Blapsidium, Oolitic insect, i. 167

Blarina, ii. [191]

Blauneria, ii. [519]

BLENNIDÆ, ii. [431]

Blenniops, ii. [431]

Blennius, ii. [431]

Blethisa, ii. [489]

Blind burrowing snakes, ii. [372]

Blunt-heads, ii. [380]

Blyth, Mr., on zoological regions, i. 60