4 Crust. 
CRUSTACEA. 
form of free- swimming larva (Nauplius) in others ; and on the origin 
and formation of the nerves, eyes, and some internal viscera. He states 
that the three pairs of mobile appendages in the NaupUus-stsLge of the 
Cirripeds, are homologous v/ith the eyes and two pairs of antennae, not 
antennae and mandibles, as had been thought by other authors, and that 
the small pair of filamentary appendages seen on each side of the eye in 
the same Nauplius is homologous with arm-like appendages in the pupa- 
stage of the same Cirripeds, and with the stalk of the adult, and also 
with the peduncular appendage in the larva of Caligus. P. R. Soc. xxiv. 
pp. 376-379, and Ann. N. H. (4) xviii. pp. 174-177. 
The same author gives a condensed account of the morphology of the 
dermal skeleton of the Crustacea, discussing the division into cephalon, 
poreion, and pleon, the constituent parts of the carapace in the larva and 
the adult, its regions, &c. Rep. Br. Ass., 45th meeting, pp. 41-53, with 
2 pis. 
Some observations on the brain (supra-pharyngeal ganglion) of 
Astacus fluviatilis, its resemblance to that of ih.Q Insecta, and the method 
of preparing it, by M. J. Dietl, Z. wiss. Zool. xxvii. pp. 509-512, 
pis. xxxvii. fig. 24, xxxviii. figs. 25 & 26. 
The general structure of the Gammaridce, with special reference to 
the organs of sense, is discussed byP. de Rougemont \_supra] pp. 6-2G. 
Contributions to Faunas. 
1. Land and Fresh-water Crustacea. 
Holland. A list of all known species by R. T. Maitland, Ned. T. D. 
i. (1875), pp. 228-270. 
Carinthia. R. Latzel enumerates the Decapod {Astacus fluviatilis), 
1 Amphipod, and 5 Isopods, JB. Mus. Karnt. xii. pp. 110-112. 
Russia. 50 species of the order Cladocera enumerated, some new, 
with critical and descriptive notes by A. Hudendorff, Bull. Mosc. 1. 
pp. 26-21, pi. ii. 
LaTce Titicaca. 7 new species of Allorchestes are the only Crustaceans 
found ; they occur at 10-66 fathoms ; near the lake a knowp species of 
Allorchestes and one of Cypris occur. Faxon, Bull. Mus. C. Z. iii. 
pp. 361-375. 
Tiistan d'Acunha. A species of Oniscus and one of Gammarus, every- 
where under stones; WiLLEMOiis-SuiiM, P. R. Soc. xxiv. p. 585. 
New Zealand. New Isopods by Miers, Ann. N. H. (4) xvii. 
pp. 225-227. 
General observations on the Crustacea inhabiting caves and deep 
wells by P. de Rougemont, in Fauna der dunkeln Orte \suprd, p. 2], 
pp. 6, 9, & 10. Gammarus puteanus, Koch, and a distinct species of 
Asellus [see infra'] live in the depths of the Lake of Geneva and Neu- 
chatel ; id. Naturges. Gamm., &c. [sa^rd], p. 3. 
