Classification / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Petrotilapia: Latin,petra = stone + Bechuana, African native thiape = fish (Ref. 45335); xanthos: The name xanthos, from the Greek, meaning yellow referring to the yellow breeding color of males; a noun in apposition (Ref. 87181).
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি ভাসমান. Tropical; 10°S - 11°S, 34°E - 35°E
Africa: Gallireya Reef in Lake Malawi, Malawi (Ref. 87181).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.0 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 87181)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় কাঁটা (মোট ) : 17 - 19; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 6 - 10; পায়ূ কাঁটা : 3; পায়ূর নরম পাখনা্তুন্ড: 7 - 9. Diagnosis: The absence of a dark submarginal band in the dorsal fin distinguishes Petrotilapia xanthos from P. microgalana, P. genalutea, P. nigra, P. chrysos, P. mumboensis, and P. pyroscelos which have such a band (Ref. 87181). Adult males of P. xanthos are yellow, which distinguishes them from P. tridentiger, which are light blue with dark blue bars; they are also distinct from those of P. flaviventris, and P. palingnathos; males of P. flaviventris are yellow on ventral and mid flank with scales outlined in blue; the dorsal one-third is blue to gray with yellow and orange highlights; cheeks and throat yellow to orange; adult male, and female, P. palingnathos have distinctly retrognathous jaws and can thus be distinguished from those of P. xanthos (Ref. 87181). Females of P. xanthos are light brown, which distinguishes them from those of P. tridentiger, which are brown, from P. chrysos and P. microgalana, which are golden yellow, from those of P. flaviventris, which are yellow brown with interrupted black stripes and fading to dark brown dorsally; the melanin pattern in females of P. xanthos have both horizontal and vertical elements, which distinguishes them from those of P. chrysos, which lack a distinct melanin pattern and are completely yellow, and from P. microgalana and P. flaviventris, which have no vertical elements in their melanin pattern (Ref. 87181).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Lundeba, M., J.R. Stauffer Jr. and A. F. Konings, 2011. Five new species of the genus Petrotilapia (Teleostei: Cichlidae), from Lake Malawi, Africa. Ichthyol. Explor. Freshwat. 22(2):149-168. (Ref. 87181)
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 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.4 ±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).
