Comparative study of lower pharyngeal jaw structure in two phenotypes of Astatoreochromis alluaudi (teleostei: Cichlidae)

@article{Huysseune1994ComparativeSO,
  title={Comparative study of lower pharyngeal jaw structure in two phenotypes of Astatoreochromis alluaudi (teleostei: Cichlidae)},
  author={Ann Huysseune and Jean-Yves Sire and François Jean Meunier},
  journal={Journal of Morphology},
  year={1994},
  volume={221}
}
The potentially molluscivorous East‐African cichlid Astatoreochromis alluaudi is known to exhibit phenotypic plasticity in its pharyngeal jaw apparatus. We examined wild‐caught (snail‐eating) fish and specimens experimentally reared on soft food for differences in bone structure in their lower pharyngeal jaw (LPJ). The LPJ is built up of two halves, each of which consists of four structural units: a bony dentigerous, sutural and cortical plate, surrounding a medullary cavity containing sparse… Expand
Phenotypic plasticity in the lower pharyngeal jaw dentition of Astatoreochromis alluaudi (Teleostei: Cichlidae).
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Serial microradiographs in the caudal area of the lower pharyngeal jaw indicated that functional teeth in hard-food specimens more often show a successor below, which may be due to more time needed for larger replacement teeth to form and possibly to a shorter replacement cycle linked to the greater wear of the functional teeth. Expand
A morphometric analysis of polymorphism in the pharyngeal dentition of Cichlasoma minckleyi (Teleostei: Cichlidae).
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