390 REPORT OF NEW JERSEY STATE MUSEUM. 
usually small. Lateral line usually present, extending on caudal, 
sometimes duplicated or wanting. Dorsal long, continuous, of 
soft rays only, beginning on head. Anal similar, shorter. Caudal 
various, sometimes coalescent with dorsal and anal. Pectorals 
inserted rather high, rarely wanting. Venttals under pectorals, 
usually of several soft rays, one of them sometimes wanting. 
Fishes of the sand bottoms of all seas, some ascending rivers, 
and carnivorous. Many are important food-fishes. 
Key to the genera. 
a. BorHina:. Ventrals unsymmetrical, dissimilar in position and usually 
in form, ventral of eyed side being extended along ridge of abdomen; 
eyes and color on left side. 
b. Lateral line with distinct arch in front, vomer with teeth. 
LOPHOPSETTA 
bb. Lateral line without arch in front, vomer toothless. ETROPUS 
aa. Ventrals symmetrical, similar in position and in form of base, ventral of 
colored side not extending along ridge of abdomen. 
c. HippocLossina. Mouth nearly symmetrical, dentition nearly 
equally developed on both sides; gape usually, but not always, 
wide. 
d. Body comparatively elongate; caudal lunate; dorsal rays 100; 
anal 8s. HIPPOGLOSSUS 
dd. Body broader; caudal double truncate or rounded; dorsal 
rays fewer than 95; anal fewer than 75. PARALICHTHYS 
cc. PLEURONECTIN”. Mouth unsymmetrical, jaws on eye side with 
} nearly straight outline, bones on blind side strongly curved; 
teeth chiefly on blind side. 
e. Lateral line with a distinct arch in front; scales imbri- 
cated, rough ctenoid. LIMANDA 
ee. Lateral line without distinct arch in front, scales regularly 
imbricated, all om eyed side ctenoid in both sexes. 
PSEUDOPLEURONECTES 
Genus LopHopsErta Gill. 
The Window Panes. 
Lophopsetta maculata (Mitchill). 
PLATE 85. 
Window Light. Spotted Turbot. Sole. Spotted Flounder. 
Sand Flounder. 
Head 314; depth 1%; D. 65; A. 50; V. 6; scales 100 above 
course of lateral line to base of caudal; mandible 2 in head; 
