Ring-billed Gull / Larus delawarensis

Ring-billed Gull / Larus delawarensis

Ring-billed Gull

SCI Name:  Larus delawarensis
Protonym:  Larus Delawarensis Geogr.[Guthrie]ed.2(Am.) ed.2(Am.), 2 p.319
Category:  Charadriiformes / Laridae /
Taxonomy Code:  ribgul
Type Locality:  Delaware River, below Philadelphia.
Author:  
Publish Year:  1815
IUCN Status:  

DEFINITIONS

LARUS
(Laridae; Ϯ Great Black-backed Gull L. marinus) L. larus  rapacious seabird, probably a gull  < Gr. λαρος laros  voracious seabird, perhaps a gull; the Great Black-backed Gull, the largest member of the Laridae, breeds only on sea coasts, where it is a true predator; "69. LARUS.  Rostrum edentulum, rectum, cultratum, apice declive: Mandibula inferior infra apicem gibba.  Nares lineares, antice latiores.   ...   Pulli primi anni plurumque in his grisei sunt; unde speciei multiplicatio." (Linnaeus 1758); "Larus Linné, Syst. Nat., ed. 10, 1, 1758, p. 136. Type, by subsequent designation, Larus marinus Linné (Selby, Cat. Gen. Subgen. Types Aves, 1840, p. 48)" (Peters 1934, II, 313). Linnaeus's Larus comprised six species (L. tridactylus, L. canus, L. marinus, L. fuscus, L. Atricilla, L. parasiticus).
Synon. Adelarus, Atricilla, Blasipus, Bruchigavia, Caturates, Chroicocephalus, Cirrhocephala, Clupeilarus, Dominicanus, Einalia, Epitelarus, Gabianus, Gavia, Gavina, Gelastes, Glaucus, Hydropeleia, Ichthyaetus, Lambruschinia, Laroides, Lencus, Leucophaeus, Melagavia, Melanolarus, Microlarus, Misamichus, Ocyplanus, Pacificolarus, Plautus, Procellarus.

delawarensis
Delaware River, USA.
● "Ϯ Toothed-bill G[ull]. .  L[arus]. Delawarensis.  ...  Ϯ This is a beautiful Gull, and was discovered on the Delaware below Philadelphia; it is a nondescript." (Ord in Guthrie 1815) (Larus).