390 JOURNAL OF SCIENCE. 
ditions which must obtain on the shores of Kerguelen and Patagonia ; 
the one fact, however, which seeme to militate against such an hypo- 
thesis is the occurrence of Serolis carinata in shallow water as far as at 
San Diego, in California ; this species was described from that lvcality 
by Lockington (Proc. Calif. Acad. Sci, Vol. VII., p. 36), and it is 
the only example ot the genus from shallow water living so far north ; 
for all the other known shallow-water species Lat. 30° 8. is the 
northernmost limit. It must be remembered, however, that a cold 
current from the south sweeps aJong the western shores of South 
America, and the existence of this current has perhaps rendered it 
possible for S. carinata to migrate further to the north than would be 
possible for example on the the eastern shores of the same continent. 
I may conclude by giving a list (complete I hope) of all the known 
species of the genus, with a reference to the first published description ; 
I append also the localities and depths, accurate, where possible, at 
which they occur ; the ‘stations’ referred to are those of ‘“ Challenger ” 
expedition. 
1. Serolis paradoxwa (Fabr.) S. orbignyt (And. and M.E.) Fabricius, 
Systema Entomologia, 1775, p. 296. Patagonia, New 
Zealand (?) ; a few fathoms. 
2. Serolis trilobitoides (Kights.) Trans. Albany Inst., 1833, p. 53. 
Patagonia, South Shetlands ; a few fathoms. 
3. Serolis gaudichaudiw (And. et M..) Hist. des Crust., 1841. 
Chile ; a few fathoms. 
4. Serolis planus (Dana.) Crustacea in United States Exploring 
Expedition, Part II., p. 794. Patagonia; a few fathoms. 
5. Serolis schythe: (Liithen.) Naturh. Foren. bidensk. Med. 
1858, p. 98. Patagonia, New Zealand (?); 5-50 fathoms. 
6. Serolis convexa (Cunningham.) Trans. Linn. Soc., Vol. 
XXVIII, p. 498. Patagonia; a few fathoms. 
27. Serolis acutangula (Grube). Jahresb. Gesells. Schles. -Bres- 
lau, 1871, p. 56. Patagonia (?) (This species is apparently 
not a good one; Grube says nothing ahout it in his subse- 
quently published (1875) Monograph.) 
& Serolis tuberculata (Grube.) Arch. f. Naturg., 1875, p. 227. 
Bass’ Straits ; 38-40 fathoms. 
9. Serolis bromleyana (v. Willemoes Suhm.) Proc. Roy. Soc., 
Vol. XXIV., p. 585. Station 156 (near Antarctic ice 
barrier), 1975 fathoms. Station 164c (near Sydney), 400 
fathoms. Station 168 (East of New Zealand), 1100 fathoms, 
Station 169 (East of New Zealand), 700 fathoms. 
10. Serolis latifrons (Miers.) Phil. Trans. Vol. CLXVIIL., extra 
vol., p. 200. Kerguelen and Crozets; 1-210 fathoms ; 
Auckland Islands. 
11. Serolis septemcarinata (Miers.) = S. ovalis (Studer.) Miers loc. ett. 
Kerguelen, Crozets, Marion Island; 1-150 fathoms. 
12. Serolis carinata (Lockington.) Proc. Acad. Sci. Calif., Vol. 
VII., p. 36. San Diego, California ; a few fathoms. 
13. Serolis serrec (Lucas.) Bull. Ent. Franc., 1877, p. 146. Pata- 
gonia ; a few fathoms. 
14, Serolis cornuta (Studer.) Arch. f. Naturg., 1879, p. 104. 
Kerguelen, Crozets ; 25-120 fathoms. 
