AMPH1P0DA (GAMMARINA), ISOPODA. 
Crust. 23 
Orchestiid^. 
TaVitrus sylvaticus (Hasw.) described and figured by Haswell, (62) 
p. 95. 
Allorchestes longicornis, A. crassicornis , A. rupicola , A. niger , A. gai- 
mardii, A. australis, id. pp. 95 & 96. 
Neobule algicola (Hasw.), id. p. 96. 
ISOPODA. 
Sars (133) divides the forms investigated by him into 5 tribes:— 
Chelifera ; Flabellfera, in which the posterior pair of abdominal limbs 
and last segment form a more or less distinct caudal fan, including the 
famm. Anthuridce , Anceidce, Cymotlioidce (including AEgidce and Ciro- 
laniclce ), Serolidce , and Sphceromiclce (including Limnoriidce ); Valviferci, 
distinguished by the last pair of abdominal limbs or caudal appendages 
arching over the other pairs, and modified as valvular flaps, so as to leave 
the rest in a spacious cavity covered above by the scutiform terminal 
segment, containing Arcturidce and Icloteidce ; Asellota, in which no such 
modification occurs, and the abdominal limbs are never natatory, including 
the famm. Aselliclce and Munnopsiclce ; Epncaricles (M.-Edw.), hitherto 
classed with Cymothoidce, regarded by F. Muller as most approaching 
Oniscoidea, consisting of the genn. Bopyrus, Dajus , Entoniscus, 
Cryptoniscus, etc. 
Anceime. 
Anceus stygius (Sars.), Sars, (133) p. 85, 658-1215 fath.; A. hirsutus , 
sp. n., id. p. 92. A. robustus , sp. n., id. p. 94. 
Anceus ( Praniza ) torpedinis , sp. n., Walter (156), in spiracles of a 
Torpedo from Ceylon. 
APSEUDIDiE. 
Sphyrapus (Norman, MS.), distinct from Apseudes by absence of 
squamiform appendage on second antennas, possession of rudimentary 
exopodite on chelipeds only ; now includes S. tucles , S. malleolus 
(Norman), S. anomalus — Apseudes anom. (Sars.), and S. serratus , sp. n., 
Sars, (133) p. 66, 1333 fath. 
Arcturjd^. 
Arcturus bajjini, Sars, (133) p. 97, = Iclotea bciffini (Sabine) = A. tuber- 
culatus (Latreille). A. tuberosus , sp. n., id. p. 102 = A. baffini var. 
feildeni (Miers), off Norway, 412 fath. A. hystrix, sp. n., id. p. 104. 
Astacilla (Fleming) = Leachia (Johnston), A. granulata, sp. n. ; 
Sars, (133) p. 107, Arctic. 
