190 
CRUSTACEA. 
elongate j lower antenna3 with very long peduncle. H. abyssi and gra'ndi- 
comiSf spp. nn., fjords of Norway : Bock, 1. c. pp. 162 & 153. 
TritropiSf new name for Amphitonotus (Costa, 1861), type Oniscus aculeatus 
(Lepechin, 1778) := Talitrus edwardd (Sabine) ; T. helleri, sp. n., Norway, 
id, 1. c. pp. 168 & 169. 
(Ediceros borealis, sp. n., Greenland and Finmark, id. 1. c. pp. 162 & 163, 
Acanthostephia, g. n. Allied to (Ediceros ; body keeled, posterior abdo- 
minal and postabdominal segments prolonged into long spines. Type, 
Amphithonotus malmgreni (Goes) : id. 1. c. p. 163. 
Monoculodes grubei, longicornis, hroeyeri, packardi, tenuirostratus, tubercu- 
latus, borealis, oxidi latimanus, spp. nn., Norway : id, 1. c. pp. 165-169. 
Halimedon, g. n. Allied to Monocidodes, carpus of 1st and 2nd pair of feet 
elongate. H. (^(Ediceros') brevioalcar (Goes), and moelleri, saussurii, and 
longimanus, spp. nn., id. 1. c. pp. 169 & 170. 
Pontocrates, g. n., = Krceyeria (Sp. Bate, partini) ; feet of 1st pair very strong, 
those of 2nd with a very long cheliform hand. Kroeyeria norvegica (Sp. 
Bate) and haplocheles (Grube, 1864) = Icevicarpa (Sp. Bate, 1869) ; id. 1. c. 
pp. 171 & 172. 
Ealicrion, g. n. Allied to (Ediceros ; maxillipeds with yery small laminae 
and very long palpus. H. longicaudatus, sp. n., Norway, id. 1. c. p. 173. 
Paramphithoe parva, sp. n. Norway, id. 1. c. p. 177. 
Acanthozone, new name for Acanihosoma (Owen), type Oniscus cuspidatus 
(Lepechin, 1778) = Acanihosoma hystrix (Owen), id. 1. c. p. 184. 
Dexarnine heibergi, sp. n., Norway, id. 1. c. p. 187. 
Lampra, g. n., allied to Dexarnine, for Atylus gibbosus (Sp. Bate), id. 1. c. p. 188. 
Atylus nordlandicus, sp. n., Nordland, Norway, id. 1. c p. 193 j A. falcatus, 
Metzger, xxi. JB. Ges. Hann. p.28, German Sea, E. Friesland, 22 fath. : spp.nn. 
Pontogenia, g. n., for Atylus inermis (Kroyer, Sp. Bate), Bock, 1. c. p. 194. 
Halirages, g. n., for Atylus bispinosus (Sp. Bate), Amphithoe fulvocincta 
(Sars), and H. borealis, sp. n., Norway, id. 1. c. pp. 194-196. 
Amphithopsis malmgreni and longimana, spp. nn., Norway, id. 1. c. pp. 
199 & 200. 
Clidippides, g. n., for Dexarnine tricuspis (Kroyer, Sp. Bate), id. 1. c. p. 201. 
Laothoes, g. n. 3rd joint of mandibular palpus very broad, equal to half 
length of 2nd. L. meinerti, sp. n., Norway, id. 1. c. p. 202. 
Gammarus lacustris, sp. n.. Smith, Am. J. Sc. (3) ii. p. 453, Lake Superior. 
Elasmopus latipes, sp. n., Christiania- fjord, id. 1. c. p. 212. 
Melphidippa, g. n., for Gammarus spinosus (Goes), and M. longipes and bo- 
realis, spp. nn., Norway, id. 1. c. pp. 218 & 219. 
Ampelisca assimilis, dubia, and propinqua, spp. nn., Norway, id. 1. e. pp. 222, 
224, 225. 
Haploops setosa, sp. n., Bergen, Norway, id. 1. c. p. 228. 
Byblis, g. n., for Ampelisca gaimardi (Kroyer) j 3rd joint of mandibular 
palpus much shorter than 2nd : id. ibid. 
Goesia, g. n. Allied to Leptochirus j body subdepressed, flagellum of upper 
antennae obsolete, 2nd pair of feet stronger but not much longer than 1st. 
Autonoe depressa (Goes), Spitsbergen, id. 1. c. p. 231. 
Photis luetkeni, sp. n., id. 1. c. p. 233. 
Xenoclea, g. n. Allied to Microprotopus ; upper antennae with 3rd joint of 
the peduncle elongate, without accessory flagellum ; last pair of saltatory feet 
2-branched. X. batii, sp. n., Norway, id. 1. c. pp. 234 & 235. 
