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Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species
TLDR
The Hoplias lacerdae group is defined as containing generally large trahiras with the medial margins of dentaries running parallel to each other and lacking teeth on the basihyal compared to the H. malabaricus group in which the medial margin of the dentaries converge towards the mandibular symphysis. Expand
Priocharax nanus, a new miniature characid from the rio Negro, Amazon basin (Ostariophysi: Characiformes), with an updated list of miniature Neotropical freshwater fishes
TLDR
A miniature fish that retains as an adult the larval rayless pectoral fin, a diagnostic character of the genus Priocharax, is described from the rio Negro, Brazil. Expand
Cyanogaster noctivaga, a remarkable new genus and species of miniature fish from the Rio Negro, Amazon basin (Ostariophysi: Characidae)
TLDR
The new taxon can be distinguished from all other members of the Stevardiinae by having the reduced number of i + 5 pelvic-fin rays and the presence of a single conical tooth in the outer premaxillary tooth series. Expand
Taxonomic Study of Hoplias Aimara (Valenciennes, 1846) and Hoplias macrophthalmus (Pellegrin, 1907) (Ostariophysi, Characiformes, Erythrinidae)
TLDR
Analysis of meristic and morphometric data resulted in the recognition of a single species of giant trahiras Hoplias aimara, which is distinguished from congeners by the presence of a vertically-elongate dark spot on the median portion of the opercular membrane and by the absence of the accessory ectopterygoid. Expand
Surface and subterranean ichthyofauna in the Serra do Ramalho karst area, northeastern Brazil, with updated lists of Brazilian troglobitic and troglophilic fishes
TLDR
After an ichthyofaunistic survey in several epigean (surface) water bodies of the Serra do Ramalho, southern Bahia, conducted in May 2007, 44 species were recorded; in addition, three non-troglomorphic (normally eyed and pigmented) and two troglomorph species wereRecorded only in caves, representing a little more than one fourth of the total registered in the literature for the entire Rio Sao Francisco basin. Expand
Ecological aspects of the surf-zone ichthyofauna of Itamambuca Beach, Ubatuba, SP
TLDR
Foi realizado levantamento ictiologico da zona de arrebentacao da praia de Itamambuca, Ubatuba, Sao Paulo, com o intuito de se avaliar a composicao, estrutura e dinâmica da fauna de peixes atraves de descritores da comunidade. Expand
Skeletal development and ossification sequence of the characiform Salminus brasiliensis (Ostariophysi: Characidae)
TLDR
The skeletal development of the basal characid Salminus brasiliensis is studied to provide an ontogenetic approach that can be used in further comparative investigations. Expand
Ontogenetic development of Heterocharax macrolepis Eigenmann (Ostariophysi: Characiformes: Characidae) with comments on the form of the yolk sac in the Heterocharacinae
TLDR
The development of Heterocharax macrolepis is studied, a heterocharacine whose adult specimens from the aquarium trade were kept and spawned at around 23-24oC, and the different yolk sac shape in other representatives of the Characiformes may indicate that this peculiar Yolk sac represents an additional synapomorphy of the Heter Cocharacini. Expand
Osteology of Priocharax and remarkable developmental truncation in a miniature Amazonian fish (Teleostei: Characiformes: Characidae)
TLDR
The present detailed osteological study revealed that 21 bones are absent and nine other skeletal structures are simplified in Priocharax when compared to other characids, demonstrating the importance of developmental studies to better understand morphological evolution of miniaturized, truncated taxa, and to generate hypotheses of their relationships. Expand
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