Fin systems comparative anatomy in model Batoidea Raja asterias and Torpedo marmorata: Insights and relatioships between musculo-skeletal layout, locomotion and morphology. [PDF]
The macroscopic and microscopic morphology of the appendicular skeleton was studied in the two species Raja asterias (order Rajiformes) and Torpedo marmorata (Order Torpediniformes), comparing the organization and structural layout of pectoral, pelvic ...
Pazzaglia UE +6 more
europepmc +4 more sources
Diversity, palaeoecology and palaeoenvironmental significance of the Eocene chondrichthyan assemblages of the Bolca Lagerstätte, Italy. [PDF]
Over the last few years, the morphology, taxonomy and systematics of the cartilaginous fish taxa of the two main sites of the Bolca Lagerstätte, Italy, (Pesciara and Monte Postale sites) have been extensively discussed in a series of papers, resulting in a complete revision of this neglected component of the Eocene Tethyan ichthyofauna.
Marramà G, Carnevale G, Kriwet J.
europepmc +4 more sources
In this study, we report, for the first time, mitochondrial genome of Narcine timlei (Bloch & Schneider, 1801) and its phylogenetic relationships within the order Torpediniformes. Narcine timlei is a medium-sized ray that occurs in nearshore waters of the Indo-Pacific and is classified as “‘vulnerable” category on the IUCN Red List.
Amit Kumar, Sanjeevi Prakash
wiley +3 more sources
New record of spot-tail sleeper ray Narke dipterygia (Bloch and Schneider, 1801) (Elasmobranchii, Torpediniformes, Narkidae) from the coast of Gujarat, India [PDF]
Narke dipterygia (Bloch and Schneider, 1801), commonly known as numb ray, is a widely distributed species in the Arabian Sea and South-East Asian countries.
Dhaval Bhatt +2 more
doaj +3 more sources
Se analizaron aspectos reproductivos de la raya eléctrica Narcine bancroftii, capturada como bycatch con una red playera de cerco en dos playas del sector de El Rodadero, Santa Marta, Caribe colombiano.
Fabián Moreno +4 more
doaj +2 more sources
Discopyge castelloi sp. nov. (Torpediniformes, Narcinidae), a new species of electric ray from the Argentine Sea [PDF]
A new species of electric ray of the family Narcinidae, Discopyge castelloi, is described from the southwestern Atlantic off Argentina. Distinctive characters of the new species are the form of the body, the posterior position of pelvic fins and the ...
Roberto Menni +2 more
openaire +5 more sources
DNA barcoding the ichthyofauna of the Beibu Gulf: Implications for fisheries management in a seafood market hub. [PDF]
The fish fauna of the beibu gulf, one of the largest sea food hubs in Southeast Asia, is characterized here by DNA barcoding. The 1080 DNA barcodes analyzed show concordance between morphological identifications and DNA‐based species delimitation. Lower level of diversity detected here compared to historical observations is concordant with the stock ...
Jiang C +6 more
europepmc +2 more sources
Distribution and taxonomic identity of the species of Narcine (Toperdiniformes: Narcinidae) in the southwestern Atlantic Ocean. [PDF]
Abstract The genus Narcine is the most diverse among electric rays of the order Torpediniformes and is also the only electric ray genus with more than one species occurring in South American waters: Narcine brasiliensis and Narcine bancroftii. The first species has been historically described as distributed from Brazil's southeast coast down to ...
Gonçalves Araújo MV +2 more
europepmc +2 more sources
The evolutionary origin of the durophagous pelagic stingray ecomorph. [PDF]
Abstract Studies of the origin of evolutionary novelties (novel traits, feeding modes, behaviours, ecological niches, etc.) have considered a number of taxa experimenting with new body plans, allowing them to occupy new habitats and exploit new trophic resources.
Marramà G +4 more
europepmc +2 more sources
Reproductive Anatomy of Chondrichthyans: Notes on Specimen Handling and Sperm Extraction. I. Rays and Skates. [PDF]
[EN] Many species of rays and skates are endangered, and ex situ conservation programs developed by research centers and public aquaria could improve this situation.
García-Salinas P +2 more
europepmc +2 more sources

