ii. 235, 236

Sclater, Mr., on zoological regions, i. 59 why his six regions are adopted, i. 63 on birds of Sandwich Islands, i. 445 on systematic position of _Certhidea_, ii. 31

Sclater and Salvin, Messrs., on Neotropical sub-regions, ii. 25

SCLERODERMI, ii. 457

_Sclerognathus_, ii. 451

SCLERURINÆ, ii. 295

_Sclerurus_, ii. 103

_Scolecophagus_, ii. 282

SCOLOPACIDÆ, ii. 353

_Scolopax_, ii. 353

_Scomber_, ii. 429

SCOMBRESOCIDÆ, ii. 449

_Scombresox_, ii. 449

SCOMBRIDÆ, ii. 429

SCOPELIDÆ, ii. 446

_Scops_, ii. 350

_Scopus_, ii. 360

_Scortornis_, ii. 320

_Scotopelia_, ii. 350

_Scotophilus_, ii. 183

_Scrapteira_, ii. 391

Screamers, ii. 361

Scrub-birds, ii. 299

SCYLLIDÆ, ii. 461

_Scyllium_, ii. 461

_Scytale_, ii. 379

SCYTALIDÆ, ii. 379

_Scytalopus_, ii. 297

_Scythrops_, ii. 310

Sea, as a barrier to mammalia, i. 13

Sea-devils, ii. 463

Seals, fossil in European Miocene, i. 118 of Lake Baikal, i. 218