Anatomical description of the skull of the fish Hydrolycus armatus (Jardine & Dchomburgk, 1841) (Characiformes: Cynodontidae)
Descripción del Articulo
Hydrolycus armatus (Jardine & Dchomburgk, 1841), popularly known as peixe-cachorra (dogfish) in the Tocantina region of Maranhão, is a species&n...
| Autores: | , , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2026 |
| Institución: | Universidad Nacional Federico Villarreal |
| Repositorio: | Revistas - Universidad Nacional Federico Villarreal |
| Lenguaje: | español |
| OAI Identifier: | oai:ojs2.revistas.unfv.edu.pe:article/2126 |
| Enlace del recurso: | https://revistas.unfv.edu.pe/rtb/article/view/2126 |
| Nivel de acceso: | acceso abierto |
| Materia: | Anatomy Skull Ichthyofauna Morphology Osteology Anatomía Cráneo Ictiofauna Morfología Osteología Anatomia Crânio Morfologia Osteologia |
| Sumario: | Hydrolycus armatus (Jardine & Dchomburgk, 1841), popularly known as peixe-cachorra (dogfish) in the Tocantina region of Maranhão, is a species found in flowing waters and lakes in the state of Maranhão, and plays a significant role in feeding the riverside population and local economy. The objective of this study was to describe the main bones that make up the skull of H. armatus. For this study, the material was dissected and detailed osteological descriptions of the skull were analyzedfrom lateral-dorsal and antero frontal views. Characteristics similar to those described for the species were observed, such as a set of structures located in the upper part, such as the dilator operculi above the parasphenoid, which comprises the outer edge of the inner orbital ring, in addition to robust anterior mandibular dentition that expresses the adaptive specialization of the species in its aquatic environment. This analysis contributes to future studies related to the physiological mechanisms of this fish's life, providing valuable information for investigations into its bone morphology and anatomical studies in the Araguaia-Tocantins basin. |
|---|
Nota importante:
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).