Caspian Gull

Here the details of the Caspian Gull named bird below:

SCI Name:  Larus cachinnans
Protonym:  Larus cachinnans Zoogr.Rosso-Asiat. 2 p.318
Taxonomy:  Charadriiformes / Laridae / Larus
Taxonomy Code:  casgul2
Type Locality:  Caspian Sea.
Author:  Pallas
Publish Year:  1811
IUCN Status:  Least Concern

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.

cachinnans
L. cachinnans, cachinnantis  laughing  < cachinnare  to laugh aloud.
● "41. FALCO.  ...  cachinnans.  17. F. cera pedibus luteis, palpebris albis, corpore fusco albidoque vario, annulo nigro verticem album cingente. Rolander.  Habitat in America meridionali.  Corpus supra Dorsum, Alas, uropygium fuscum; sed Alba sunt collum, gula, pectus, abdomen, alæ subtus. Cauda fasciis luteis nigrisque. Hominem observans cachinnos edit." (Linnaeus 1758) (Herpetotheres).