CRUSTACEA. 
603 
of the egg-cells. An abstract of these papers will also be found 
in the Quart. Journ. Microsc. Scienc., January 1870, pp. 81-84. 
Dr. Fr. Hilgendorp calls the attention of naturalists to some 
apparatus in the higher Crustacea which seem to be destined to 
produce sounds ; they are crenulated linear ridges in one part 
of the body, chiefly the hands, which, by the usual movement of 
the articulations, are easily brought into contact with exquisitely 
rough surfaces of other parts of the body. Such apparatus are 
described in the genera OcAjpode^ Gelasimus, Sesarma, Matuta, 
and Ccenohita, V. d. Decken, lleisen in Ost-Afrika, iii. p. 70, 
pi. 3. 
Contributions to Faunas. 
1. Europe, 
Cajander enumerates sixty-one species of Crustacea observed by him in 
Finland, among which Astacus Jluviaiilisy Palcemoji squilla, two species of 
MysiSf one Corophium, Idothea entotmn and triciispidata, Icnra alhifronsj 
one Asellus, seven terrestrial Isopods, the rest Daqdmiidai, LynceidcG, Cyprid< 2 y 
Cytheridfc, and Cyclopidcs. We are sorry to learn that the author died during 
the publicatioTi of his essay. Notiser pS. Fauna and Flora fennica, 1869, 
pp. 373-376. 
The occurrence of several Crustacea in the Baltic is mentioned by Nic. 
Saenger in the journal noticed above. At Reval Idotea tricuspidata 
(Desm.) and the genus loira occur at a depth of 6-20 feet j species of Cran^ 
yoUf Mysis, Oammarus, and Corophium lonyieorne (Fabr.) at about 40 feet; 
Idotea entomon at from 40 to 60 feet. 
The Crustacea of the shores of Pomerania and the island of Riigen are 
enumerated by Prof. Munter. Mittheil. naturwissensch. Vereins von Neu- 
vorpommern u. Riigen, i. pp. 1-4. Almost all the higher systematic divisions 
are represented; thirty-eight genera are enumerated. The marine species of 
Decapods are Carcinus mcenas^ Crangon vulgaris j and Palcemon squilla; of 
Stomapods, Mysis spinulosa and mdgaris ; of Amphipods, Gammartis lo- 
custa, G. nmhidans, Corophium longicorne^ Talitrus saltator, Orchestia euchore^ 
O. gryphus, Leptocheirus pilostis) of Isopods, Idotea entomon at the little 
island Hiddensee, I. tricuspidata and pelagica, Anthura gracilis^ Tanais 
sp. indet, Icera krdyeri, Sjihceroma serratum. The rest are freshwater or 
terrestrial species, and a relatively large number of Branchiopoda^ Cladocera, 
Copepoda^ and Sipho7iostoma, both from sea and fresh water. 
G. O. Sars gives an account of the Crustaceans found by him 
in the Firth of Christiania to a depth of 250 fathoms ; he men- 
tions at the same time some species from other classes, and 
gives a topographical sketch of the localities explored. Ponto- 
philus norvegicus (M. Sars) and Pandalus borealis (Krdy.) are 
.common in about 200 fathoms, Pasiphae norvegica (M. Sars) 
less so at the same depth. Mysidee are common, and repre- 
sented by several new genera; there are also many species of 
Cmnacea. Munnopsis typica (M. Sars) and Eurycope cornuta 
(sp. n.) are the most common at still greater depths, Macro’ 
