234 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [10] 
7. Teeth conical, separated, not incisor-like ; scales closely imbricated, 
all strongly ctenoid; mouth comparatively large (approach- 
ing that of Psettichthys); vertebrw (isolepis) 10 + 32 = 
ADA i SA, OS gS ERE Se Seen nee ISOPSETTA, 3C. 
ee. Lateral line with a distinct arch in front; scales imbricated, rough- 
ctenoid ; vertebree (bilineata) 11 +- 29 = 40.LEPIDOPSETTA, 31. ~ 
dd. Lateral line without accessory dorsal branch. 
h. Lateral line with a distinct arch in front; scales imbricated, 
rough-ctenoid ; vertebrie (limanda) 40. ....----.-LIMANDA, 32. 
nn. Lateral line without distinct arch in front. 
i. Scales regularly imbricate, all (on eyed side) ctenoid in both 
sexes; no stellate tubercles on head nor on bases of dorsal and 
anal fins; teeth, incisor-like, close-set ; lower pharyngeals very 
narrow, each with two rows of separate, conical teeth ; fin rays 
pealy £5 3.0. /ahae Ras MEHL wah graben PSEUDOPLEURONECTES, 33. 
ii. Scales imperfectly imbricated, or else not all ctenoid. 
‘j. Scales chiefly cycloid in both sexes; lower pharyngeals small 
and narrow, separate, each with 1 to 4 rows of small, bluntish 
beeth j.j.2 s3oh be ea hoes ean See ae ee PLATESSA, 34. 
jj. Scales rough-ctenoid in the fale more or less cycloid in the 
female (fin rays scaly in the male, naked in the female); lower 
pharyngeals very large, more or less united in the adult, their 
surface somewhat concave, the teeth in five or six rows, large, 
blunt, close-set ; teeth in jaws incisor-like; fin-rays of dorsal, 
and anal without tubercles at base .......----. LIOPSETTA, 35. 
jij. Seales all in both sexes and on both sides of the body repre- 
sented by coarsé scattered stellate tubercles; similar tubercles 
between bases of dorsal and anal rays; lateral line without 
scales; lower pharyngeals broad, each with three rows of blunt, 
coarse teeth ; teeth incisor-like..-........... PLATICHTHYS, 36. 
aa, Vertebre in increased number (varying from 13-+35=48 to 13-++-52—65); dorsal 
rays 90 to 120; anal rays 70 to 100; teeth broad, incisor-like; 
scales small, all cycloid. (Genera allied to Glyptocephalus). 
k. Left side of skull normal; anal spine obsolete; vertebra 48 to 
Dees aiatalatea ae) a ele ape oe Oe See ecae mee ace eame te MICROSTOMUS, 37. 
kk. Left side of skull, with large mucous cavities; anal spine 
strong; vertebre 58 to 65.............-. GLYPTOCEPHALUS, 38. 
Subfamily V.—SOLEIN A. 
(Soles with the eyes on the right side, and separated by a bony ridge.) 
Body oblong or elongate, with the eyes and color on the right side; 
eyes moderate or small, separated by a distinct bony ridge, the upper eye: 
usually more or less in advance of the lower; mouth small, more or less 
twisted towards the blind side; teeth little developed, in villiform bands; 
edge of preopercle adnate, usually concealed by the scales; gill open- 
ings more or less narrowed, the gill membranes adnate to the shoulder- 
girdle above; blind side of head usually with fringes; pectoral fins . 
small, sometimes wanting; ventral fins developed, one or both of them 
sometimes obsolete; scales usually ctenoid, rarely wanting; lateral line 
straight, usually single. 
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