Ecomorphology of the rectal gland of three batoids (Elasmobranchii: Myliobatiformes)
Zoologischer Anzeiger, 2021 Abstract The rectal gland (RG) is a specialized organ that performs a major role in salt excretion of marine elasmobranch species. We aimed to describe the rectal gland ecomorphology in three stingray species (Hypanus marianae, Hypanus guttatus, and Aetobatus narinari) from benthic and pelagic habitats.
Andressa C.M. de Melo +6 more
openaire +3 more sources
Shark and ray teeth from the Hauterivian (Lower Cretaceous) of north-east England [PDF]
, 1999 Sampling of hiatal horizons within the Hauterivian part of the Speeton Clay Formation of north-east England has produced teeth of several species of sharks and rays, four of which are previously unnamed.
Mitchell, S.F. +2 more
core +1 more source
Two new species of Halysioncum Caira, Marques, Jensen, Kuchta et Ivanov, 2013 (Cestoda, Diphyllidea) from Indo-Pacific rays of the genus Aetomylaeus Garman (Myliobatiformes, Myliobatidae) [PDF]
, 2013 : Recent collections of cestode parasites from two species of the myliobatid genus Aetomylaeus Garman from several localities in the Pacific Ocean resulted in the discovery of two new species of Halysioncum Caira, Marques, Jensen, Kuchta et Ivanov ...
Euzet +9 more
core +1 more source
Development and evolution of dentition pattern and tooth order in the Skates and Rays (Batoidea; Chondrichthyes) [PDF]
, 2015 Shark and ray (elasmobranch) dentitions are well known for their multiple generations of teeth, with isolated teeth being common in the fossil record.
Fraser, G.J. +7 more
core +10 more sources
Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
Geologica Acta, 2019 The Langhian Vc unit of Brielas section (Caparica road, Almada), in the marine Miocene of the Lower Tagus Basin (West Portugal), is rich in batoid species.
P. FIALHO, A. BALBINO, M.T. ANTUNES
doaj +3 more sources
Sawfishes and Other Elasmobranch Assemblages from the Mio-Pliocene of the South Caribbean (Urumaco Sequence, Northwestern Venezuela). [PDF]
PLoS ONE, 2015 The Urumaco stratigraphic sequence, western Venezuela, preserves a variety of paleoenvironments that include terrestrial, riverine, lacustrine and marine facies.
Jorge D Carrillo-Briceño +4 more
doaj +1 more source
Diversification of the Neoselachii (Chondrichthyes) during the Jurassic and Cretaceous [PDF]
, 2006 The Neoselachii are a monophyletic group including all of the extant sharks and rays. They underwent rapid diversification throughout the Jurassic and Cretaceous, going from low-diversity assemblages of members of extinct orders in the Late Triassic to ...
Underwood, Charlie J.
core +1 more source
Acta Scientiarum: Biological Sciences, 2008 Potamotrygonidae constitui o único grupo recente de Chondrichthyes cujo habitat está restrito, exclusivamente, a águas continentais. Na planície de inundação do Alto rio Paraná, espécies desta família estabeleceram-se após o fechamento das comportas da ...
Antonio Guilherme Cândido da Silva +1 more
doaj +1 more source
A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madrede Díos, Peru (Chondrichthyes: Potamotrygonidae) [PDF]
, 2011 Potamotrygon tatianae sp. nov., is described from Río Madre de Díos, Peru, upper Rio Madeira basin. The new species is distinguished from all congeners by a unique combination of characters, including its dorsal color pattern formed by a relatively ...
CARVALHO, Marcelo R. de +1 more
core +3 more sources
Revista Brasileira de Parasitologia Veterinária, 2018 The helminthological examination of nine individuals of Aetobatus cf. narinari (spotted eagle ray; raya pinta; arraia pintada) revealed the presence of an undescribed species of cestode of the genus Acanthobothrium. The stingrays were collected from four
Erick Rodríguez-Ibarra +3 more
doaj +1 more source