Morphological Evolution of the Cave-, Spring-, and Swampfishes of the Amblyopsidae (Percopsiformes)

  title={Morphological Evolution of the Cave-, Spring-, and Swampfishes of the Amblyopsidae (Percopsiformes)},
  author={Jonathan W. Armbruster and Matthew L. Niemiller and Pamela B Hart},
  pages={763 - 777}
The Amblyopsidae is a small family of fishes from North America in which most of the species occur in caves. Despite considerable interest and study by biologists, a comprehensive morphological phylogenetic analysis of the family has not been conducted to date. We examined the skeletal morphology of all six genera and recognized species, which included 66 characters. The resulting phylogeny was compared to morphological- and molecular-based phylogenies of previous studies. Results showed a… 
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Fossil material from the Maastrichtian part of the Scollard Formation is identified as belonging to an acanthomorph fish, documenting that percopsiform fishes were present in the Western Interior of North America at least 75 Ma ago.
Morphometrics and phylogeography of the cave-obligate land snail Helicodiscus barri (Gastropoda, Stylommatophora, Helicodiscidae)
This study attempts to diagnose the potential cryptic diversity in the troglobitic land snail Helicodiscus barri, and discusses the delimitation and morphometric results and additionally provides discussion on the taxonomic and conservation implications.
Body shape variation within the Southern Cavefish, Typhlichthys subterraneus (Percopsiformes: Amblyopsidae)
This study quantified differences in body shape within the Southern Cavefish utilizing landmark-based geometric morphometrics and found significant allometry of body shape (Relative Warps) across all putative lineages.
Variation in cephalic neuromasts surface and cave-dwelling fishes of the family Amblyopsidae (Teleostei: Percopsiformes)
It is speculated that the change from the surface to the cave environment has led to papillate neuromasts in this group, which are likely shaped to detect the hydrodynamic characteristics of the boundary layer created by the swimming fish, to increase sensitivity to high frequency stimuli created by prey, predators, and conspecifics.
Cave‐adapted evolution in the North American amblyopsid fishes inferred using phylogenomics and geometric morphometrics
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It is predicted that populations inhabiting different subterranean habitats (shallow vs. deep) show divergences in specific morphological traits to better cope with the local ecological conditions and the usefulness of these species in evolutionary studies is highlighted.
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Ten apparent and exclusive synapomorphies within Ictaluridae gathered from this and previous studies suggest that Satan and Pylodictis are closest relatives.
Genesis and evolution of the square soda straws of Dry Cave, West Virginia, USA
A completely new (sub)type of calcite stalactite, similar to a soda straw but showing an external square shape, has been recently observed within Dry Cave, West Virginia, USA. Though rare speleothems


The Cave, Spring, and Swamp Fishes of the Family Amblyopsidae of Central and Eastern United States
The study and remarks to the North American cave, spring, and swamp fishes belonging to the family Amblyopsidae are limited to the species and characteristics of the family.
Investigating the intraspecific phylogenetic and biogeographic relationships of the Southern cavefish through out its range in the Interior Low Plateau supports a monophyletic Amblyopsidae dating to the early Miocene with substantial divergence among the described forms, and suggests greater diversity within Typhlichthys than previously recognized.
Comments on the relationships of the North American cave fishes of the family Amblyopsidae. American Museum novitates ; no. 2109
An osteological and myological comparison of the Amblyopsidae ( suborder Amblyopsoidei) with the typical killifishes (suborder Cyprinodontoidei).
Biogeography, phylogeny, and morphological evolution of central Texas cave and spring salamanders
The evolutionary history of this group of spring- and cave-dwelling salamanders reflects patterns of intermittent isolation and gene flow influenced by complex hydrogeologic dynamics that are characteristic of karst regions.
The Tree of Life and a New Classification of Bony Fishes
A comprehensive molecular phylogeny for bony fishes that includes representatives of all major lineages and the order Perciformes, considered by many a polyphyletic taxonomic waste basket, is defined for the first time as a monophyletic group in the global phylogeny.
Similar morphologies of cichlid fish in Lakes Tanganyika and Malawi are due to convergence.
This work sequenced a portion of the mitochondrial DNA control region from six pairs of morphologically similar taxa from Lakes Malawi and Tanganyika to indicate a separate origin of these morphologies in the two lakes, and suggests that the Tanganyikan radiation is relatively old.
Cave Adaptation in Amblyopsid Fishes
The Amblyopsidae show a sequence of adaptation to caves where they have no predators and food is the main limiting factor, and changes and irregular reproduction by few of the potentially breeding fish cause a shift of population structure toward adults in the more cave adapted species.
When are phylogenetic analyses misled by convergence? A case study in Texas cave salamanders.
Criteria that can be used to infer whether or not a phylogenetic analysis has been misled by convergence is proposed and applied in a study of central Texas cave salamanders (genus Eurycea).
The eyes of the blind vertebrates of North America. I The eyes of the Amblyopsidae
  • C. Eigenmann
  • Biology
    Archiv für Entwicklungsmechanik der Organismen
  • 2006
The Amblyopsidae offer exceptional facilities for the study of the steps in the degeneration of eyes and there are at least six species and the authors have gradations in habits from permanent epigean species to species that have for ages been established in caves.
The Hoosier cavefish, a new and endangered species (Amblyopsidae, Amblyopsis) from the caves of southern Indiana
This is the first new cavefish species described from the United States in 40 years and exemplifies how molecular data can alert us to the presence of otherwise cryptic biodiversity.