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Siluriformes (Catfishes) >
Aspredinidae (Banjo catfishes) > Aspredininae
Etymology: Xyliphius: Greek, xylephion, xylarion = a little piece of wood (Ref. 45335); sofiae: Named for the daughter of first author on the specific epithet, for inspiring wisdom in her father.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
; пресноводный демерсальный. Tropical
South America: Amazon River in Peru.
Размер / Вес / Возраст
половая зрелость: Lm ?  range ? - ? cm
Max length : 4.4 cm SL самец/пол неопределен; (Ref. 116022)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 1; членистые (мягкие) лучи спинного плавника (общее число) : 4; членистые (мягкие) лучи анального плавника: 9. Xyliphius sofiae can be diagnosed from all its congeners by four autapomorphies: absence of eyes (vs. presence, though reduced); color pale, lack of pigment (vs. head and body darkly pigmented); 5 branchiostegal rays (vs. 4); and unculiferous tubercles on posterior body evenly distributed (vs. enlarged unculiferous tubercles typically arranged in five distinct rows from above pelvic-fin base to posterior end of caudal peduncle). It further differs by having one ossified proximal radial in the pectoral fin (vs. two in congeners, except X. magdalenae, not examined). It can be distinguished from all congeners except X. lepturusby having the snout tip elongated and narrowly rounded (vs. short and broadly rounded, often with small median notch), fifth ceratobranchial relatively narrow with two or three irregular rows of acicular teeth (vs. broadly expanded with larger conical teeth), anterior limits of the branchial apertures separated by a distance smaller than length of aperture (vs. greater than length of aperture), anal-fin rays modally nine (vs. seven), and lateral line extending onto base of caudal-fin rays (vs. finishing in hypural region) (Ref. 116022).
Body shape (shape guide): elongated.
Inhabits river. Caught with a large floating net stretched between two canoes and dragged downstream through the water column (Ref. 116022).
Жизненный цикл и брачное поведение
половая зрелость | размножение | нерест | икра | Плодовитость | личинки
Carvalho, T.P., R.E. Reis and M.H. Sabaj, 2017. Description of a new blind and rare species of Xyliphius (Siluriformes: Aspredinidae) from the Amazon basin using high-resolution computed tomography. Copeia 105(2):14-28. (Ref. 116022)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Оценки, основанные на моделях
Индекс филогенетического разнообразия (ссылка 82804) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00324 (0.00135 - 0.00773), b=3.03 (2.82 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Трофический уровень (ссылка 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
Уязвимость рыбной ловли (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |