No. 388.] REVIEWS OF RECENT LITERATURE. 343 
and the relations of animals to human interests. The book is well 
illustrated with two hundred and eighty-one cuts, none of which indi- 
cate the source from which they were copied. 
We wish to call attention to the valuable 
work by G. O. Sars? on the Crustacea of Norway, of which the second 
volume, treating of Isopoda, is nowcurrent. Every species is figured, 
often an entire plate being devoted to the figures of the entire ani- 
mal and enlarged views of appendages. The text contains a brief 
description of every species, with valuable remarks on occurrence 
and distribution, and with synonymy. ‘The last parts have treated 
of the Oniscidz (wood lice, etc.), which have a special interest as 
being the sole large group of terrestrial Crustacea. From the fact 
that North American Crustacea closely resemble the Norwegian ones 
this work is of great value to American naturalists who are not 
regardless of the need of carefully identifying the species they 
study. 
Japanese Pulmonates. — Dr. Jacobi? has made a thorough ana- 
tomical research on twenty-eight species of Japanese shell-bearing 
Pulmonata belonging to the genera Helecarion, Conulus, Ganesella, 
Helix, Eulota, Acusta, Euhadra, Plectotropis, A°gesta, Eulotella, Tris- 
tropeita, Slercophedusa, Bulimus, Succinea, and Limnza. This is 
conscientious work of a much needed kind, unfortunately limited to 
alcoholic material; a compact mass of information, free from general- 
izations. The plates are excellent. ON Sack 
Brooding in Frogs. — The singular brooding habits of a small frog, 
Arthroleptis Seychellensis, from the Seychelle Islands, are described 
by Professor August Brauer in the current number of Spengel’s 
Zoologische Jahrbücher. The eggs are laid in damp places on, the 
ground, and are kept covered and moist by the male until the larve 
are hatched, which occurs at the stage when they are provided with 
a long tail, and the first traces of the posterior appendage make 
their appearance. After hatching, the tadpole-like larvae crawl upon 
the back of the male and attach themselves by the abdomen by 
means of secretions elaborated both by the larve and the adult. 
1 Sars, G. O. An Account of the Crustacea ii o vol. ii, Isopoda. 
Bergen, published by the Bergen Museum, 1897 a 
2 Jacobi, A. Japanische beschalte PEE Ja Coll. Sci. Imp. Univ. 
Tokio, XII, Pt. I. 102 pp., 6 plates. 
