MUGILIDA, — XLVI. 99 
Perca, perch; Esoz, pike; intermediate between Pikes and 
Perches.) 
Famity XLVI. MUGILIDAS. (Tue Mutirts.) 
Body oblong, with large cycloid scales; no lateral line; mouth 
small, nearly toothless; upper jaw protractile; gill membranes free 
from isthmus; gill rakers long, slender; pseudobranchiz large. 
Dorsals separate, the anterior with four spines ; anal similar to soft 
dorsal, its spines 2 or 3. Air-bladder large; intestinal canal long; 
vertebrae 11-+ 1324. Genera 5, species 75; in fresh waters 
and seas of warm regions, feeding on mud. 
a. Jaws with tooth-like cilia; stomach muscular, gizzard-like; anal spines 3. 
Mua, 112. 
112. MUGIL (Artedi) Linneus. (Ancient name from mulgeo, 
to suck.) 
a, Adipose eyelid well developed. (Mugil.) 
6. Soft D. and A. nearly naked; A. III, 8. 
245. M. cephalus L. Stripep MuLiet. Common MULtet. 
Silvery, darker above; dark stripes along the rows of scales; a 
dusky blotch on base P. Head 4; depth 4. D.IV-I, 8. Scales 
40-13. L, 24. Warm seas; common N. to Cape Cod, ascending 
streams. (M. albula L.) (Eu.) (An old name, from xepady, 
head.) 
bb. Soft D. and A. scaly; A. IIT, 9. 
246. M. curema Cuv. & Val. Waits Mouuiet. BLur-BAck 
Mutzer. Liza. Silvery; scales without dark stripes; a dark 
spot at base P.; P. not nearly reaching D. Head 4; depth 4. 
D.IV-I, 8. Scales 38-12, L. 18. Warm seas, N. to Cape Cod, 
scarce N. (M. brasiliensis Giinther, not of Agassiz.) (A Brazilian 
name.) 
Famity XLVII ATHERINIDAS. (THE SILversipes.) 
Body elongate, compressed, with cycloid scales ; no lateral line ; 
mouth moderate; teeth small; opercles unarmed ; gill membranes 
free; pseudobranchie present; gill rakers slender. Dorsals well 
separated, the first of 3 to 8 slender spines ; A. similar to soft D., 
with one spine; V. I, 5; air-bladder present ; vertebrae numerous. 
Genera 8; species 50, fishes living in schools along coasts of warm 
regions, a few in rivers. (déepivy, the old name from aénp, a dart.) 
u. Premaxillaries freely protractile; their posterior end broad; teeth in bands. 
none on vomer; a silvery band along side. 
b. Jaws both short, the upper scarcely longer than eye... . Menzpra, 113. 
6b. Jaws both ays in a short beak; the upper about half longer than 
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