MOLLUSCA. 
581 
Realia ruhens (Quoy and Gaimard). Its dentition described and figured ; 
it resembles very much that of Chondropoma ; Omplialotropis ought not to be 
separated from it generically. Blanford, Ann. & Mag. Nat. Hist. iii. p. 341. 
Omphalotropis pfeifferi (Crosse, 1868), Crosse, Journ. Conch, xvii. p. 396, 
Lord Howe’s Island, New Hebrides. 
Pomatim hourguignati, sp. n., Ollastre, Pyr^nees-Orientales ; P. henoiti, 
sp. n., Sicily ; P. protr actus, sp. n,, Sicily and Southern Italy ; P.paladilhianus, 
sp. n., Sicily ; P. hispanicus, sp. n., Oviedo ; P. mahillianus^ sp. n., Eaux- 
bonnes. Hep. Basses-Pyrenees ; P. athmarum, sp. n., Athens ; P. hellenieus, 
sp, n.. Mount Parnassus, in Greece. St. Simon, Revue et Mag. Zool. 1869, 
pp, 3-8. 
The same author enumerates 42 recent species of this genus, ibid. pp. 8-22 ; 
it extends from the Himalayas through Middle and Southern Europe to the 
Canary Islands. Five other species are known from tertiary and diluvial 
strata. 
Truncatellid.®. 
Acuialia. Schaufuss in Patel’s Systcme und Cataloge, pp. 16 & 92, sub- 
stitutes this name [quite unnecessarily] for Acictda (Hartm.), which is said 
to bo preoccupied. [The Recorder does not know that the name Acicula 
has been used on any other occasion than by Risso for Achatina acicida^ and 
this dates from 1826, whilst Hartmann published in 1821. Moreover there 
are two other generic names for the first species of Acicula^ viz. Acme, 
Hartm., 1821, and Puptda, Ag., 1837.] 
Acmella is a new subgenus of Acicula, proposed by Blanford for Hydrocma 
tersa (Bens.). Ann. & Mag. Nat. Hist. iii. p. 177, pi. 16. fig. 2. — E. v. Mar- 
tens thinks that this cannot belong to Acicula, but rather to Assiminea. 
Mai. Blfitt. xvi. p. 225. 
Truncatella costulata (R\^s6)=truncatida (Drap.). Spinelli says that this 
animal lives attached to plants growing on the banks (rive) of channels of 
brackish water. Catal. Moll. terr. e flum. Venez. p, 24. 
Truncatella arctecostata, sp. n., Mousson, Journ. Conch, xvii. p. 68, pi. 5. 
fig. 4, Paumotu Islands. — T. diaphana, sp. n., Gassies, ibid. p. 78, Art Island, 
New Caledonia. 
Assiminea5. 
W. II. Pease has given a list of 31 species probably belonging to Assi- 
minea, expressing it as his opinion that some others should be referred to 
Omphalotropis. — Assiminea lucida, sp. n., Anaa Island, Journ. Conch, xvii. 
pp. 161-166, pi. 7. fig. 10. — Crosse expresses his doubts with regard to the 
pertinence of A. gallica to this genus, ibid. p. 162, footnote. — Assmiinea nitida 
figured by Pease, ibid. fig. 11. 
Ilydrocena tersa (Bens.) belongs perhaps to Assiminea. Martens, Mai. 
Blfitt. xvi. p. 226. 
Assiminea gray ana and littorina, Jeflreys, Brit. Conchol. v. pp. 97-102, 
pi. 4. fig. 1, pi. 97. figs. 6 & 6. 
Assiminea obeliscus, sp. n., Paladilhe, Rev. et Mag. Zool. 1869, p. 379, 
pi. 19. figs. 4, 6, from alluvial soil in Algeria [an Assiminea vel Hydrohia ?]. 
