19 Pisces. 
PISCES. 
pseudobranchisB. I. maculata, sp. n., Macleay, P. Linn. Soc. N. S. W. 
iii. p. 34, pi. iv. fig. 3, King George^s Sound. 
Bathydraco, g. n. Body elongate, subcylindrical ; tail tapering ; head 
depre.ssed, with the ynout ranch elongate, spatulate ; mouth wide, hori- 
zontal, with the lower jaw prominent ; eyes very large, lateral, close to- 
gether ; scales very small, embedded in the skin ; lateral line wide, con- 
tinuous ; one dorsal fin ; ventrals jugular ; lower pectoral rays branched ; 
teeth in the jaws in villiform bands, none on the vomer or the palatine 
bones ; opercles unarmed ; ten branchiostegals ; the gill membranes free 
from the isthmus, and but slightly united in front ; air-bladder, none. 
B. antarcticus, sp. n., Gunther, Ann. N. H. (5) ii. p. 18, Heard Island. 
Percis filamentosa, sp. n., Steindachner, SB. Ak. Wien, Ixxviii. Abth. i. 
p. 386, Singapore. 
Opisthognathus darwiniensis^ sp. n., Macleay, P. Linn. Soc. N. S. W. ii. 
p. 355, pi. ix. fig. 3, Port Darwin. 
, Pedtculati. 
Himantolophus. An account of this remarkable genus, hitherto im- 
perfectly known, being based on the single specimen of H. grce^landicus 
noticed by Reinhardt in 1837. A second example of the genus, H. rein- 
hardti, sp. n., p. 320, pis. i. & ii. figs. 1-3, Arctic. Liitken, Dan. Selsk. 
Skr. (5) V. 
Ceratias holboelli, Kr. : description of its skeleton ; id. 1. c. p. 326. 
Liitken’s memoir contains also some general remarks upon the Pedi- 
culati. 
^gceonichthySf g. n. Head and body excessively large, broad, and 
depressed ; tail very short ; mouth exceedingly wide and vertical ; supra- 
orbital bones produced into heavy ridges, divergent posteriorly, covered 
with the common skin, and terminating in a strong small spine directed 
upwards ; between ridges a deep groove, in which is situated overhead a 
compound appendage, capable of movement in an almost universal 
manner, and wdth a thick, pear-shaped, muscular base, bony shaft, sur- 
mounted with a semispherical cap,sular gland, from the back and upper 
margin of which arise one simple, one double-branched, and two com- 
pound-branched fleshy tentacles, terminating at free ends of branches 
in white shining vermiform tips ; the front of the capsular gland is 
covered with a silvery or nacreous integument, wdth aperture in centre 
connected with interior, and surrounded with a black ring; body and 
tail armed with broad-based conical spines, ending in fine points; one, 
short dorsal and short anal, each terminating close to caudal, and placed 
far back ; pectorals small, and but imperfectly pediculated ; teeth in 
both jaws very numerous, in various rows, and of unequal lengths, they 
are slightly recurved, flat, sharp-pointed, with cutting edges, moving 
freely in socket when pressed in direction of interior of mouth, but 
perfectly rigid in opposite direction ; the teeth in pharynx short and 
recurved, and in clusters on branchiostegals ; gill-openings in axillm, and 
partly on under surface of body. A. appeli, sp. n., F. E. Clarke, Tr. N. 
Z. Inst. X. p. 245, pi, vi.. New Zealand. 
