9 Orust. 
CRUSTACEA. 
Half-dead and dead Caprellidce and other small Crustacea drive on tlie 
surface of the water, whereas the living animals sink ; Haller, Z. wiss. 
Zool. xxxiii. p. 093. 
Geographical Distribution. 
1. Terrestrial and Freshwater Orustacfa. 
Iceland. Undetermined species of Qammarus and Daphniidce ; Rouge- 
MONT, Bull. Soc. Neuch. xi. p. 189. 
New British Entomostraca : Leptodora hyalina (Lillj.) and Daphnia 
bairdi (Graham) = Hyalodaphnia kahlbergiensis (Schodl.) ; Forrest, 
Midland Naturalist, ii. pp. 225 & 217, J. R. Micr. Soc. ii, p. 877, & Rep. 
Brit. Ass. (Sheffield) 1879, p. 069. 
Switzerland. 42 species of Cladoceva observed at Bern, A loaa lineata 
and Chydorus sphcericus (Mull.) on the pass of S. Giacomo at a height of 
2400 metres. A. Lutz, MT. Ges. Bern, 1879, pp. 38-54. 
Lake of Geneva. 1 Amphipod, 1 Isopod, 6 Cladocera^ 5 Ostracoda, and 
4 Cyclopidce enumerated by F. Forel, Bull. Soc. Vaud. xvi. pp. 318-320. 
8 species of Oladocera^ 4 of Ostracoda A of Copepof/«, found in the depths 
of this lake, enumerated by H. Vernet, op. cit. xv, [1878] pp. 526. 
Some observations concerning the pelagic Cladocera and Copepoda of 
the lakes in Upper Italy by P. Pavesi, Bull. Ent. Ital. ix. [1877] have 
been (>mitted from former Records. The author has continued his 
researches on this subject, and observed 14 pelagic species of Cladocera 
and 8 of Copepods in various lakes of Northern and Middle Italy, all 
identical with German and Norwegian species ; they extend from the 
surface to 10-12 metres in depth ; he thinks that they are of marine 
origin. Rend. 1st. Lomb. (2) xii. pts. 11, 12 & 16. 
A new genus of freshwater Amphipods from Warsaw, nearly allied to 
Cranyouyr, by WuzESNiowSKi, Zool. Anz. ii. p. 299. 
Lake Gokcha, in Armenia. Many Gammaridw^ some Cladocera^ 
Ostracoda, and Cyclopidui, not yet determined ; no Decapods or Isopods. 
Specimens of Gammaridce from depths of 45 fath. seem to have rudi- 
mentary eyes. A. Brandt, Zool. Anz. ii. p. 525. 
Palcemonetes vulgaris (Say) is common in shallow water along the 
Eastern coast of the United States, ascending far up into the brackish 
water of estuaries and rivers, even where the water is perfectly fresh to 
the taste. It is represented in fresh w’ater by a smaller and more slender 
species, P. exilipes (Stimps.), which has a wide distribution in the rivers 
and lakes of the Western and Southern States. Faxon, Bull. Mu.s. 
C. Z. V. No. 15, p. 304. 
Mysis^ sp. n., in Lake Erie, Am. J. Micr. iii. [1878] p. 284 ; abstract in 
J. R. Micr. Soc. ii. p. 152. 
Minnesota. G. L. Herrick, Rep. Geol. Surv. Minnesota, vii. pp. 81-123, 
pis. i.-xxi., describes and in many cases figures from original drawings, 
the Entomostraca known as yet to occur in the lakes within a radius of 
ten miles of Minneapolis, arranged after Dana's system. 24 species are 
described : Calanidfe, 2 (both ncAv) ; Cyclopidce, 2 ; Sididcc, 2(1 new) ; 
