1384 
g * Dorsal moderate, postmedian; ventral 
opposite dorsal; size small. 
Omosudidae. 
g 2 . Dorsal very large, high, occupies 
most of back; ventral nearer pect¬ 
oral than anal; size large. 
Alepidosaurldae. 
Eye with orbital cavity expanded down¬ 
ward. 
Evermannellidae. 
Eyes mostly telescopic, lateral, direct¬ 
ed upward. 
Scopelarchidae. 
