62 
ICHTHYOLOGY 
GLYrTAUCHBN PANDURATUS. 
Apistus Panduratus ; Rich. Proc.Zool. Soc, 1850, p. 58 r 
pi. 1, % 3. 
Glyptauchen Panduratus, Gunther Cat, vol. ii., p. 121. 
D 17/7. A 3/6. C 11/ (long rays). V 1/6. P. 13. 
The head is almost rounded, and seen laterally appears to be 
joined to the body by a sort of neck. The suborbitary are 
sharp and spiny ; over the nostrils there is a sort of foliated 
flap ; on the upper surface of the head there are two strong 
ridges, which diverge backwards in form of an angle; in front of 
the eyes there is a deep transverse sulcate, which divides the 
longitudinal ridges in two parts ; the first being short, 
and rounded in front The prseorbital has two points; 
the external of which is strong and obtuse, and the internal 
very long, arched, and attains to the third of the orbit. 
The prseoperculum has two very short spines (the upper one 
twice as long as the other), and three shorter ones ; these 
latter are on its inferior edge. On the operculum there is 
an upper limb, which has numerous very strong ridges and 
spines, 
The head is very broad behind, being in this part more 
than twice the width it has in front of the eyes ; it can be 
said that it is compressed in front and depressed behind. 
The body is covered with rather small scales, which do not 
extend over the anterior half of the back ; this part presents 
the appearance of a very ruguous skin. The lateral line is. 
straight, and extends to the centre of the tail up to the insertion 
of the caudal ; it is formed of a succession of ridges disposed 
rather obliquely. 
The dorsal is very high ; its height being equal to two- 
thirds the one of the body; it has two portions, but [con- 
tinuous ; the first is rounded and formed of seventeen strong 
spines, the anterior ones being shorter, as also the posterior 
ones ; the second is short, but much higher than the endj of 
the first, and is formed of seven rays ; this part extends over 
the base of the caudal ; the length of the second dorsal is 
not one-fifth the on© of the spinous part. The caudal is long, 
