24 Pisces. 
PISCES. 
NOTOPTERlDiE. 
Notopterus (Xenomystus) nili, sp. n., Steindachner, SB. Ak. Wien, 1881, 
p. 196, pi. iv. fig. 2, Nile. 
Gymnotidje. 
Sachs, C., & du Bois Reymond, E. Untersuchungen am Zitteraal, 
Gymnotus electricus. Leipzig; 1881, 8vo, 446 pp. 8 pis. 
Sternarchus schotti, Stdchr., figured by Steindachner, Denk. Ak. Wien, 
xliii. pi. ii. fig. 2. 
Sternarchus macrolepis^ sp. n., id. Anz. Ak. Wien, 1881, p. 98, 
Amazons. 
S. {Rhampho sternarchus') muelleri^ sp. n., id. 1. c. p. 99, Pard. 
Sternopygus obtusirostris, sp. n., id. Denk.,Ak. Wien, xliii. p. 143, pi. ii, 
fig. 3, Amazons. 
Symbranchid^. 
WeyenbePvGH, H. Ueber den Kiemenapparat der Symbranchidce. Zool. 
Anz. iv. pp. 407-409. 
Mor,®’nidjs. 
* Anguilla vulgaris. C. Robin describes the sexual differences of the 
common Eel ; C. R. xcii. pp. 378-383. Translated in Ann. N. H. (5) vii. 
s^p. 386-392. 
Goode, G. B. Notes on the Life-history of the Eel, chiefly derived 
from a study of recent European authorities. Bull. U. S. Fish. 
Comm. 1881, pp. 71-124. 
0. Hermes gives an account of the male organs of Conger vulgaris, 
and also remarks on the mAQ Anguilla vulgaris. Zool. Anz. iv. pp. 39-44, 
with woodcuts. Translated in Bull. U. S. Fish. Comm. 1881, pp. 126-130. 
Brock, J. Untersuchungen fiber die Geschlechtsorgane einiger Murse- 
noiden. MT. z. Stat. Neap. ii. pp. 415-494, pis. xviii.-xx. 
These researches have been made on Murcena helena, L., Myrus vulgaris, 
Kaup., Conger vulgaris, Cuv., and Anguilla vulgaris, Flem. 
Nemichthys avocetta, sp. n., Jordan & Gilbert, P. U. S. Nat. Mus. iii. 
p. 409, Puget Sound. 
Murcenichthys australis, sp. n., Macleay, P. Linn. Soc. N. S. W. vi. 
p. 272, Port Jackson. 
Myrophis chrysogaster, sp. n., id. 1. c. p. 271, Port Darwin. 
Gymnothorax mordax (Ayres), described by Jordan & Gilbert, l.c p. 30 
[1880], 
LOPHOBKANCHII. 
Ryder, J. A. A Contribution to the Development and Morphology of 
the Lophobranchiates ; Hippocampus antiquorum. Bull. U. S. Fish. 
Comm. 1881, pp. 191-199. 
