ii. 226

Siwalik Hills, Miocene deposits of, i. 121

_Skenea_, ii. 510

Sloths, ii. 244

Slugs, ii. 517

_Smaragdochrysis_, ii. 109

_Smerinthus_, ii. 483

_Smiliogaster_, ii. 453

_Sminthus_, ii. 230

Smith, Mr. Frederick, on Hymenoptera of Japan, i. 230

_Smithornis_, ii. 270

_Smutsia_, ii. 245

Snails, ii. 512

Snake, at great elevation in Himalayas, i. 220

Snakes, classification of, i. 99 Eocene, i. 165 large proportion of venomous species in Australia, i. 396 of New Zealand, i. 457 distribution and lines of migration of, ii. 547

Snipes, ii. 353

Society Islands, birds of, i. 443

Socorro, zoology of, ii. 60

Soft-tortoises, ii. 409

_Solarium_, ii. 510

_Solea_, ii. 441

SOLENIDÆ, ii. 536

_Solenodon_, ii. 188

SOLENOSTOMIDÆ, ii. 456

Solitaire, ii. 334

_Somateria_, ii. 364

_Soricictis_, European Miocene, i. 118