Classification / Names
প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | Catalog of Fishes(গণ , প্রজাতি ) | ITIS | CoL | WoRMS | Cloffa
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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335); leo: This species is named after the author's son Léo (Ref. 113655).
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি সমুদতলে ভাসমান বেনথোপেলাজিক. Tropical
Africa: lower Kotto River (Ubangui River tributary, middle Congo River basin) in Central African Republic (Ref. 113655).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.9 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 113655)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় কাঁটা (মোট ) : 0; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 21 - 24; পায়ূ কাঁটা : 0; পায়ূর নরম পাখনা্তুন্ড: 26 - 28. Diagnosis: Petrocephalus leo is distinguished from all other Petrocephalus species of central Africa by the following combination of characteristics: absence of electroreceptive rosettes on head, body colouration brownish with distinct black mark at the base of pectoral fin, but no subdorsal ovoid black mark; 21 to 24 branched dorsal-fin rays and 26 to 29 branched anal-fin rays (Ref. 113655). Absence of the three typical Petrocephalus electroreceptive rosettes on the head distinguish Petrocephalus leo from most of its congeners, except P. microphthalmus, P. haullevillii, P. schoutedeni and P. zakoni; but it can be easily distinguished from these species by its unique pattern of melanin markings: a distinct black spot at the origin of the pectoral fins but no subdorsal pigmentation mark (Ref. 113655). Petrocephalus leo can be further distinguished from P. zakoni by its slender body, body depth 2.9-3.4 times in standard length vs. 2.5-2.7 times in P. zakoni; its relatively shorter dorsal fin, dorsal fin length 4.4-5.0 times in standard length vs. 4.0-4.3 times; and its smaller eye, eye diameter 3.7-4.4 times in head length vs. 3.1-3.3 times (Ref. 113655). It can be further distinguished from P. microphthalmus, P. haullevillii and P. schoutedeni, by a higher dorsal-fin ray count, 21-24 vs. less than 20 in the other species (Ref. 113655).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Lavoué, S., 2016. Petrocephalus leo, a new species of African electric fish (Osteoglossomorpha: Mormyridae) from the Oubangui River basin (Congo basin). Zootaxa 4121(3):319-330. (Ref. 113655)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
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).
ট্রফিক পর্যায়ে (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
