AMPHIPODA. 227 
ONiSCIDiE. 
Oniscus vicai'ius, Stuxberg, CEfv. Ak. Forh. xxix. 1872, p. 3, more fully 
described, id. op. cit. xxxii. No. 2, p. 60, Newfoundland and Canada ; is 
possibly 0. ajffinis (Say), but the description of the latter is too short for 
recognition. 
Rhinoryctes, g. n. ; antennae 8-jointed ; no special respiratory organ in 
the opercular branch of the caudal feet ; forehead with a prominent up- 
curved median appendage and conical lateral lobes. R. mirahilis., sp. n., 
Stuxberg, 1. c. xxxii. No. 2, p. 51, California. 
Poreellio alho-marginatus^ Verb. z.-b. Wien, xxv. p. 616, pi. xii. 
fig. 7, Syra ; P. formosus, Stuxberg, 1. c. p. 67, California : spp. nn. 
Armadillo tuherculatus^ "V"ogl, 1. c. p. 601, pi. xi. fig. 1, Tinos ; A. spe- 
ciosus, Stuxberg, 1. c. p. 62, California : spp. nn. 
Armadillidium globosum, sp. n., Tinos, morhillosum (C. Koch ?), Dal- 
matia, granulatum (Brandt), Dalmatia, Corfu, and Egypt, guttatum 
(Koch), Dalmatia, astriger\_-eruni\ (C. Koch), Dalmatia and Corfu, fully 
described ; Vogl, 1. c. pp. 606-516, pi. xi. figs. 2-4, and pi. xii. figs. 6 & 6. 
Sph.®romid;e. 
Sphceroma rugicauda (Leach), estuaries of North Sea and Baltic, in 
the former considerably larger ; Metzger, Ber. Unters. Pommerania, 
p. 301. Also in the inlet of Travemiinde, Baltic; H. Lenz, Wirb.' 
Thiere Trav. Bucht, p. 15. 
Sphceroma algoense^ sp. n., Stebbing, Ann. N. H. (4) xv. p. 186, pi. xv 
fig. 3, Algoa Bay. 
Cyclura, g. n. ; inner plate of the uropoda (lateral blades of the ter- 
minal fin) attached to a tooth which projects both forwards and upwards 
from the extremity of the tail (telson), both plates extending beyond 
this tooth, the outer plate folding partially beneath the inner, but ex- 
tending beyond it. C. venosa, sp. n., id. J. L. S. xii. [1874] p. 146, pi. vi. 
Australia. 
Dynamene rubra (Mont.), = viridis (Leach), differing only in colour 
and the broader or narrower form of the body ; variation in the latter 
character, and even partial narrowness in the same individual, is found 
also in D. various and D. montagui\ id. 1. c. pp. 148-151, pi. vii. 
Dynamene eatoni^ sp. n., Miers, Ann. N. H. (4) xvi. p. 73, Kerguelen's 
Island. 
Oymothoid;e. 
^erolis. The known species discussed, and S. tuberculata, sp. n., Bass’ 
Straits, described by Grube, Arch. f. Nat. xii. pp. 208-234 ; the last and 
S. schythii (Liitken) figured, pis. v. & vi. 
Serolis latifrons and septemcarinata, spp. nn. (White, MS., 1847), 
Miers, Ann. N. H. (4) xvi. p. 74, the first from Kerguelen’s and Auck- 
land Islands, the second from Crozet Island. 
ud^ga ^emicarinata, sp. n., id. 1. c. p. 115, Kerguelen’s Island. 
