GASTROPODA (nUDIBRANCHIA) — (pULMONATA). 179 
Pterceolidia^ g. n. Rhinophoria perf oliata ; tentacula(inf.) elongata ; 
papillae dorsales non caducae, pedamentis compressis aliformibus insertae, 
eradiantes ; podarium margine antico inflate, angulis tentaculatim pro- 
ductis ; margo masticatorius mandibulae seriebus denticulorum complu- 
ribus praeditus ; radula dentibus uniseriatis ; penis non armatus.” Type, 
P. semperi (Bergh, 1870, as Flahellina). Id. 1. c. p. 652. . 
Cerberilla (Bergh, 1873 ; see Zool. Rec. xi. p. 153). Tq this genus 
belongs also Eolida annulata, Quoy and Gaim., redescribed from Tahiti ; 
id. 1. c. pp. 652-655, pi. xiii. figs. 14-17, pi. xiv. fig. 1. 
Hervia modesta (Bergh, 1871) fully described ; id. op. cit. xxiv. pp. 
409-411, pi. viii. figs. 1-3, Kattegat. 
Matharena oxyacantTia (Bergh, 1871) fully described ; id.-l. c. pp. 412 & 
413, pi. viii. figs. 4-8, Liimfjord, Jutland. 
Glaucus. On the anatomy, especially the nervous system, A. Vays- 
siere, Ann. Sc. Nat. (6) i. art. 7 [1874], 17 pp. pis. x. & xi. Eyes and 
otocysts are present, but little developed. [It is to be regretted that the 
author did not know of Bergh’s elaborate monograph in Dan. Selsk. Skr. 
(5) vii. 1867.] 
Hermjiid.®. 
Hero formosa (Loven), Kattegat, and a probably new species, 
known only from a drawing by A. Boeck, described by R. Bergh, in 
Semper’s Reis. Arch. Phil. ii. pp. 309-314, pi. xxxviii. figs. 23-26, 
pi. xxxix. figs. 14-26. 
Elysiidjb. 
Placohranchus gassiesi, sp. n., Crosse, J. de Conch, xxiii. p. 319, pi. xii. 
fig. 9, New Caledonia. List of the known species of this genus ; id. 1. c. 
pp. 325-328. 
Pelta coronata (Quatref.) = Runcina hancochi (Forbes), the former 
founded on imperfect specimens ; P. Fischer, J. de Conch, xxiii. p. 214, 
footnote. 
PULMONATA. 
L. Pfeiffer has published the first part of a new (seventh) volume 
of his justly renowned “ Monographia Heliceorum viventium,” a sys-“ 
tematic enumeration of all the known species, with descriptions (for the 
most part copied verbatim) of those published from 1868 to 1875. This 
contains the genera Tcstacella, Gccotis, Parmella, Binneya^ Daudebardia^ 
Vitrina (including Helicarion), Simpluopsis, Succinea^ Strebelia^ and about 
the half of Helix in its old vast extent. 
W. G. BinnEy gives a recapitulation of the results of his researches into 
the structure of the jaw and radula of the North American 
geophila ; these parts are at present known in nearly two-thirds 6f the 
species (188 out of 280), which are arranged by the author in the fol- 
lowing manner : — 
OLEACINIDA3 gen. Glandina (no jaw). 
