Results 91 to 100 of about 429 (149)

Case of leucism in the spadenose shark, Scoliodon laticaudus (Müller and Henle, 1838) from Mangalore, Karnataka [PDF]

, 2011
The present paper reports the first case of leucism in the spadenose shark, Scoliodon laticaudus from India. This report is based on the study of a single specimen of S. laticaudus caught by a commercial trawler off Mangalore coast.
Durgekar, N Raveendra, Veena, S, Thomas, Sujitha, Raje, S G   +3 more
core  

Partial albinism in Rhinelepis aspera from the Upper Paraná Basin, Brazil,with a review of albinism in South American freshwater fishes

Revista Mexicana de Biodiversidad, 2016
This study reports a case of partial albinism in Rhinelepis aspera from the Aguapeí River, Upper Paraná Basin, Brazil and provides a review of albinism cases in freshwater fishes from South America.
André Batista Nobile, Diogo Freitas-Souza, Felipe Pontieri de Lima, Aline Angelina Acosta, Reinaldo José Da Silva   +4 more
doaj   +1 more source

First record of leucism in brown pelicans (Pelecanus occidentalis) in Costa Rica

, 2021
Leucism in birds is rarely observed in the Pelecaniformes order and has not been recorded for the brown pelican (Pelecanus occidentalis) in Costa Rica. We describe an observation of a leucistic brown pelican with white plumage, pink coloration on the bill and feet, but normal color on the eyes.
Vargas-Masís, Roberto, Arguedas Rodríguez, Pilar   +1 more
openaire   +2 more sources

LEUCISM IN Vanellus chilensis (MOLINA, 1872) (BIRDS: CHARADRIIFORMES) IN PAMPA BIOME, SOUTHERN BRAZIL

, 2017
Plumage aberrations in birds are not unusual and have been sporadically related in literature, in which different patterns and variations are described.
Petry, Maria Virginia, Bruckmann, Caroline dos Santos, Horn, Natascha, Corrêa, Luiz Liberato Costa   +3 more
core  

DISTRIBUTION EXTENSION AND FIRST RECORD OF LEUCISM IN THE AMAZONIAN FRESHWATER TURTLE MESOCLEMMYS RANICEPS (GRAY, 1856) (TESTUDINES: CHELIDAE)

Chromatic mutations in vertebrates have a low frequency of occurrence, despite affecting a large number of species. Furthermore, leucism is confused with albinism, while leucism is defined as the partial or total loss of melanin, the result of genetic ...
Anderson Correa Branco, Peixoto Couto, Rodney Murillo, Priscilla Soares dos Santos, Fábio Andrew Gomes Cunha, Maiara Cabrera Miguel, Vargas Grou, Carlos Eduardo   +5 more
core   +1 more source

First record of leucism for the Toco Toucan, Ramphastos toco (Piciformes: Ramphastidae) [PDF]

Brazilian Journal of Biology, 2020
Eduardo Guimarães Santos, William Sousa De Paula   +1 more
openaire   +3 more sources

Anomalous colour in Neotropical mammals: a review with new records for Didelphis sp. (Didelphidae, Didelphimorphia) and Arctocephalus australis (Otariidae, Carnivora) Coloração anômala em mamíferos Neotropicais: uma revisão com novos registros para Didelphis sp. (Didelphidae, Didelphimorphia) e Arctocephalus australis (Otariidae, Carnivora)

Brazilian Journal of Biology, 2013
Anomalous colourations occur in many tropical vertebrates. However, they are considered rare in wild populations, with very few records for the majority of animal taxa. We report two new cases of anomalous colouration in mammals.
MSL. Abreu, R. Machado, F. Barbieri, NS. Freitas, LR. Oliveira   +4 more
doaj  

Leucism in seerfish Scomberomorus commerson, landed at Chintapalli, Andhra Pradesh [PDF]

, 2014
A narrow-barred Spanish mackerel, Scomberomorus commerson (Lacepède, 1800), exhibiting leucism was landed at Chinatapalli Fishing Harbour, Vijayanagaram District on 24th January, 2014. The specimen was 130 cm long and weighed 16 kg. It was caught by
Megarajan, Sekhar, Dhanraju, K, Moshe, Ch., Edward, Loveson, Uma Mahesh, V, Rao, M V Hanumantha, Veena, S, Satish Kumar, M, Muktha, M, Ghosh, Shubhadeep   +9 more
core  

A case of partial leucism in the Blue-black Grassquit (Volatinia jacarina) from Venezuela

Huitzil Revista Mexicana de Ornitología, 2020
Reports of plumage aberrations in wild birds, as well as their distribution and frequency, are important because of their implications in bird conservation, since they are likely associated with environmental factors (e.g. contamination), population genetics, population size (e.g. endogamy) or nutrition (e.g. resource scarcity).
openaire   +1 more source

First Record of leucism in Tropidurus hispidus (Spix, 1825) (Squamata: Tropiduridae) in north Brazil, Eastern Amazon

, 2019
In vertebrates leucism does not occur frequently in nature but has been recorded in amphibians and reptiles. Herein we report the first record of leucism in Tropidurus hispidus from north Brazil, Eastern Amazon.
Costa-Campos, Carlos Eduardo, Sanches, Patrick R., Dos Santos, Fillipe P.   +2 more
core   +1 more source