GASTRoroDA (nudibranchia, pulmonata). Moll. 6t 
Limapontiidas. 
Rhodope veranii, first described as a Mollusk by Kolliker, in 1867, 
= Sidonia elegans (M. Schultze), described as Turhellaria ; it has no 
heart, blood-vessels, gills, renal organ, or radula analogous to that of the 
Mollusca ; but, on account of the infra- oesophageal commissure of the 
central nervous ganglions, its otocysts being ciliated inside, and the 
lateral opening of its genital organs, is to be considered as a low form of 
Gastropods. L. v. Graff, Morph. JB. viii. pp. 73-84, pi. ii. R. Bergii, 
on the contrary, thinks it better placed with Turhellaria ; Zool. Anz. 
1882, pp. 550-553. 
PULMONATA. 
J. Wood-Mason (P. A. S. B. 1882, pp. 61-64) subdivides the Stylom- 
matopliorous Pulmonata as follows : — 
1. Craspedophora , possessing a ciliated peripodium {supra, Generalities). 
(a) A peripodial pit at its posterior extremity : Arion, Geomalacus , 
Dcndrolimax , Cryptosoma , Austenia, Tennentia , Parmarion , 
Girasia, Helicarion , Nanina , Microcystis , Macrochlamys , Si- 
tala, Ariophante, Rotula , Euplecta, Eurypus , Martensia, 
Macroceros, Xesta , Rhysota, Ventridens , ? Thalassia , Sesara, 
Durgella, Odontoprion, ? Caldwellia, and Ferussacia. 
( b ) Peripodial pit absent : Limax, Oopelta, Parmacella, Anadenus , 
Philomycus, Vitrinopsis, Vitrinoconus, Vitrina, Ilyalina, Gas- 
trodonta, Trochoniorpha, Plcctopylis , Videna, &c. 
2. Lipocraspeda. No distinct peripodium. The families Jlelicidce [in- 
cluding also Succinea, Orthalicus, Clausilia, Pupa , &c.], Tcstaccl- 
lidce, and Vaginalidce. 
[The first group, with peripodial pit, coincides essentially with the 
family Arionidce, as proposed by Gray in the Catalogue of Pulmonata 
of the British Museum, 1855, pp. 3 & 51, or the Pherepora of Desmou- 
lins, Act. Soc. L. Bord. iii. 1824. — Rec.] 
On ovo-viviparous inoperculate land snails; Rociiebrune, Bull. Soc. 
Philom. (7) vi. pp. 219-225. 
Agnatha. 
Trigonochlamys imitatrix (Bottg.), pharynx and radula described, jaw 
smooth, radula of the type of the Testacellidai ; Mahillea (Bourg., 1877) 
is also probably nearly allied to it. Hesse, JB. mal. Ges. ix. pp. 29-32, 
pi. ii. figs, \a-\e. 
Testacella maugei (F5r.). J. Darker Butterell describes its method of 
swallowing a worm after transfixing it by the extruded odontophore 
(radula) ; J. of Conch, iii. p. 277. 
Daudebardia rufa (Dr.), hassiaca (Clessin), and brevipes (Dr.), note on 
their occurrence near Cassel ; Diemar, Nachr. mal. Ges. 1882, pp. 44-46 
& 89-91. Some species figured by Kobelt ; Rossm. Iconogr. (2) i. pi. i. 
