PISCES. 
155 
with Leptecheneis {E. nducraies) and Phthcirichthys {E. Kneatus). In the 
same paper he expresses his opinion that E. holbrookii (Qthr.) should be 
named E. alhicauda (Mitch.), and E. scutata (Gthr.) E. australis (Benn.). 
Proc. Acad. Nat. Sc. Philad. 1864, p. 69. 
M. Guichenot, in Maillard, Notes siir Tile de la Reunion, App., describes 
three specimens of Echeneis from Bourbon under the names of E. remeligo 
(A. Bum.), p. 17, E. horhoniensis (sp. n.), p. 19, and E. lophioides (sp. n.), p. 20. 
[The two former are probably E. remora^ and the third does not appear to 
differ essentially from E. clypeata.'] 
Trachinid^e. 
Latilus. Dr. Cooper describes a fish from the coast of California, belong- 
ing to this genus, under the name of Dekaya anomala. Proc. Calif. Acad. 
Nat. Sc. iii. p. 70, fig. 17. It is very similar to Latilus princeps (Jenyns), 
and its differences from this species will have to be pointed out. It has severi^ 
dorsal spines. 
V Sillago schomhurgkii, sp. n., Peters, Monatsber. Acad. Wiss. Berl. 1864, p. 391, 
from Adelaide. 
Batrachid^. 
/ Thalassophryne. Dr. Giinther has described a second species 
/ of this genus, Th. reticulata, from the Pacific Coast of Panama 
(Proc. Zool. Soc. 1864, p. 150). On examining this fish, he 
discovered a most singular apparatus, which structurally is as 
perfect a poison-organ as that of the venomous serpents ; it is 
equally developed in both species, Th. reticulata and Th. macu- 
losa. Each operculum terminates in a long spine similar to 
the two dorsal spines ,• each spine is perforated at the extremity 
and at the base, and has a canal in its interior. The canal 
leads into a sac at the base of each spine, in which a considerable 
quantity of the poisonous substance was found ; on the slightest 
pressure it flowed freely from the opening of the spine. The 
sacs are not the secretory organ, hut merely the reservoirs in 
which the fluid secreted accumulates. The author believes he 
has found evidence that the real organ of secretion is the 
system of muciferous channels, or at least some portion of 
it. Proc. Zool. Soc. 1864, p. 155. 
Batrachus didactylus. Prof. Nilsson justly maintains that this species 
occasionally reaches the Scandinavian seas. GEfvers. Svensk. Vetensk. Akad. 
Forhandl. 1864, p. 602. 
Pediculati. 
V Melanocetus is a new genus of fish from the Sea of Madeira, discovered by 
Mr. Johnson, and described by Dr. Gunther, Proc. Zool. Soc. 1864, p. 301. 
Head and gape of enormous size; body and tail short; belly pendent as a 
large, thin sac. Ventral fins none. Teeth of the jaws and palate long, 
pointed, unequal in size. M.jolinsomi, pi. 26, a deep-sea fish, inhabiting the 
same horizontal marine zone as Saccopharynx and Alepidosaurus. 
Antennarius leopardinus, Giinther, Proc. Zool. Soc. 1864, p. 161, from the 
