228 
CRUSTACEA. 
* Eurydice pulchra (Leach) = Slabherina agilis (Sars), is very rapa- 
cious; Metzger, Ber. Unters. Pommerania, p. 301. This species = 
Oniscus achates (Slabber) = Slabherina agata (Beneden), and is de- 
scribed from specimens found near Travemiinde in the Baltic, on weed 
cast ashore, by H. Lenz, Wirb. Thiere Travem. Bucht, p. 15, pi. ii. 
figs. 10-17. 
PHYLLOPODA. 
The fresh-water Phyllopoda of North America are reviewed, with the 
addition of some general remarks on their development, by A. S. 
Packard, jun. ; he enumerates 2 Limnetis, 3 Limnadia^ 1 Limnadella, 
6 Estheria, 1 Lepiduru^^ 4 Apus^ 3 Artemia^ 3 Branchinecta, 1 Eubran- 
chipus^ and 1 StreptQcepJialus, all with short diagnosis, and figures the 
Nauplius-stage of Branchipus and Apus. Ann. Rep. U. S. Terr. 1875, 
pp. 613-622. 
ApODIDiE. 
Apus cancriformis (Schalf.). The development from the egg to the 
perfect state described ; 0. Claus, Abh. Ges. Getting, xviii. [1873]. 
Apus cequalis (Packard, 1871) figured; Ann. Rep. U. S. Terr. 1875, 
pi. iii. fig. 10. 
Lepidurus couesi, sp. h., Packard, Am. Nat. ix. p. 312, Montana. L. 
glacialis (Kroyer) figured ; Ann. Rep. U. S. Terr. 1875, pi. iii. fig. 9. 
BEANCHIPODIDiE. 
T. Spungenberg describes the breeding and development of Bran- 
chipus. stagnalis, comparing it with that of Apus cancriformis ; he ob- 
serves that its fresh eggs sink to the bottom, but after having dried up, 
they swim on the surface before hatching ; he discusses also the morpho- 
logy and anatomy of the adult Branchipus^ attributing 3 segments to the 
head, 2 to the thorax, 19 to the abdomen, and 1 segment to the post- 
abdomen or tail, this last wanting the feeling bristles, and not containing 
any part of the heart. Z. wiss. Zool. xxv., suppl. vol. pp. 1-64, pis. i.-iii. 
The question as to what is to be regarded as the abdomen and post- 
abdomen in this genus and the allied Artemia, is also discussed by 
Schwankowitsch, and decided in another sense, attributing 7 (6) segments 
to the post-abdomen ; tom. cit. pp. 114 & 115. On the development of 
Branchipus^ see also Claus, Abh. Ges. Getting, xviii. [1873]. 
The sexual organs of Branchipus grubii (Dyb.) are described, and the 
formation of the spermatozoids discussed^ the cells of the testicle giv- 
ing origin to other round smaller cells, in which the spermatozoids 
are formed ; H. Nitsche, Z. wiss. Zool. xxv., suppl. vol. pp. 281-296, 
pi. xxii. 
W. J. Schwankowitsch comes to the conclusion, from his observations 
on the shores of the Black Sea, that both in natural ponds and by arti- 
ficial breeding Artemia salina (M.E.) is transformed in the course of 
several generations into A. muehlhauseni (M.-Edw.) by increased con- 
