Canais e poros do sistema látero-sensorial cefálico de Characiformes (Ostariophysi): anatomia e seu significado filogenético

Pastana, Murilo Nogueira de Lima

doi:10.11606/d.59.2014.tde-06012015-123252

Cited by 3 publications

(5 citation statements)

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“…Some authors hypothesize a fusion of the extrascapular with the pterotic and the remaining bones being the post‐temporal and supracleithrum (Allis, ; Lundberg, ), whereas others argue in favour of a post‐temporal and supracleithrum fusion, identifying the two bones as an extrascapular and compound posttemporosupracleithrum (Arratia & Gayet, ; Arratia & Huaquín, ; Fink & Fink, , ). The typical ostariophysan extrascapular is primarily formed by the ossified canal segments of the postotic and supratemporal canals, which are bound to each other and attached to a small dermal lamella (Allis, ; Harrington, ; Herrick, ; Pastana, ). The bone thus contains part of these two lateral‐line tubules that envelop the lateral‐line neuromasts NPO3 and NST1 (Figure (a)).…”

Section: Discussionmentioning

confidence: 99%

Description of a new Pimelodella (Siluriformes: Heptapteridae) species with a discussion on the upper pectoral girdle homology of Siluriformes

Slobodian

Pastana

2018

Journal of Fish Biology

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A new species of Pimelodella is described from several right-bank tributaries of the Rio Madeira basin in Amazonas and Rondônia states, Brazil. The new species differs from all congeners by the supraoccipital process not reaching the anterior nuchal plate, 43-45 total vertebrae, maxillary barbels reaching between adpressed anal-fin terminus and caudal-fin origin, epiphyseal branch of supraorbital laterosensory canal emerging as two distantly-positioned pores and a conspicuous black mark at distal third of dorsal fin, between dorsal-fin spine and third branched ray. A detailed description of the cephalic laterosensory system of the new species is provided and contrasted with other Siluriformes and Ostariophysi. A discussion regarding homology of the catfish upper pectoral girdle bones is offered in light of modifications of the postotic and supratemporal lateral-line canals. Based on the placement of the pterotic branch of the postotic canal, it is concluded that the extrascapula is fused to the pterotic in Siluriformes. Results presented herein offer an example of how lateral-line morphology can be used as a compelling source of evidence to help determine homology of cranial and upper pectoral girdle bones.

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Section: Discussionmentioning

confidence: 99%

Description of a new Pimelodella (Siluriformes: Heptapteridae) species with a discussion on the upper pectoral girdle homology of Siluriformes

Slobodian

Pastana

2018

Journal of Fish Biology

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“…Previous discussions focused on the question of whether the canal neuromasts of the lateral‐line system play a causal role in the formation of the lateral‐line canals or the dermal bones with which they are associated (e.g. Pehrson, 1922; De Beer, 1937; Westoll, 1941; Moy‐Thomas, 1941; Lekander, 1949; Graham‐Smith, 1978; Tarby and Webb, 2003; Pastana, 2014). However, the development of bones associated with lateral‐line canals in P. senegalus illustrates four ontogenetic pathways by which this interaction may occur, which differ with respect to the nature of the spatial and temporal interaction between the two components that form compound bones.…”

Section: Resultsmentioning

confidence: 99%

“…There has been a discussion in the literature about the existence of two distinct patterns of development of bones associated with lateral‐line canals: a one‐component pattern and a two‐component pattern (Lekander, 1949; Tarby and Webb, 2003; Pastana, 2014). In the two‐component pattern, the lateral‐line canal system comprises an independent layer of ossifications that interacts with an underlying layer of membranodermal ossifications.…”

Section: Resultsmentioning

confidence: 99%

“…The proposal was more formally presented by Allis (1898: 430), who stated: ‘it is highly probable, though certainly not as yet established, that a bone or a part of a bone developed in any particular fish in relation to a particular part of the lateral‐line system is always the homologue of the bone, or part of a bone, developed in relation to the same part of the lateral‐line system in any other fish or animal‘. Since that time, the relationship between lateral‐line canals and skull bones has been the subject of several studies and has raised many controversies, especially regarding the role of lateral‐line organs in osteogenesis (discussed in Tarby and Webb, 2003 and Pastana, 2014). Some authors (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Ontogeny and homology of cranial bones associated with lateral‐line canals of the Senegal Bichir,Polypterus senegalus(Actinopterygii: Cladistii: Polypteriformes), with a discussion on the formation of lateral‐line canal bones in fishes

et al. 2020

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The association between lateral‐line canals and skull bones in fishes has been the subject of several studies and raised a series of controversies, particularly with regard to the hypothesized role of lateral‐line organs (i.e. neuromasts) in osteogenesis and the consequences for hypotheses of homology of the bones associated with lateral‐line canals. Polypteridae, a group of freshwater fishes that occupies a key phylogenetic position as the most basal extant lineage of ray‐finned fishes (Actinopterygii), provides an interesting model for the study of the relationships between lateral‐line canals and skull bones. We describe the development of bones associated with lateral‐line canals in the Senegal Bichir, Polypterus senegalus, and use these data to re‐address previous hypotheses of homology of skull bones of polypterids. We demonstrate that the lateral‐line canals constitute a separate component of the dermatocranium that may interact with a membranodermal component, thereby forming compound bones in the adult. Differences in the interactions between these components determine the characteristics of the development of each independent bone in the skull of adult P. senegalus. Our results shed light on long‐standing controversies about the identity of skull bones such as the rostral, preopercle, and sphenotic in Polypteridae, and suggest the presence of an ancestral two‐component pattern of formation of bones associated with lateral‐line canals in bony fishes. These findings reveal the need to re‐address previous hypotheses of homology of bones associated with lateral‐line canals in different groups of bony fishes, especially fossil taxa.

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“…We use inner arm of the os suspensorium instead of os suspensorium, and outer arm of the os suspensorium instead of rib of fourth vertebra, following Conway & Britz (2007). Terminology of cartilaginous elements of caudal fin follows Fujita (1989) and terminology of the canals of cephalic lateral line system follow the unpublished master thesis of Pastana (2014). We used the classification of Characidae from the phylogenetic analysis of Mirande (2010) and Mariguela et al (2013).…”

Section: Introductionmentioning

confidence: 99%

Moenkhausia lepidura (Kner, 1858) (Characiformes, Characidae): osteology and relationships

Darlim

Marinho

2018

Biota Neotrop.

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Cladistic analysis of fishes are mostly based on osteological studies. Phylogenetic relationships within the family Characidae are poorly known in part due to the lack of anatomical studies of its members, including osteology. The present contribution aims to offer a detailed description of all bony complexes of Moenkhausia lepidura. Two remarkable morphological conditions present in the species are discussed: a bony lamella on the proximal portion of the ribs and a basal expansion of the gill rakers. A morphological survey of several species of Characidae along with available phylogenetic information of the family indicates the putative relationships of Moenkhausia lepidura with other small characids presenting bony lamella on ribs and a dark mark on the caudal fin.

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Canais e poros do sistema látero-sensorial cefálico de Characiformes (Ostariophysi): anatomia e seu significado filogenético

Cited by 3 publications

References 54 publications

Description of a new Pimelodella (Siluriformes: Heptapteridae) species with a discussion on the upper pectoral girdle homology of Siluriformes

Description of a new Pimelodella (Siluriformes: Heptapteridae) species with a discussion on the upper pectoral girdle homology of Siluriformes

Ontogeny and homology of cranial bones associated with lateral‐line canals of the Senegal Bichir,Polypterus senegalus(Actinopterygii: Cladistii: Polypteriformes), with a discussion on the formation of lateral‐line canal bones in fishes

Moenkhausia lepidura (Kner, 1858) (Characiformes, Characidae): osteology and relationships

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