580 
ZOOLOGICAL LITERATURE. 
Diplommatinacea. 
Diplommatina. J. Macdonald states that the eyes are situated at the 
outer bases of the tentacleS; as in the Cyclophorid(Bf and that the lingual den- 
tition agrees with that of the family mentioned j further he points out that the 
conchological characters of this genus are wider than is generally acknow- 
ledged, there being dextral and siuistral species, species with and without 
tooth on the columellar lip, and even species with rudimentary operculum. 
Ann. & Mag. Nat. Hist. iv. pp. 77-81, pi. 4. tigs. 1-10. [According to this 
view the genera Paxillus, Palaina, and Moussouia must be merged in Diplom- 
matina.~\ 
In many species there is a constriction in the penultimate whorl, but 
concealed by the peristome. As this genus agrees in the sculpture, want of 
colour, &c. with AlycceuSf and dilFers therein from the rest of Cyclophoridce, 
a subfamily, “ Alycceincs,^' is proposed j dentition not yet known. Blanford, 
Aim. & Mag. Nat. Hist. iii. p. 843. 
Diplommatina martensi (II. Ad.) found in the Island of Avolau, Fiji 
Islands. Brazier, Proc. Zool. Soc. 1869, p. 500. 
Palaina coxi (H. Ad.) found in the pine-forests of Norfolk Island. Brazier, 
ibid. 
Opisthostoma 7nacrostoma, sp. n., Blanford, Journ. As. Soc. Bengal, xviii. 
p. 139, pi. 16. tig. 7, Bramagivi Hills, Malabar,- O. fairbanki (Blanf., 
tigured on the same plate, tig. G. 
Alyccms. Dentition of A. vulcani (Blanf.) tigured. Blanford, Ann. & 
Mag. Nat. Hist. iii. p. 344. 
Alycceus inyraini (Blanf.), Arakan, and vulcani (Blanf.), Ava. Pfeiffer, 
Novi tat. Conchol. iii. pp. 448, 449, pi. 98. tigs. 34-36 and 37-39. 
Cyclostomidas. 
Cyclotopsis (Blanf.), foot longitudinally divided as in Cyclostoma proper ; 
operculum resembling that of Choanopoma y Cyclotus conoideus (Plr.) belongs 
, to Cyclotopsis. Blanford, Ann. «& Mag. Nat. Hist. iii. p. 342. 
Cyclostoma. Two species, of which one appears to be now, were found on a 
newly formed island near Mauritius j there is no doubt that they were trans- 
ported by waves. Robillard, Trans. B. Soc. of Arts and Sciences of Mauri- 
tius, iii. p. 106. 
W. H. Pease has published a list of the species of the family 
Realiea,^* and arrived at conclusions similar to those pub- 
lished by the Recorder in Mai. Bliitt. ISGT (see Zool. Record, i. 
p. 239). He states that tlie name Realia (Liarea of Gray) 
should be restricted to the New-Zealand species, and that a 
great number of small shells, described by several authors as 
Hydrocena, do not belong to this genus. He enumerates 6 spe- 
cies of Realia, 58 of Omphalotropis (a genus with two sections 
distinguished by the presence or absence of a basal keel), 3 of 
Scalinella, 4 of Japonia, and 2 of Bourciera. Crosse is right in 
opposing the arrangement of the last genus with this family. 
Journ. Conch, xvii. pp. 131-161. Many of the species are 
figured. 
