from the Island of Marajo, Brazil. 295 
border of eye; preopercular border distinctly serrated ; 
snout naked, rest of head scaly. Giull-rakers moderate, the 
longest measuring about 4 diameter of eye, 12 on lower part 
of anterior arch. Dorsal XIII 12, originating above poste- 
rior border of opercle, the spinous portion 24 times as long 
as the soft and twice as deep; spines strong, increasing in 
length to the fifth, which measures a little over half length 
of head, and decreasing again to the last two, which measure 
+ length of head. Pectoral 2 length of head, as long as 
ventral. Anal III 11; second spine very strong, longest, 
2 length of head. Caudal with crescentic emargination. 
Scales finely ciliated, 65 7; lat. 1.57. Uniform silvery. 
20? 
Total length 260 millim. 
Sciznide. 
. Sciena amazonica, Cast. M., 5S. 
. Plagioscion squamosissimus, Heck. M. 
. Plagioscion auratus, Cast. M. 
. Otolithus liurchus,C.& V. M. 
IOS Op 
Carangida. 
8. Argyriosus vomer, L. S. 
Batrachida. 
9. Batrachus surinamensis, Bl. Schn. M. 
Mugilide. 
10. Mugil incilts, Hancock. M. 
Cichlida. 
11. Acara tetramerus, Heck. 
12. Heros coryphenotdes, Heck. 
13. Hygrogonus ocellatus, Ag. S. 
14. Cichla temensis, Humb. 
15. Crenicichla johanna, Heck. 
16. Crenicichla saxatilis, L. S. 
17. Chetobranchus robustus, Gthr. S. 
18. Satanoperca jurupart, Heck. 
Pleuronectide. 
19. Solea maculipinnis, Ag. M. 
