Читать книгу Clinical Guide to Fish Medicine - Группа авторов - Страница 60

Of these, tetras and hatchetfish are common in public and home aquariums, e.g. neon tetras (Paracheirodon innesi). Characiformes, along with Cypriniformes, Siluriformes, and Gymnotiformes have a Weberian apparatus (bones which connect the swim bladder to the inner ear). They have ctenoid or ctenoid‐like scales, apart from the naked tetra (Gymnocharacinus bergii) which lacks scales. Feeding specializations of this group are diverse, including detritivory, herbivory, planktivory, predatory; some have well‐developed teeth (Helfman et al. 2009).