pede mediocri ovato. A. tersa, Bens., lives in moist places, near small
streams, but not upon their edges, at a height of 4000 feet above the sea, in
the Khasi Hills. Lingual dentition not yet ascertained. The author admits
that it may be allied to Assiminea. Blanford, Ann. N. H. (4) vi. pp. 368-
370. (See Zool. Rec. vi. p. 581.)
HELICINIDJE.
Helicina gallina and mediana, spp. nn., Gassies, J. de Conch, xviii. p. 145,
New Caledonia.—H. mariei, porphyrostoma, mouensis, and benigna, spp. nn.,
Crosse, ibid. pp. 244-246, New Caledonia.
Helicina tectiformis, interna, and semperi, spp. nn., Mousson, ibid. pp. 199-
202, pi. 8. figs. 6-8, Fiji Islands. Some remarks upon varieties of known species
from the same islands by Mousson, ibid. pp. 198, 200,203.
Helicina mangoensis, sp. n., Sowerby, P. Z. S. 1870, p. 250, Mango Island,
Fiji.
Helicina angulata, Sow., and H. brasiliensis, Gray, both from Rio Janeiro,
and probably not distinct. Hidalgo, J. de Conch, xviii. p. 69.
Helicina occulta, Say, found living at Whitefish Bay, Wisconsin, by E. R.
Leland; its dentition photographed by Binney and Bland, Ann. Lye. N. York,
ix. pp. 287-290; it differs somewhat from that of H. orbiculata given- by
Troschel.
Georissa. The identity of this genus with Hydrocena, Parreyss, in its
original circumscription, is admitted by Blanford, Ann. N. H. (4) vi. p. 368
(see Zool. Rec. vi. p. 582).
Hydrocena brevissima, sp. n., Mousson, I. c. p. 194, Vanua-Valabo, Fiji
Islands. It is not ascertained whether it really belongs to that genus.
PROSERPINIDJE.
Cyane, gen. nov., near Proserpina, base of the columella truncate instead
of being furnished with a spiral plait; no palatal parietal lamina?. C. blandiana,
sp. n., H. Adams, P. Z. S. 1870, p. 376, pi 27. f. 2, Eastern Peru.
1870. [VOL. VII.] N