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Showing 1 to 20 of 31 for “"teleostei"”.
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Functional anatomy of the Macrouridae (Teleostei, Gadiformes)
Osteology and myology of the head of 21 species of macrourids and two closely related species are described. A general model of the mechanics of the macrourid head during feeding has been developed based on the anatomical findings. The structure of the head and integration of morphological units …
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Sistemática e biogeografia de Rypticus (Teleostei: Serranidae)
Soapfishes of the genus Rypticus Cuvier are reviewed. Rypticus macrostigmus Courtenay and R. brachyrhinus Courtenay are shown to be junior synonyms of R. bornoi Beeb e Tee- Van and R. randalli Courtenay respectively. Among serranids of the tribe Grammistini, monophyly of the genus is supported by …
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Vergleichende Untersuchungen an der Netzhaut von Atheriniformes (Teleostei)
Die vorliegende Arbeit stellt eine vergleichende –anatomische und physiologische- Untersuchung an der Netzhaut von Atheriniformes (Hornhechte, fliegende Fische, Halbschnäbler, Ährenfische, Zwischenkärpflinge, u. a.) dar. Ziel dieser Studie ist es, unter Berücksichtigung der verwandtschaftlichen …
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Monofiletismo de Erythrinidae (Teleostei, Characiformes): discussão das sinapomorfias e outros caracteres diagnósticos
The Erythrinidae are a group of Neotropical fishes with a wide distribuition in most of South and Central American river drainages. Due to their own peculiar features, its members were several times used as models in studies regarding different areas of the ichthyology. However, this group was only …
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Revisão taxonômica das espécies brasileiras do gênero Pomadasys Lacépède, 1802 (Teleostei: Haemulidae)
The taxonomy of the species of Pomadasys Lacépède from the coast of Brazil is reviewed. Of the 12 species of the genus, or of its synonyms recorded from Brazil, only Pomadasys corvinaeformis (Steindachner, 1868) and P. ramosum (Poey, 1860) were confirmed based on examined material. A third species, …
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Caracterizaçăo cromossômica de espécies da família Ariidae (Teleostei, Siluriformes) pertencentes ao litoral paranaense /
Orientadora : Marta Margarete Cestari
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Osteologia e afinidades filogenéticas de Paraelops cearensis Silva Santos, 1971 (Pisces, Teleostei, Elopiformes)
A osteologic redescription of Paraelops cearensis Silva Santos, 1971 is made with basis in new samples. That species is kept temporarily within Elopidae by the structure and disposition of hiopalatine, opercular, and neurocranium bones. Only Paraelops, Elops, and Davichthys are included in that …
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Isozymic and Morphological Differentiation of the Neural Retina of the Green Sunfish (Teleostei, Centrarchidae)
Made available in DSpace on 2015-05-14T14:57:12Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7511543.PDF: 6197727 bytes, checksum: b92534d3bc6a56b9d0413a9922836da5 (MD5) Previous issue date: 1974
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Inheritance of Dorsal Fin Coloration in the Metriaclima Species Complex (Teleostei: Cichlidae) of Lake Malawi
The rock-dwelling cichlids (mbuna) of Lake Malawi have undergone an explosive evolution, giving rise to an assemblage of 300-500 species within the last one million years. Most widespread mbuna 'species' are characterized by the presence of local endemic populations, differing primarily in …
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Adaptive radiation, speciation, and reproductive isolation in African weakly electric fish : (Genus Campylomormyrus, Mormyridae, Teleostei)
The ultimate aim of this study is to better understand the relevance of weak electricity in the adaptive radiation of the African mormyrid fish. The chosen model taxon, the genus Campylomormyrus, exhibits a wide diversity of electric organ discharge (EOD) waveform types. Their EOD is age, sex, and …
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Global Conservation Status and Threat Patterns of the World’s Most Prominent Forage Fishes (Teleostei, Clupeiformes)
<p>Conserving biodiversity is one of the greatest ethical responsibilities and challenges humans face. Understanding the conservation status of taxonomic groups provides a systematic way to prioritize efforts to combat biodiversity loss. The 405 species within the order Clupeiformes are the …
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Phylogenomics and Geometric Morphometrics Define Species Flocks of Snowtrout (Teleostei: Schizothorax) in the Central Himalayas
<p>Schizothorax (Snowtrout) is a genus of medium-sized minnows (Cypriniformes) inhabiting glacier-fed streams, rivers, and lakes in the Himalayas. There are more than 30 species of Schizothorax across the region. The speciation and diversity of the Snowtrout in the vast hinterlands of the Himalayan …
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Análise comparada de caracters reprodutivos e da glândula branquial de duas espécies de cheirodontinae (Teleostei: Characidae)
Este trabalho descreve comparativamente o ciclo reprodutivo de duas espécies de Cheirodontinae: Compsura heterura, com inseminação, e Odontostilbe sp., de fecundação externa e analisa a sua relação com o desenvolvimento dos caracteres sexuais secundários, como ganchos da nadadeira anal e glândula …
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Maze Learning and Recall in Weakly Electric Fish, Mormyrus rume proboscirostris Boulenger 1898 (Teleostei, Mormyridae): Sensory Bases
<p>Animals use navigational strategies ranging from taxes, landmark and compass orientation, and path integration to cognitive maps. The debate concerning the use of mapping strategies, or less complex mechanisms such path integration, landmark orientation, or dead reckoning is far from settled. …
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Os peixes da família Sternoptychidae (Teleostei, Stomiiformes) do talude e plataforma continental brasileira entre 11ºS e 23ºS
There are very few mesopelagical samples accomplished in Brazilian waters. most of it are limited exclusively at south and southeast regions. As a consequence of it, the knowledge of the Brazilian Stemoptychidae is very limited, based on the material obtained by a few oceanographic cruises that …
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Osteologia e sistemática de Brannerion latum (Agassiz, 1841) (Teleostei : Albuliformes) do Aptiano-Albiano do nordeste do Brasil
Brannerion latum (Agassiz, 1841) is a medium elopomorph fish occurring in the Santana and Codó formations, respectively from the Lower Cretaceous of the Araripe and Parnaíba basins, Northeastern Brazil. Although this species was studied a long time ago, a detailed description of its osteology was …
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Contribuição à citotaxonomia dos Scorpaeniformes (Osteichthyes - Teleostei): estudos citogenéticos em espécies do litoral do Rio de Janeiro, Brasil
The order Scorpaeniformes is morphologically diverse and the only character defining the group is a bony suborbital stay extending posteriorly from the third infraorbital to the preopercle. This order shows a great number of systematic problems and the phylogenetic relationships within the group …
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The Comparative Osteology and Phylogeny of The Anabantoidei, With a Proposal of a New Order Luciocephaliformes (Teleostei, Pisces)
Made available in DSpace on 2014-12-04T22:46:16Z (GMT). No. of bitstreams: 1 6200640.pdf: 15197884 bytes, checksum: e6b877b3ef2fe57f114436b3bdc90da9 (MD5) Previous issue date: 1961
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