200 WAITE 
aa. Eyes on the right side. 
e. Two ventral fins, scales wholly imbricate. 
d. Ventrals separate from anal, scales 
eycloid 4 et oe 
dd. Right ventral connected with the 
anal, scales ctenoid. 
e. Snout normal, dorsal fin 
commencing over the eye..  Pelotretis. 
ee. Snout produced over the 
mouth, dorsal fin commenc- 
ing at its tip. 
f. Mouth visible from right 
side, pectoral short and 
rounded a ..  Ammotretis. 
ff. Mouth concealed from 
right side by cutaneous 
extension of rostral pro- 
cess, pectoral long, 
upper ray produced .._ -Peltorhamphus. 
ee. Ventral fin single, connected with the 
anal, scales imbedded non-imbrieate, 
at least anteriorly hrs ix Rhombosolea. 
Brachypleura. 
Flatfishes are occasionally subject to reversal, that is, a right- 
sided Megrim or a left-sided Flounder may be found, but such 
are so very infrequent that the condition is worth recording 
when it does oceur. 
The dimensions recorded under each species are those of the 
specimens described and figured, and are taken from the end of 
the snout to the tip of the middle caudal rays. They are not 
necessarily those of the largest specimens seen. The colouration 
is described from preserved examples and is little guide to the 
fishes in life. 
CAULOPSETTA Gill, 1893. 
CAULOPSETTA SCAPHA Forster. 
MEGcRIM. 
Plate XXXIV. 
Pleuronectes scapha Forster, in Bloch and Schneider, Syst. 
Ichth., 1801, p. 163. 
Platessa? scapha Rich. in Dieffenbach, N.Z. i1., 1848, p. 222. 
Pseudorhombus scaphus Hutton, Cat. Fish. N.Z., 1872, p. 51, 
pl. ix., fig. 82. 
