Names with citations in year 1921

Class: Amphibia
- Order: Anura
  - Family: Aromobatidae
    - Subfamily: Allobatinae
      - Genus: Allobates
        
        Species: Allobates talamancae (Cope, 1875)
        
        Synonym: Phyllobates talamancae — Barbour and Dunn, 1921
  - Family: Arthroleptidae
    - Subfamily: Arthroleptinae
      - Genus: Arthroleptis Smith, 1849
        
        Synonym: Schoutedenella De Witte, 1921
        
        Species: Arthroleptis lameerei De Witte, 1921
        
        Species: Arthroleptis spinalis Boulenger, 1919
        
        Synonym: Arthroleptis boulengeri De Witte, 1921
        
        Species: Arthroleptis tuberosus Andersson, 1905
        
        Synonym: Arthroleptis procterae De Witte, 1921
        
        Species: Arthroleptis xenochirus Boulenger, 1905
        
        Synonym: Schoutedenella globosa De Witte, 1921
  - Family: Bufonidae
    - Genus: Atelopus
      - Species: Atelopus boulengeri Peracca, 1904
        
        Synonym: Atelopus bicolor Noble, 1921
      - Species: Atelopus tricolor Boulenger, 1902
        
        Synonym: Atelopus rugulosus Noble, 1921
  - Family: Craugastoridae
    - Subfamily: Craugastorinae
      - Genus: Craugastor
        
        Species: Craugastor noblei (Barbour and Dunn, 1921)
        
        Synonym: Eleutherodactylus noblei Barbour and Dunn, 1921
    - Subfamily: Holoadeninae
      - Genus: Noblella
        
        Species: Noblella peruviana (Noble, 1921)
        
        Synonym: Sminthillus peruvianus Noble, 1921
    - Subfamily: Pristimantinae
      - Genus: Pristimantis
        
        Species: Pristimantis altamazonicus (Barbour and Dunn, 1921)
        
        Synonym: Eleutherodactylus altamazonicus Barbour and Dunn, 1921
        
        Species: Pristimantis cruentus (Peters, 1873)
        
        Synonym: Syrrhophus lutosus Barbour and Dunn, 1921
  - Family: Dendrobatidae
    - Subfamily: Colostethinae
      - Genus: Epipedobates
        
        Species: Epipedobates anthonyi (Noble, 1921)
        
        Synonym: Phyllobates anthonyi Noble, 1921
    - Subfamily: Dendrobatinae
      - Genus: Phyllobates
        
        Species: Phyllobates lugubris (Schmidt, 1857)
        
        Synonym: Phyllobates beatriciae Barbour and Dunn, 1921
  - Family: Dicroglossidae
    - Subfamily: Dicroglossinae
      - Genus: Hoplobatrachus
        
        Species: Hoplobatrachus occipitalis (Günther, 1858)
        
        Synonym: Rana (Rana) tigrina occipitalis — Chabanaud, 1921
      - Genus: Quasipaa
        
        Species: Quasipaa spinosa (David, 1875)
        
        Synonym: Rana duboisreymondi Vogt, 1921
    - Subfamily: Occidozyginae
      - Genus: Ingerana
        
        Species: Ingerana tasanae (Smith, 1921)
        
        Synonym: Rana pullus Smith, 1921
        
        Synonym: Rana tasanae Smith, 1921
  - Family: Eleutherodactylidae
    - Subfamily: Eleutherodactylinae
      - Genus: Eleutherodactylus
        
        Species: Eleutherodactylus inoptatus (Barbour, 1914)
        
        Synonym: Eleutherodactylus inoptatus — Schmidt, 1921
  - Family: Hylidae
    - Subfamily: Hylinae
      - Genus: Hypsiboas
        
        Species: Hypsiboas lanciformis Cope, 1871
        
        Synonym: Hyla microcentra Werner, 1921
        
        Species: Hypsiboas raniceps Cope, 1862
        
        Synonym: Hyla goodfellowi Procter, 1921
      - Genus: Osteopilus
        
        Species: Osteopilus septentrionalis (Duméril and Bibron, 1841)
        
        Synonym: Hyla microterodisca Werner, 1921
      - Species: "Hyla" imitator (Barbour and Dunn, 1921)
        
        Synonym: Paludicola imitator Barbour and Dunn, 1921
  - Family: Hyperoliidae
    - Genus: Hyperolius
      - Species: Hyperolius soror (Chabanaud, 1921)
        
        Synonym: Rappia soror Chabanaud, 1921
      - Species: Hyperolius viridiflavus (Duméril and Bibron, 1841)
        
        Synonym: Rappia burgeoni De Witte, 1921
  - Family: Megophryidae
    - Genus: Brachytarsophrys
      - Species: Brachytarsophrys intermedia (Smith, 1921)
        
        Synonym: Megalophrys intermedius Smith, 1921
    - Genus: Leptobrachium
      - Species: Leptobrachium pullum (Smith, 1921)
        
        Synonym: Megalophrys hasseltii var. pullus Smith, 1921
  - Family: Microhylidae
    - Subfamily: Microhylinae
      - Genus: Chaperina
        
        Species: Chaperina fusca Mocquard, 1892
        
        Synonym: Nectophryne picturata Smith, 1921
  - Family: Phrynobatrachidae
    - Genus: Phrynobatrachus
      - Species: Phrynobatrachus fraterculus (Chabanaud, 1921)
        
        Synonym: Arthroleptis fraterculus Chabanaud, 1921
      - Species: Phrynobatrachus giorgii De Witte, 1921
      - Species: Phrynobatrachus gutturosus (Chabanaud, 1921)
        
        Synonym: Arthroleptis gutturosus Chabanaud, 1921
      - Species: Phrynobatrachus parvulus (Boulenger, 1905)
        
        Synonym: Arthroleptis schoutedeni De Witte, 1921
      - Species: Phrynobatrachus tokba (Chabanaud, 1921)
        
        Synonym: Arthroleptis tokba Chabanaud, 1921
  - Family: Ptychadenidae
    - Genus: Ptychadena
      - Species: Ptychadena aequiplicata (Werner, 1898)
        
        Synonym: Rana (Ptychadena) aequiplicata — De Witte, 1921
      - Species: Ptychadena ansorgii (Boulenger, 1905)
        
        Synonym: Rana (Ptychadena) ansorgii — De Witte, 1921
      - Species: Ptychadena bibroni (Hallowell, 1845)
        
        Synonym: Rana (Ptychadena) bibroni — De Witte, 1921
      - Species: Ptychadena boettgeri (Pfeffer, 1893)
        
        Synonym: Rana (Ptychadena) boettgeri De Witte, 1921
      - Species: Ptychadena bunoderma (Boulenger, 1907)
        
        Synonym: Rana (Ptychadena) bunoderma — De Witte, 1921
      - Species: Ptychadena christyi (Boulenger, 1919)
        
        Synonym: Rana (Ptychadena) christyi — De Witte, 1921
      - Species: Ptychadena longirostris (Peters, 1870)
        
        Synonym: Rana (Ptychadena) guerzea — Chabanaud, 1921
        
        Synonym: Rana (Ptychadena) leonnensis — De Witte, 1921
        
        Synonym: Rana (Ptychadena) longirostris — De Witte, 1921
      - Species: Ptychadena newtoni (Bocage, 1886)
        
        Synonym: Rana (Ptychadena) newtoni — De Witte, 1921
      - Species: Ptychadena pumilio (Boulenger, 1920)
        
        Synonym: Rana (Ptychadena) pumilio — De Witte, 1921
      - Species: Ptychadena schillukorum (Werner, 1908)
        
        Synonym: Rana (Ptychadena) floweri — De Witte, 1921
      - Species: Ptychadena stenocephala (Boulenger, 1901)
        
        Synonym: Rana (Ptychadena) stenocephala — De Witte, 1921
      - Species: Ptychadena subpunctata (Bocage, 1866)
        
        Synonym: Rana (Ptychadena) katangae De Witte, 1921
        
        Synonym: Rana (Ptychadena) subpunctata — De Witte, 1921
      - Species: Ptychadena trinodis (Boettger, 1881)
        
        Synonym: Rana (Ptychadena) trinodis — De Witte, 1921
  - Family: Pyxicephalidae
    - Subfamily: Cacosterninae
      - Genus: Strongylopus
        
        Species: Strongylopus fuelleborni Nieden, 1911
        
        Synonym: Rana (Ptychadena) fuelleborni — De Witte, 1921
        
        Species: Strongylopus merumontanus (Lönnberg, 1910)
        
        Synonym: Rana (Ptychadena) merumontana — De Witte, 1921
  - Family: Ranidae
    - Genus: Hylarana
      - Species: Hylarana albolabris (Hallowell, 1856)
        
        Synonym: Rana (Hylorana) albolabris — Chabanaud, 1921
      - Species: Hylarana grisea (Van Kampen, 1913)
        
        Synonym: Rana grisea var. ceramensis Smith and Procter, 1921
        
        Synonym: Rana grisea var. grisea — Smith and Procter, 1921
      - Species: Hylarana lemairei (De Witte, 1921)
        
        Synonym: Rana lemairei De Witte, 1921
      - Species: Hylarana milleti (Smith, 1921)
        
        Synonym: Rana milleti Smith, 1921
      - Species: Hylarana montivaga (Smith, 1921)
        
        Synonym: Rana montivaga Smith, 1921
    - Genus: Rana
      - Species: Rana johnsi Smith, 1921
        
        Synonym: Rana sauteri var. johnsi Smith, 1921
      - Species: Rana temporaria Linnaeus, 1758
        
        Synonym: Rana temporaria subsp. mehelyi — Ehik, 1921
  - Family: Telmatobiidae
    - Genus: Telmatobius
      - Species: Telmatobius niger Barbour and Noble, 1920
        
        Synonym: Telmatobius cinereus Noble, 1921
- Order: Caudata
  - Family: Plethodontidae
    - Subfamily: Hemidactyliinae
      - Genus: Oedipina
        
        Species: Oedipina alfaroi Dunn, 1921
      - Genus: Pseudoeurycea
        
        Species: Pseudoeurycea leprosa (Cope, 1869)
        
        Synonym: Eurycea leprosus — Noble, 1921
        
        Species: Pseudoeurycea rex (Dunn, 1921)
        
        Synonym: Oedipus rex Dunn, 1921

Amphibian Species of the World 5.6, an Online Reference

Names with citations in year 1921