13 4 
ICHTHYOLOGY 
TENNODON SALTATOR. 
Scomber Saltator, Bl. Schn., p. 35. 
Large specimens, one near sixteen inches long, and the 
other twenty-two ; they also bear in Western Australia the 
name of Skip Jack. 
ELEOTRIS OBSCURUS. 
In division, " snout of moderate length ; head as in Gobius ; 
no black spot on the root of the pectorals." Prseoperculum 
without a spine ; head large and broad ; its length being four 
times in the total length of the fish ; the space between the 
eyes is contained four times and two-thirds in the length of the 
head ; the orbit in its greatest breadth is six times in the total 
length ; the head is naked ; some elevated longitudinal lines are 
seen on the prseoperculum. The lower jaw is rather longer than 
the upper one ; the teeth are small and disposed on each jaw 
in numerous rows ; the throat is very much inflated ; the 
body is narrower than the head ; the cleft of the mouth is 
rather oblique; there are thirty-seven or thirty-eight scales 
on the lateral line, and eleven on the transverse one ; these 
scales are ciliated on the edge, and entirely striated longi- 
tudinally. 
First dorsal with nine rays ; second dorsal with nine ; anal 
with eight ; these two last fins are high, and their rays are 
rather longer than the others ; the ventrals and pectorals are 
of the same length, and end a little before the posterior root 
of the first dorsal ; the last have thirteen rays ; the caudal is 
contained five times in the total length; it is elongated, rounded, 
and formed of fourteen rather long rays and of several shorter 
ones. 
The colour of the specimen, after preservation in liquor, is 
a dark brown. The largest specimen is a little over three 
inches long. 
ATHERXN IC HTH YS EDELENSIS. 
Very nearly allied to A. Modesta Cast., but body more 
elongate ; its height being contained near seven times in the 
total length, or six times and a-quarter in the same length 
