Dr. A. Giinther on a new Species of Callionymus. 197 
the palatine bones cannot be ascertained, on account of the dry 
state of the specimen. The snout is short, not much longer 
than the eye, the diameter of which is one-sixth or one-seventh of 
the length of the head. The eye is situated immediately below 
the upper profile of the head ; the nostrils are close together, mid- 
way between the eye and the extremity of the upper jaw. Inter- 
orbital space flat, its width being contained thrice and three-quar- 
ters in the length of the head. Cheek very flat and broad, entirely 
covered by the two posterior infraorbital bones, which extend 
downwards and backwards to the limb of the preoperculum ; 
they are finely striated, like the operculum. Operculum more 
than twice as high as long, with the posterior margin rounded 
and continued into a broad membranous strip. Sub- and 
inter-operculum very small. The course of the muciferous 
channels through the bones of the head is indicated by a num- 
ber of oblong cavities closed by membrane. 
The dorsal fin is placed above the hind part of the anal, ter- 
minating at no great distance from the caudal; its anterior rays 
are short, and increase in length to the twelfth, behind which 
the rays again become shorter. Caudal fin rounded; anal of 
the same height as the dorsal, the rays about the twenty-fourth 
being the longest. The first pectoral ray is exceedingly strong, 
compressed, and nearly as long as the head ; however, it does 
not extend to the very short ventral fin, the base of which cor- 
responds to the eleventh scale of the lateral line. 
The scales are very large, higher than long, with the exposed 
surface minutely granulated, and with a network of fine channels 
over the inner surface, the meshes being concentrically arranged 
round a larger mesh in the middle. Each scale of the lateral 
line is pierced by a single large elliptical hole. 
The entire body is finely dotted with brown ; vertical fins and 
opercular membrane with small whitish spots. 
XXII.—Description of a new Species of Callionymus from 
Austraha. By Dr. ALBERT GUNTHER. 
Callionymus Papilio. 
Tuts species belongs to the group with the gill-opening reduced 
to a small foramen on the upper side of the neck, and with the 
lateral line single. 
Wedane7, wAl.i6.1 Clk 
Preopercular spine considerably shorter than the head, bifid 
at its extremity, both poimts being directed upwards. The rays 
of the vertical fins long, those of the second dorsal longer than 
those of the first, and nearly equal in length to the middle caudal 
