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Siluriformes (Catfishes) >
Mochokidae (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ; pH range: 6.0 - 7.5; dH range: 4 - 15; ກຸ່ມຫຼືຊະນິດປາທີ່ມີການເຄື່ອນຍ້າຍພາຍໃນນ້ຳຈືດ (Ref. 51243). Tropical; 21°C - 26°C (Ref. 2060)
Africa: Senegal, Gambia, Casamance, Géba, Volta, Niger (including the Benue) and Chad basins (Ref. 57223). Also in the Sio and Mono in Togo, Lake Nokoué (Ouémé basin) in Benin, Kwa Ibo (Ref. 57223) and Cross in Nigeria (Ref. 57223, 81251) and the Ntem in Cameroon (Ref. 81251). Present in the Nile basin (Ref. 7362, 28714). Reported from the Bohou River (AMNH 228566)(Ubangi River system, middle Congo River basin)(Ref. 41414). Report from the Kolenté (=Great Scarcies)(Ref. 3202, 81251) unconfirmed in Ref. 57223.
ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ? range ? - ? cm
Max length : 33.5 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 57961)
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 1; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; interorbital space less than 50% of head width (Ref. 57223), 89.3-102.3% snout length (Ref. 81251). Snout large and subrounded; lips moderately developed (Ref. 81251). Post-orbital length at least 60% of snout length; maxillary barbels longer than head, unbranched, without tubercles and bordered by a distinct, black basal membrane (Ref. 57223, 81251) at least as broad as barbel (Ref. 81251). Outer mandibular barbels with few short, spike-like ramifications, branches of inner mandibular barbels globose and bearing 2-3 tubercles; mandibular teeth thin and small, numbering 25-38 (Ref. 57223, 81251), movable, forming a transverse band (Ref. 81251). Entire margin of opercle smooth (Ref. 81251). Denticulations on outer margins of pectoral-fin spines relatively well developed on outer margin, but weaker than those on inner margin (Ref. 57223). Pelvic fin not reaching anal fin (Ref. 81251). Dorsal-fin spine smooth anteriorly, except for a few (4-5) apical denticles (Ref. 57223, 81251), none on posterior edge (Ref. 81251); humeral process triangular, rather deep (Ref. 57223), keeled ventrally (Ref. 57223, 81251) and sharply pointed (Ref. 81251). Adipose fin short (Ref. 57223, 81251), 1.1 to 3.4 times as long as its distance from first dorsal, and deep (base 2.1 to 4.7 times depth) (Ref. 81251), and distinctly separated from rayed dorsal fin (Ref. 57223). Anal fin with elongate anterior rays (Ref. 81251). Body covered with spots of about 1 mm in diameter; caudal fin spotted (Ref. 57223), without a single dark patch at base of each fin lobe (Ref. 81251). Caudal fin deeply forked, with upper lobes slightly longer; caudal peduncle as long as deep (Ref. 81251).
Coloration: brownish, somewhat paler on belly; type not well preserved, but still has some black spots on adipose fin, possibly suggesting an also spotted body; other specimens have in fact body and head covered with spots; fins also spotted, the spots on caudal fin aligned as a band; maxillary barbels and their basal membranes black (Ref. 57223, 81251).
Maximum TL was recorded at 22.0 cm (Ref. 57223), maximum SL 16.8 (Ref. 81251). Oviparous (Ref. 205).
Life cycle and mating behavior
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).
Paugy, D. and T.R. Roberts, 2003. Mochokidae. p. 195-268 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57223)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
ເຄື່ອງມື
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ແຫຼ່ງອີນເຕີເນັດ
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=0.01479 (0.00900 - 0.02430), b=2.83 (2.69 - 2.97), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 2.9 ±0.3 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref.
120179): ຂະໜາດກາງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 1.4 - 4.4 ປີ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
