Body compressed, moderately long. Eye greatly advanced, large, deep 
orbital cavity with wide transparent membranous lateral fold or wall. 
Mouth very large, mandible protruding. Premaxillary and maxillary slender. 
Teeth on premaxillaries with series of small subequal teeth. Lower jaw, 
vomer and palatines with few depressible very large fangs. No gill rakers. 
Branchiostegals 8. Dorsal short, rays 7 to 14. Adipose fin far back. 
Anal long, rays 25 to 35. Caudal 3mall. Pectoral low, near 
