PISCES. 
183 
Ilr. Malmgren (Wiegm. Arch. 1804) ; on the whole he agrees with ISlag. 
Widegren, that the Scandinavian species are more numerous than has been 
hitherto suppposed, and that their synonymy is much confused ; the species 
as distinguished by Mag. Widegren are adopted, excepting in one instance 
where two have been confounded; all the species are described: C. lava- 
(L.), p. 322; C, oxyrhynelius (L.), p, 323; (?. (Bl.), p. 324; C. 
widegreni, sp. n., p. 325, from the lakes Ladoga and Wetter; C. nilssotiii v 
(Val.), p. 326; C. alhula (L.), p. 327; C. megalops (Widegren), p. 349; C. 
pacliycephaluSf sp. n., from Lake Ladoga, is only mentioned, not described, 
p. 350. 
Percopsis hammondii, sp. n., Gill, Proc. Acad. Nat. Sc. Philad. 1864, p. 151, ^ 
from Kansas. 
Clupeid^. 
Hr. Malmgren (Wiegm. Arch. 1864, p. 341) enumerates the following spe- 
cies as occun’ing on the Finnish coasts: — Cl. sprattus, on the southern and 
south-western coasts ; Cl. harengus^ on the northern coasts ; Cl. harenguSy 
var. membi'as, commonly called Stromling,” in the White Sea and in the 
Gulfs of Bothnia and Finland ; a larger variety of the Stromling,” perhaps 
a distinct species, on the southern and western coasts. 
Ilarengula sptlura, sp. n., Guichenot, in Maillard, Notes sur File de la 
union, App. p. 16, from Bourbon. 
Scleropages is the name of an Australian genus of fishes, described by 
Dr. Gunther in Ann. & Mag. Nat. Hist. 1864, xiv. p. 195, closely allied to, or y 
identical with, the Bornean Osteoglossum. Scl. leichardti, sp. n., p. 196, pi. 7, 
from Queensland. 
SCOMBERESOCES. 
Exoccetus californicusy sp. n., Cooper, Proc. Calif. Acad. Nat. Sc. iii. p. 93, 
fig. 20. 
Mur^nid^, 
Dr. Bleeker, simultaneously with the fourth volume of his 
great work, containing the Eels, has published a revision of the 
systematic arrangement and of the synonymy of this family 
(Nederl. Tydschr. Dierk. 1864, p. 113). This new arrangement 
differs considerably from that proposed by Dr. Kaup, as regards 
the divisions aiid subdivisions ; quite a large number of genera 
established by the latter gentleman have been rejected by Dr. 
Bleeker, who, as we stated above, is in the habit of creating 
genera in the most liberal manner. The Sy7nbranchid(2 are 
excluded as not being true Eels. As the Atlas Ichthyolo- 
gique’ contains the most complete view of the subject, we give the 
following abstract from this work, without referring to the 
memoirs mentioned. All the species described, 132 in number, 
are beautifully illustrated. 
I. Anguilloidei, with the genus Murana=i Anguilla (auct.). 
H. Synaphobhanchoidei, with the genus Synajdiobranchus (Johns.). 
HI. Ptyobranchoidei, with three genera: Moringua (Gray)= 
