New locality for Lepidosiren paradoxa Fitzinger, 1837 (Dipnoi: Lepidosirenidae) in Argentina [PDF]
Check List, 2017 In this study has document a new locality and thus a southern extension of the distribution of the lungfish Lepidosiren paradoxa to the coast of the Entre Rios Province in the lower Paraná River. This finding increases the range of L.
Evelyn Romina Vallone
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Histology of juvenile skin of Lepidosiren paradoxa Fitzinger, 1837 (Sarcopterygii, Dipnoi) [PDF]
Anais Da Academia Brasileira De Ciencias, 2019 : The skin of three juvenile Lepidosiren paradoxa specimens was examined. The epidermis was composed of a polystratified epithelium resting on a basement membrane, including mucus-secreting cells, and a cuticle of mucopolysaccharides on the surface.
Luis Alberto Romano
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The South American lungfish Lepidosiren paradoxa as a new host for Trichodina quelenii [PDF]
Brazilian Journal of Biology, 2018 Recently, the South American lungfish Lepidosiren paradoxa is being found inside aquaculture ponds, and even though there are a few studies on their parasite fauna, there is still much to be reported.
G. Pala +3 more
doaj +7 more sources
Type 1 vomeronasal receptor expression in juvenile and adult lungfish olfactory organ [PDF]
Zoological Letters, 2023 Lungfish are the most closely related fish to tetrapods. The olfactory organ of lungfish contains lamellae and abundant recesses at the base of lamellae.
Shoko Nakamuta +5 more
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von Willebrand factor D and EGF domains is an evolutionarily conserved and required feature of blastemas capable of multitissue appendage regeneration. [PDF]
Evol Dev, 2020 Identification of a gene, von Willebrand Factor D and EGF Repeats (vwde), whose expression is highly enriched in axolotl limb blastemas prompted comparative experimentation in lungfish, Polypterus, and Xenopus. Vwde expression is induced in key tissues during regeneration in all four models (fins in lungfish and polypterus; tail in Xenopus embryos ...
Leigh ND +11 more
europepmc +2 more sources
The conundrum of pharyngeal teeth origin: the role of germ layers, pouches, and gill slits. [PDF]
Biol Rev Camb Philos Soc, 2022 ABSTRACT There are several competing hypotheses on tooth origins, with discussions eventually settling in favour of an ‘outside‐in’ scenario, in which internal odontodes (teeth) derived from external odontodes (skin denticles) in jawless vertebrates. The evolution of oral teeth from skin denticles can be intuitively understood from their location at ...
Huysseune A, Cerny R, Witten PE.
europepmc +2 more sources
Pre-Hispanic fishing practices in interfluvial Amazonia: Zooarchaeological evidence from managed landscapes on the Llanos de Mojos savanna. [PDF]
PLoS ONE, 2019 Recent evidence suggests the existence of Pre-Hispanic fisheries in savanna areas of the Amazon basin. How these fisheries may have functioned is still poorly known.
Gabriela Prestes-Carneiro +4 more
doaj +2 more sources
The Limbs of Lepidosiren Paradoxa [PDF]
Nature, 1894 DR. GUNTHER, in his valuable work, “The Study of Fishes,” says of Natterer's Lepidosiren from the Amazons, “It is one of the greatest desiderata of natural history collections.” In fact, only seven years ago the opinion was current that Natterer had been deceived by specimens of Protopterus imported from Africa, or that in some way African specimens ...
Lankester E Ray
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Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates. [PDF]
Biol Rev Camb Philos SocABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Schwarz D +6 more
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V. The the external features the development of lepidosiren paradoxa, Fitz [PDF]
Philosophical Transactions of the Royal Society of London Series B Containing Papers of A Biological Character, 1900 Abstract The following paper constitutes the first instalment of an account of the development of Lepidosiren. The material upon which it is based was obtained during a sojourn which I made for the purpose amongst the swamps of the Gran Chacot during the years 1896 and 1897. I should in some ways have preferred not to publish until in
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