PLEUR0NECT01DEI_, PHYSOSTOMI. 
95 
PLEURONECTOIDEI. 
’ H. E. Sauvage has found that the various degrees of deve- 
lopment of the termination of the vertebral column in the 
genera Rhombus , Solea, and Pleuronectes are in accordance with 
their geological appearance. Comp. Rend. 1872, April 22. 
Pseudorhombus muellerij sp. n., lOunzinger, Arch. f. Nat. 1872, p. 40, South 
Australia. ^ / 
Rhomhosolea. Rhomhosolea hassensis and Fleur 07iectes (?) victorioi are new 
names given by Castolnau to lishes, probably belonging to this genus, from 
Melbourne. Proc. Zool. Soc. Victor. 1872, pp. 1G7, 1G8. 
PHYSOSTOMI. 
SiLURID/E. 
Silurus giants, var. aralensis, described by Kessler, N. Mdm. Mosc. x. 
1872, p. 4. 
Bagrus ussuriensis, sp. n., Dybowski, Verb. z.-b. Ges. Wien, 1872, p. 210, 
Amur. 
Platystoma gigas, sp. n., Gunther, A. & M. N. H. 1872, x. p. 449, R. Hu- 
allaga. 
Erethistes pusillus=Hat'a buchanani (Blyth). Day, P. A. S. B. 1872, 
p. 122. 
Doras. Mr. Cope (Proc. Ac. N. Sc. Philad. 1871) figures D. pectinifrons, 
pi. 3 ; and describes as new species from the Amazons D. grypus, p. 270, 
pi. 15. fig. 1 ; D. brachiatus, p. 270 ; Zathorax (g. n.) monitor, p. 271, pi. 4. 
fig. 1 ; Physopyxis (g. n.) lyra, p. 273, pi. 5. fig. 1. 
CallichfJtys. Mr. Cope (1. c.) describes the following as now species from 
the Ambyiacu River: — C. melampterus, p. 275, pi. 14. figs. 4 & 5; Dianema 
(g. n.) longibarbis, p. 27G, pi. 7. fig. 1 ; Bt'ocliis (g. n.) ceerideus, p. 277, pi. 7, 
fig. 2 ; Brochis dipterus, p. 278, pi. 9. fig. 3 ; Cory dor as semiscutatus, p. 280, 
pi. G. fig 1 ; Corydoras ambiaciis, p. 280 ; Corydoras trilineatus, p. 281, pi. G. 
fig. 2; Corydoras acutus, p. 281 ; and Corydoras amphibelus, p. 282. 
Plecostomus scoptdarius noticed as a new species from the R. Amazon by 
Cope, 1. c. pp. 65, 28G ; and Plecodomus biseriatus described as a second new 
species from the same river, ibid. p. 285, pi. 16. 
Liposarcus varius, sp. n.. Cope, 1. c. p. 286, Ambyiacu River. 
Clusiostomus. Mr. Cope (/. c.) describes as new species from the Ambyiacu 
River: — C. alga, p. 287, pi. 15. fig. 3; C. molacops,^. 287, pi. 6. fig. 2; C. 
variolus, p. 288 ; C. tectirostris, p. 288, pi. 15. fig. 2 ; and C. sericeus, p. 288. 
Otocinclus, g. n.. Cope, 1. c. p. 283. Allied to Ilypoptopoma, but with the 
posttemporal region pierced with numerous foramina. — O. vestitus, sp. n., pi. 4. 
fig. 2, Ambyiacu River. 
Pariolius, g. n.. Cope, 1. c. p. 289. Allied to Trichomycterus, but without 
nasal barbel, with one maxillary and two lateral mentals. — P, armillatus, 
sp n., from the Ambyiacu River. 
Cyprinid^. 
Mr. F. Day has published the fourth and fifth parts of his 
Monograph of Indian Cyprinidse.” J. A. S. B. 1872, pp. 1- 
