154 
MOLLUSCA. 
penis armed with a sting. The known genera are Limapontia (Johnst.), 
= Chalidis (Quatref.), Actaonia (Quatref.), Cenia{A. H.) ? = Fu\_ci]cola 
(Q. G.), and Pelta (Quatref.). Limapontia capitata (Miill.) and its var. 
islandica (Steenstrup) described. Sketches of Pelta prasina (Morch), 
pi. xxiv. figs. 27-29. 
PULMONATA. 
C. Semper, Reis. Arch. Philippin. hi. pp. 129-168, continues his 
classification of Helicidce [see Zool. Rec. x. p. 155) in the following 
manner; — 
Sub-family 2, Helicince ; second group Aulacognatha, jaw narrow, 
finely striated. Philomycus, Cionella, Tornatellina, StenogyrUj 
Endodonta. 
Third group, Odontognatha : jaw ribbed or strongly striated, the 
ribs projecting at the cutting edge. 
First subdivision, without accessory glands to the genital organs : — 
Achatina (with sub-genera Limicolaria and Perideris, but ex- 
cluding Liguiis), Amphidromus, Bulimus (with sub-genera 
Borus, Dryptus, Pachyotus^ Scutalus, and Plectostylus), Buli- 
(with sub-genera Afesembrinus, Thaumastus and Zi^;arws), 
Otostomus (with sub-genera Otostomus, Pelecychilus^ Liostracus^ 
Alormus, Placostylus^ and Charis), Partula, and Hadra. To 
this division belong also Pleurodonta invalida (Ad.), Helix 
alhilabris and thyreoides (Say), Polygyra plagioglosaa (Pfr.), 
Helix vittata (Miill.) H. argillacea (F^r.) and Bulimus 
siamensis (Pf.). 
Second subdivision, with accessory glands to the genital organs; — 
Coclilostyla, including Corasia and Axina, but excluding 
Chlorcea. 
Binney gives a recapitulation of his researches on the dentition in 
many sub-genera of Helix and Bulimus, P. Ac. Philad. 1874, pp. 54-59, 
and makes some general remarks on the gradual modification of the 
lateral teeth in the radula of the Helicidce, Not. Am. Land Shells, ii. 
pp. 39 & 40. 
Onchidiid^:. 
Oiichidiwm sclirammi, sp. n., from Guadeloupe; no jaw, dentition 
similar to that of Peronia. Bland & Binney, Ann. Lyc. N. York, x. 
pp. 339-341, pi. xvi. figs. 3-5. 
Oachidella griseofasca, sp. n., Tapparone-Oanefri, Malac. viagg. Ma- 
genta, p. 101, pi. ii. fig. 1, Singapore. 
VAQINULIDiE. 
Vaginulus solea (Orb.) var. honariensis, Strobel, Malac. Arg. p. 3, 
woodcut, Buenos Ayres. 
Veronicella occiclentalis (Guild.). On its external appearance, jaw and 
dentition ; Bland & Binney, Ann. Lyc. N. York, x. p. 339. 
