satisfactory comparison. 
All the above material agrees in the character of the 
rather long spinous dorsal, when compared with the Italian 
material. In the last when the spinous dorsal is depressed 
we count 5 to 7 scales behind it to the soft dorsal, wheres 
all the South American material shows but 4 and rarely 
and the interspace is noticeably less. 
An example in the Wilkes Collection from Hulls Island 
like the Italian material in this respect. It has 8 branch- 
anal rays. 
Two examples in the Wilkes Collection, l 
Fiji, show: H 
7: 0, TIE 8 
14 transversely and 
ee ce n= EE SND SE EN meme = eee 
61 Voy. Bonite, 4Zool., I, 
iles Ssndwich. 
Mugil trichilus Vaillant and Sauvage. 
= 9 wl ¢ 3 ak A a/c _ / r 
Head 32 to 323; depth 3S 3/5 TO 4° 2/55: Y., 
2 to $5 from shoulder to 
11 scales transversely at 
dorsal origin, rare 
/ Ms * . “ f > 
snout 3 2/3 to 3: in head; eye 4 to 4 1/8; maxillary 
Se; interorbital 2 i/3 to 2 2/3. Body compressed, de 
* 
7 
et dorsal origin; caudal well compressed, least 
3 
1 1/3 in its length or 2 1/3 to 2g in head. Head 
