Results 181 to 190 of about 1,036 (219)

Ontogeny of the Appendicular Skeleton inMelanosuchus niger(Crocodylia: Alligatoridae)

Zoological Science, 2016
The objective of the present study was to analyze chondrogenesis and the ossification pattern of the limbs of Melanosuchus niger in order to contribute with possible discussions on homology and the fusion pattern of autopodial elements and phylogeny. In the Reserva Extrativista do Lago Cuniã, Rondônia, Brazil, six nests were marked and two eggs removed
Lucélia Gonçalves, Vieira, André Luiz Quaqliatto, Santos, Fabiano Campos, Lima, Sônia Helena Santesso Teixeira de, Mendonça, Lorena Tannus, Menezes, Antônio, Sebben   +5 more
openaire   +2 more sources

Unexpected but unsurprising lineage diversity within the most widespread Neotropical crocodilian genusCaiman(Crocodylia, Alligatoridae)

Systematics and Biodiversity, 2020
Species discovery methods utilizing coalescent-based approaches are powerful tools for detecting cryptic lineages within morphological conservative groups, thus being an important methodology of integrative taxonomic research.
Fabio De Lima Muniz, Sandra M Hernandez-Rangel, Robson Waldemar Avila   +2 more
exaly   +2 more sources

FIRST RECORD OF A POLYSTOME (MONOGENOIDEA: POLYSTOMATIDAE) INFECTING A CROCODILIAN: LATERGATOR LOUISDUPREEZI N. GEN., N. SP. FROM THE EYE OF AN AMERICAN ALLIGATOR, ALLIGATOR MISSISSIPPIENSIS DAUDIN, 1802 (CROCODILIA: ALLIGATORIDAE) IN A NORTH-CENTRAL GULF OF AMERICA SALT MARSH (ROCKEFELLER WILDLIFE

Journal of Parasitology
From July 2021 through June 2024, we necropsied 35 American alligators from Louisiana, Alabama, and South Carolina (including the Gulf of America and Atlantic Ocean river basins). A new polystomatid, Latergater dupreezi n. gen., n. sp. is described based
H. Dutton, S. A. Bullard
semanticscholar   +1 more source

MALFORMACIÓN CAUDAL EN Caiman crocodilus (ALLIGATORIDAE) EN EL SITIO RAMSAR BARRA DE SANTIAGO, EL SALVADOR

Revista Latinoamericana de Herpetología
La presencia de malformaciones ha sido observada en la mayoría de vertebrados, en cocodrilianos como el caimán de anteojos (Caiman crocodilus), los registros son limitados y provienen de estudios realizados con ejemplares en cautiverio (granjas ...
Carlos Roberto Avilés Argueta, Jazminne S. Paiz, Johana Sermeño, Juan Alberto Tormos Pérez, Jordi H. Segura, Ramón Joel Espinal Acevedo   +5 more
semanticscholar   +1 more source

Ultrastructure of the spermatozoon of the American Alligator, Alligator mississippiensis (Reptilia: Alligatoridae)

Journal of Morphology, 2011
AbstractThis study details the ultrastructure of the spermatozoa of the American Alligator, Alligator mississippiensis. American Alligator spermatozoa are filiform and slightly curved. The acrosome is tapered at its anterior end and surrounded by the acrosome vesicle and an underlying subacrosomal cone, which rests just cephalic to the nuclear rostrum.
Kevin M, Gribbins, Katherine F, Touzinsky, Dustin S, Siegel, Katherine J, Venable, Georgia L, Hester, Ruth M, Elsey   +5 more
openaire   +2 more sources

PREDATION ON Pristimantis pluvian (ANURA: STRABOMANTIDAE) BY Paleosuchus trigonatus (CROCODYLIA: ALLIGATORIDAE) IN THE BRAZILIAN AMAZON

Revista Latinoamericana de Herpetología
Crocodilians are apex predators with a generalist diet, consuming a wide variety of invertebrates and vertebrates. In this study, we describe a predation event of the frog Pristimantis pluvian by a juvenile Paleosuchus trigonatus in the municipality of ...
Henrique Folly, Rafaela Thaler, Leandro Alves da Silva   +2 more
semanticscholar   +1 more source

Morphology of the male reproductive duct system of Caiman crocodilus (Crocodylia, Alligatoridae)

Annals of Anatomy - Anatomischer Anzeiger, 2004
The male reproductive duct system of Caiman crocodilus in different reproductive stages was studied using light and electron microscopy, to determine whether shared morphological features exist between Crocodylia and Aves, in concurrence with the Archosauria hypothesis.
Sandra M, Guerrero, Martha L, Calderón, Gloria R, de Pérez, Martha Patricia, Ramírez Pinilla   +3 more
openaire   +2 more sources

OSTEOLOGIA CRANEAL, DISTRIBUCION GEOGRAFICA Y ECOLOGIA DE MELANOSUCHUS NIGER (SPIX) (CROCODYLIA, ALLIGATORIDAE)

Revista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales
lntroduccián.  La presencia de Melanosuchus niger en Colombia fue señalada por primera vez por Dunn (1945) a base de  unos  ejemplares  coleccionados por  el Profesor F.  Carlos Lehmann Valencia alrededor  de Leticia (Amazonas) en 1939.
Federico Medem
semanticscholar   +1 more source

Molecular and functional characterization of BAFF from the Yangtze alligator (Alligator sinensis, Alligatoridae)

Zoology, 2015
B-cell activating factor (BAFF) from the TNF family is critical for B-cell survival and maturation. In this study, we identified a Yangtze alligator (Alligator sinensis, Alligatoridae) BAFF cDNA, designated as asBAFF, using reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE).
Jia-Xin, Zhang, Ren, Song, Ming, Sang, Si-Qing, Sun, Lei, Ma, Jie, Zhang, Shuang-Quan, Zhang   +6 more
openaire   +2 more sources

Climatic effects on the reproductive biology of Caiman latirostris (Crocodylia: Alligatoridae)

Amphibia-Reptilia, 2011
Abstract Reproductive aspects, like number of nests produced per season or clutch size (number of eggs per nest), of broad-snouted caiman ( Caiman latirostris ) may be affected by a climatic variables such as rainfall and temperature. The success
Melina Soledad Simoncini, Carlos Ignacio Piña, Félix Benjamín Cruz, Alejandro Larriera   +3 more
openaire   +1 more source