GANOIDEI. 
85 
also found in tlie Nile. Therefore the author confirms the con- 
clusion regarding the affinity of the fish-faunas of these rivers^ 
which had been arrived at by the Recorder several years ago. 
The paper is illustrated by a number of very well executed plates. 
Singapore. Dr. Steindachner reports on a collection con- 
taining 64 species. SB. Ak. Wien, lx. 1870, pp. 557-571. 
Bunnah. Mr. Day describes 5 new or imperfectly known 
species from Burmah, P. Z. S. 1870, pp. 99-101 (see Zool. Re- 
cord, vi. p. 128). 
Andaman Islands, Mr. Day has collected, during a stay of 
.about four weeks, 255 species of fishes, P. Z. S. 1870, pp. 677- 
705. Those described as new will be mentioned subsequently. 
PALiEICHTHYES. 
A GANOIDEI. 
I Mr. Krefft has made the most important discovery that 
{representative of Ceratodus, a ganoid genus hitherto believed to 
jbe extinct, is still living in rivers of Queensland. A compa- 
rison of the teeth with those of the fossil C. runcinatus proved 
the generic identity. Gunther, Fish. viii. p. 323. 
Mr. Krefft has given an account of its external characters in 
P. Z. S. 1870, pp. 221-224 (with woodcuts), in a paper entitled 
" Description of a gigantic Amphibian allied to the genus Lepi- 
\dosiren, from the Wide-Bay district, Queensland.^^ The species 
I is named (7. forsteri. [On its anatomy and place in the system, 
I see Ann. & Mag. Nat. Hist. 1871, and Proc. Roy. Soc. 16 March, 
U871, p. 377.] 
Acipenser. Dr. Giinther describes 19 apparently well-established species 
(Fish. viii. pp. 333-344), and mentions the names of 10 others ; he regards 
A. Uopteltis as a new species from the Mississippi (p. 341). 
Prof. A. Diim^ril (Ichth. g^ner. ii. pp. 90-268) adopts 6 subgenera [see 
Zool. Record, v. p. 170], and describes 6 European and 37 North- American 
species of Huso, 6 species of Acipenser^ 8 European and 14 North-American 
species of Antacem^ 7 species of Sttrletus^ 1 of Lioniscus^ and 1 of Helops ; 
altogether 80 species, the majority of which are named by the author ! The 
heads of several are figured on pis. 16-20. 
Polyodon gladius figured by Dum^ril, Ichth. g6n^r. ii. pi. 19. fig. 3. 
Pohjpterus. Dr. Giinther states that there is only one species of Polypterus 
(bichij^, Fish. viii. p. 326. — Prof. Dumdril acknowledges 4 species, Ichth. 
g^n^r. ii. p. 391, pi. 23. 
Prof. Traquair has worked out the cranial osteology of Polypterus., Joum. 
Anat. h Physiol, v. 1870, pp. 166-183, pi. 6. 
Calamoichthys calaharicus. Described by Traquair, .1. Dubl. Geol. Soc. 
1870, June 8j figured by Dumeril, Ichth. gener. ii. pi. 24. 
Lepidosteus. Dr. Giinther recognizes only .3, or perhaps 4 species. Fish, 
viii. pp. 328-331. — Prof. A. Dumeril regards these species as generic types, 
