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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
Eponymy: Baron Alphonse de Haulleville (1860–1938) was the Director (1910–1927) of the Musée du Congo Belge at Tervuren (RMCA). As such he would have been well known to Boulenger who was at BMNH, having moved there from Belgium (1890). (Ref. 128868), visit book page.
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный демерсальный. Tropical
Africa: Kouilou-Niari (Ref. 53765) and Chiloango River basins (Ref. 41597). Report from the Ubangi River (middle Congo River basin) (Ref. 94857) questionable and needs confirmation. Presence in some swamps and minor tributaries of the Congo River estuary tentatively confirmed (Ref. 12818).
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm TL самец/пол неопределен; (Ref. 41597)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 18 - 21; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 26 - 28. Petrocephalus haullevillii is distinguished from P. congicus by the absence of a rosette of electroreceptor organs above the eye (Ref. 91771). Teeth bicuspid, 11-14 in upper jaw and 16-18 in lower jaw (Ref. 41597).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Kramer, B., R. Bills, P. Skelton and M. Wink, 2012. A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species. Journal of Natural History 46(35-36):2179-2258. (Ref. 91771)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-2)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00684 - 0.03506), b=2.86 (2.68 - 3.04), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).