Results 71 to 80 of about 522 (154)

Historical and ecological drivers of the spatial pattern of Chondrichthyes species richness in the Mediterranean Sea.

PLoS ONE, 2017
Chondrichthyes, which include Elasmobranchii (sharks and batoids) and Holocephali (chimaeras), are a relatively small group in the Mediterranean Sea (89 species) playing a key role in the ecosystems where they are found.
María José Meléndez, José Carlos Báez, José Miguel Serna-Quintero, Juan Antonio Camiñas, Ignacio de Loyola Fernández, Raimundo Real, David Macías   +6 more
doaj   +1 more source

First Record of Chimaeroid Fish (Holocephali: ’Edaphodontidae’) from the Lower Cretaceous of the Middle Volga Region [PDF]

Известия Саратовского университета. Новая серия: Серия Науки о Земле
The record of a mandibular tooth plate of the chimaeroid fish Ischyodus sp. from the Lower Cretaceous deposits of the north of the Saratov Volga River Right Bank is described. The presumed age of the find is the Lower Aptian.
Popov, Evgeniy Valerievich, Zenina, Yulia V.   +1 more
doaj   +1 more source

The current status of the Adriatic sea fish biodiversity

Frontiers in Marine Science, 2015
The marine biodiversity of the Mediterranean Sea is nowadays facing substantial structural changes in flora and fauna. Such changes were observed in the Adriatic Sea as well.
Jakov Dulčić, Lovrenc Lipej
doaj   +1 more source

A new paleozoic Symmoriiformes (Chondrichthyes) from the late Carboniferous of Kansas (USA) and cladistic analysis of early chondrichthyans.

PLoS ONE, 2011
BackgroundThe relationships of cartilaginous fishes are discussed in the light of well preserved three-dimensional Paleozoic specimens. There is no consensus to date on the interrelationship of Paleozoic chondrichthyans, although three main phylogenetic ...
Alan Pradel, Paul Tafforeau, John G Maisey, Philippe Janvier   +3 more
doaj   +1 more source

Characterization of Gonadotropin-Releasing Hormone (GnRH) Genes From Cartilaginous Fish: Evolutionary Perspectives

Frontiers in Neuroscience, 2018
The neuropeptide gonadotropin-releasing hormone (GnRH) plays an important role in the control of reproductive functions. Vertebrates possess multiple GnRH forms that are classified into three main groups, namely GnRH1, GnRH2, and GnRH3.
Anne-Laure Gaillard, Boon-Hui Tay, Daniela I. Pérez Sirkin, Anne-Gaëlle Lafont, Céline De Flori, Paula G. Vissio, Sylvie Mazan, Sylvie Dufour, Byrappa Venkatesh, Hervé Tostivint   +9 more
doaj   +1 more source

Not all fish are equal: functional biodiversity of cartilaginous fishes (Elasmobranchii and Holocephali) in Chile

Journal of Fish Biology, 2014
A review of the primary literature on the cartilaginous fishes (sharks, skates, rays and chimaeras), together with new information suggests that 106 species occur in Chilean waters, comprising 58 sharks, 30 skates, 13 rays and five chimaeras. The presence of 93 species was confirmed, although 30 species were encountered rarely, through validated catch ...
Bustamante, C., Vargas-Caro, C., Bennett, M. B.   +2 more
openaire   +6 more sources

Lista patrón de los tiburones, rayas y quimeras (Chondrichthyes, Elasmobranchii, Holocephali) de México

Arxius de Miscel-lània Zoològica, 2015
Checklist of sharks, rays and chimaeras (Chondrichthyes, Elasmobranchii, Holocephali) from Mexico We present an annotated checklist of the species of sharks, rays and chimaeras (chondrichthyan fishes) occurring in Mexican waters, based on a thorough ...
Del Moral-Flores, L. F., Morrone, J. J., Alcocer Durand, J., Espinosa-Pérez, H., Pérez-Ponce De León, G.   +4 more
doaj  

Metazoan Parasite Communities of Two Sympatric Shortnose Chimeras (Holocephali: Chimaeridae) from Deep Waters Associated with the Humboldt Current System: Ancient Fishes Harbor Ancient Parasites

Diversity
A total of 61 specimens of deep-sea chimaeras (Hydrolagus melanophasma = 41; Chimaera sp. = 20) were obtained during September 2017 as by-catch of the local fishery of the Patagonian toothfish (Dissostichus eleginoides, Pisces: Nototheniidae) along the ...
Marcelo E. Oliva, Luis A. Ñacari, Juan F. Espínola-Novelo, Ruben Escribano   +3 more
doaj   +1 more source

A short note on the terminal nerve in Callorhinchus milii (Callorhinchidae, Holocephali, Chondrichthyes)

, 2015
Recently, the terminal nerve has been described for holocephalan fishes in more detail. But this nerve was described only in two species (Hydrolagus colliei and Chimaera monstrosa), which represent just the most derived family (Chimaeridae) of extant holocephalans.
Licht, Martin, Bartsch, Peter
openaire   +2 more sources

Morphology and relationships of the Holocephali, with special reference to the venous system

, 1967
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources