Species: trigonatus (SCHNEIDER, 1801) SCHMIDT, 1928 (Living)
Etymology: Greek, trigonos, "three-cornered" and Latin, atus, suffuix that means provide with; referring to the shape of the head.
(Smooth-fronted caiman, Schneider's dwarf caiman, Jacaré Coroa, Cochirre, Jacaré curua, Yacaré coroa, The Smooth-eyed, Rough-backed or Trigonal Caiman)

Lectotype: ZMB 243 (as per Bauer, A. M., and Günther, R., 2006)

Locality: Tropical South America, Orinoco and Amazon.

= Crocodilus trigonatus SCHNEIDER, 1801
Etymology:
= Alligator trigonatus (SCHNEIDER, 1801) MERREM, 1820
= Caiman trigonatus (SCHNEIDER, 1801) GRAY, 1844
= Jacaretinga trigonatus (SCHNEIDER, 1801) VAILLANT, 1898
= Champsa triagonata (SCHNEIDER, 1801) WAGLER, 1830
= Crocodylus niloticus LAURENTI, 1768 (partim)
Etymology:
= Paleosuchus niloticus (LAURENTI, 1768)
= Crocodilus palpebrosus var. 2 CUVIER, 1807
Etymology:
= Alligator palpebrosus var. 2 CUVIER, 1807

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Species: palpebrosus (CUVIER, 1807) MULLER, 1924 (Living)
Etymology: Latin, palpebra, "eyelid or palpebrals" and Latin, osus, "full of"; referring to the bony plates (paleprebrals) on the upper eyeleids, bony eyelid.
(Cuvier's dwarf caiman, Cuvier's smooth-fronted caiman (reflecting the lack of infraorbital ridge found in Caiman crocodilus - leading to the suggestion that Paleosuchus ('ancient crocodile') is an older lineage, branching off from other Caiman over 30 mya), Cachirré, Jacaré pagua; Coroa, Musky caiman)

Locality: Tropical South America from the costal regions of Guyanan down to latitude 10 degrees south.

= Crocodilus palpebrosus CUVIER, 1807
= Alligator palpebrosus (CUVIER, 1807) MERREM, 1820
= Caiman palpebrosus (CUVIER, 1807) GRAY, 1844
= Jacaretinga palepebrosus (CUVIER, 1807) VAILLANT, 1898
= Crocodylus palepebrosus (CUVIER, 1807) WERNER, 1933
= Jacaretinga moschifer SPIX, 1825
Etymology:
= Champsa palpebrosa (CUVIER, 1897) WAGLER, 1830
= Champsa gibbiceps NATTERER, 1840
Etymology: