10 Bapt. 
REPTILTA AND BATKACJIIA. 
ViPERIDiE. 
Vipera berus. On its occurrence in the Veneto ; Ninnf, Atti Soc. Ital. 
xxii. A reply by De Betta ; Atti 1st. Yen. (5) vi. pp. 1015-1020. 
Vipera aspis. Note on the breeding season of this species, by Lessona, 
Atti Acc. Tor. xv. p. 613. 
Vipera berus, L., p. 361, aspis, L., p. 379, ammodytes, L., p. 385. Notes 
on these species by De Betta, Atti 1st. Yen. (5) vi. 
2'rigonocephalus lialys, Pall. Note by De Betta, 1. c. p. 388. 
Botriechis scutiyera, p. 218, pi. viii. figs. 8 & 9, and nummifera, p. 222, 
pi. viii. figs. 10-12, Guatemala, spp. nn , Fischer, Arch. f. Nat. 1880. 
Trirneresurus riulciuanus, sp. n., Hilgendorf, SB. Nat. Fr. 1880, p. 118, 
figs. 6-10, Japan. 
BATRACHIA. 
Kastsciienko, N. Ueber die Genese und Architectur der Batrachier- 
knochen. Arch. mikr. Anat. xix. pp. 1-52, pis. i. & ii. 
Kuhn, A. Ueber das hautige Labyrinth der Amphibien. Op. cit. xvii. 
pp. 479-550. 
Nussbaum, M. Zur Differenzirung des Geschlechts im Thierreich. Op. 
cit. xviii. pp. 1-121, pis. i.-iv. 
This work contains details upon sexual organs in Batrachia. 
Parker, W. K. Structure and Development of the Skull in the 
Batrachia. Part iii. Abstract in P. R. Soc. xxx. pp. 435-438. 
Yan Bambeke, C. Nouvelles Recherches sur I’Embryologie des Batra- 
ciens. Archives de Biologie, i. pp. 305-380, pis. xi.-xiv. 
This memoir is divided into two parts. The first treats of the 
envelopes of the ovum, and of the external embryonary transformations 
in the tailed Batrachia — Axolotl, Triton alpestris, helveticus, and tceniatus; 
the second is devoted only to the study of the division of the ovum in 
the same species, and in two Ecaudata, Pelobates fuscus and Bafo vulgaris. 
The author distinguishes five envelopes round the ovum, and enters 
into some details concerning their synonymy, which is in great disorder. 
In the transformation of the embryo, to the moment it leaves the egg 
17 periods are defined. Finally, the author compares the results obtained 
by him with those obtained by Goette, Biitschli, 0. Hertwig, Scott and 
Osborn, and Beneke. 
ECAUDATA. 
On the sexual characters of the Batrachia Ecaudata', L. Camerano, 
Atti Acc. Tor. xv. pp. 683-702, with woodcuts. 
On the green colouration of the skeleton of Pseudis paradoxa ; id. 1. c. 
pp. 789-794. [The Recorder has examined the type specimen of Pseudis 
minuta in the British Museum, and thinks it useful to state that, con- 
