PISCES Bells 
The sole is so characteristic that there is no danger of con- 
fusing it with any other species, it is commonly called English 
Sole, and believed to be identical with Solea vulgaris, but is 
immediately distinguishable by the large rostral hook which 
wholly conceals the mouth on the right side, the long pectoral 
fin with its elongated second ray, the ventral fin arising beneath 
the mouth, and the freer caudal. 
PERCOMORPHI. 
Family SERRANIDAt. 
POLYPRION Cuvier, 1817. 
POLYPRION PROGNATHUS Forster. 
HAPUKA. 
Plate XLIII. 
Perca prognatha Forster, in Bloch and Schneider, Syst. Ichth., 
1801, p. 302. 
Polyprion prognathus Giinther. (See Boulenger, Cat. Fish. 
Brit. Mus., 1895, p. 150, for synonomy). 
Stations 2, 3, 8, 9, 12, 13, 14, 15, 16, 25, 26, 27, 28, 29, 36, 39, 42, 
43, 48, 49, 54, 73, 84, 86, 87, 89, 90. 91, 92, 95. 
Boy: Di xi, 12;°A Gil 9; P17: Vis 5 Ge 14 -E 14. 
Length of head 2.6, height of body 3.3, length of caudal 4.4 in 
the total; diameter of eye 6.1, interorbital space 3.6, length of 
snout 3.4, and of the longest (5th) dorsal spine 2.9 in the head. 
The anal rays are variable in number, ranging from eight to ten. 
Though represented at many Stations, but few 
individuals were usually taken together. On four occasions 
only did the number exceed ten, they were: Station 13, 
47 fishes; Station 15, 20 fishes; Station 16, 14 fishes; 
and Station 27, 17 fishes. As mentioned in the introduction 
(p. 53) large catches of Hapuka were made by means of hand 
lines at the Chatham Islands, and the opinion was ventured that 
these islands would in the future become important fishing 
grounds for the Dominion. 
The stomachs of different individuals yielded examples of 
Clupea neopilchardus, Syngnathus mnorae and species of 
Cephalopods. 
