** Table of contents, bibliography of On the Origin of Species – links to text and images of all six British editions of The Origin of Species, the 6th edition with additions and corrections ( final text ), the first American edition, and translations into Danish, Dutch, French, German, Polish, Russian and Spanish.

** Convention on International Trade in Endangered Species of Wild Fauna and Flora

** Species

** Species diversity, the effective number of species represented in a data set

** Species cirrostratus fibratus ( Cs fib ): Fibrous Cs less detached than cirrus ( C < sub > H </ sub > 8 except C < sub > H </ sub > 5 or 6 if increasing in amount ).

** Species cirrostratus nebulosus ( Cs neb ): A featureless veil of high cloud covering the entire sky ( C < sub > H </ sub > 7 ).

** Species altocumulus stratiformis ( Ac str ): Sheets or relatively flat patches of Ac ( synoptic coding determined by predominant variety or by genitus mother cloud ).

** Species altocumulus lenticularis ( Ac len ): Lens-shaped middle cloud ( C < sub > M </ sub > 4 ).

** Species altocumulus castellanus ( Ac cas ): Turreted middle cloud ( C < sub > M </ sub > 8 ).

** Species altocumulus floccus ( Ac flo ): Tufted middle cloud ( C < sub > M </ sub > 8 ).

** Species: None ( always nebulous or featureless ).

** Species stratocumulus stratiformis ( Sc str ): Sheets or relatively flat patches of Sc.

** Species stratocumulus lenticularis ( Sc len ): Lens-shaped low cloud.

** Species stratocumulus castellanus ( Sc cas ): Turreted low cloud.

** Species stratus nebulosus ( St neb ): A featureless veil of low cloud sometimes producing light drizzle ( C < sub > L </ sub > 6 ).

** Species stratus fractus ( St fra ): A ragged broken up sheet of St that often forms in precipitation ( C < sub > L </ sub > 7 ) falling from a higher cloud deck.

** Species: None ( always nebulous or featureless ).

** Endangered Species Act of 1973

** Species Beilong virus

** Species: Alphacoronavirus 1, Human coronavirus 229E, Human Coronavirus NL63, Miniopterus Bat coronavirus 1, Miniopterus Bat coronavirus HKU8, Porcine epidemic diarrhea virus, Rhinolophus Bat coronavirus HKU2, Scotophilus Bat coronavirus 512

** Species: Betacoronavirus 1, Human coronavirus HKU1, Murine coronavirus, Pipistrellus Bat coronavirus HKU5, Rousettus Bat coronavirus HKU9, Severe acute respiratory syndrome-related coronavirus, Tylonycteris Bat coronavirus HKU4

** Species: Avian coronavirus, Beluga whale coronavirus SW1

** Species Inia geoffrensis Amazon river dolphin

** Pachylemur, a genus of giant ruffed lemurs

** Althaea ( genus ) – Marsh mallow

** American chats, unrelated songbirds of genus Granatellus ( family Cardinalidae )

** Ornithoptera genus ( Birdwings ; the largest butterflies )

** Morpho genus

** Sequoia ( genus ), a genus with one living and several fossil species.

** Pigs – any of the animals in the genus Sus.

** Equal ( homomorphy or isomorphy ). Filamentous algae of the genus Cladophora, which are predominantly found in fresh water, have diploid sporophytes and haploid gametophytes which are externally indistinguishable.

** Salamis ( butterfly ), a genus of butterfly in the family Nymphalidae

** The genus Ceyx ( within the River kingfishers family ) is named after him

** The kingfisher family Halcyonidae ( Tree Kingfishers ) is named after his wife, as is the genus Halcyon.

** Freshwater angelfish, tropical cichlids of the genus Pterophyllum

** Many members of the subfamily Saxicolinae ( Old World chats ) to which the robin belongs, including the two other members of the genus Erithacus, the bush-robins, white-throated robin, forest robins, Indian robin, and the magpie-robins

** Tribe Melopsittacini: 1 genus with one species, the Budgerigar

** ( c. 40 species ; see genus page )

** The huge giant petrels, genus Macronectes, which are convergent with the albatrosses,

** The true fulmars, genus Fulmarus,

** Cairina moschata: Muscovy Duck ( tropical America ; genus Cairina may be paraphyletic )

** Genus Muscicapella-closely related to 2 species of Ficedula and should be placed in that genus

** Genus Tarphonomus-( new genus for 2 species formerly included in Upucerthia )

** Spot-throated Woodcreeper, Deconychura stictolaema-probably a genus on its own

** Genus Cavia, this genus is especially called cavy.

** Genus Geoclemys ( monotypic genus )

** Heath, many of the species in the genus Erica