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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Ptychochrominae
Etymology: Ptychochromis: Greek, ptyx, = fold + Greek, chromis = a fish, perhaps a perch (Ref. 45335); insolitus: Name derived from the Latin, insolitus, meaning 'unusual, odd, queer', in reference to the somewhat atypical appearance of the species and the anomalous morphology of the aquarium raised specimens used for the original description (Ref. 57663).
Environment: milieu / climate zone / ລະດັບຄວາມເລິກ / distribution range
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ. Tropical
Africa: Madagascar.
ຂະໜາດ / ນ້ຳໜັກ / Age
ການຈະເລີນເຕັມໄວ: Lm ? range ? - ? cm
Max length : 24.5 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 130676)
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 13; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 11; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 3; ຄີກົ້ນຂອງປາ: 8; ສັດທີ່ມີກະດູກສັນຫຼັງ: 27. It is distinguished from congeners by a reduced number of precaudal vertebrae (12) and a reduced number of infraorbital elements (5), and also by the presence of a faint midlateral stripe, beginning just posterior to the dorsocaudal margin of the opercle and extending to caudal-fin origin (Ref. 57663). It is a comparatively shallow bodied and laterally compressed Ptychochromis (Ref. 57663). In life, base body coloration is silvery to silvery-golden, particularly below lateral midline; cheek and opercular series silvery; body golden with blackish speckles and blotches above midline, including nape, top of head, and infraorbital series; unpaired fins reddish, particularly distally, or dark gray; pectoral fins pale and reddish; pelvic fins pale reddish and may exhibit some black pigmentation along caudal margin (Ref. 57663). In preservative, ground coloration is pale yellowish-olive, with faint dark stripe present along lateral midline, more pronounced posteriorly; fins hyaline to pale yellowish-olive (Ref. 57663).
Body shape (shape guide): short and / or deep.
Life cycle and mating behavior
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Stiassny, M.L.J. and J.S. Sparks, 2006. Phylogeny and taxonomic revision of the endemic Malagasy genus Ptychochromis (Teleostei: Cichlidae), with the description of five new species and a diagnosis for Katria, new genus. Am. Mus. Novit. 3535:1-55. (Ref. 57663)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
ເຄື່ອງມື
Special reports
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Phylogenetic diversity index (ເອກະສານອ້າງອີງ
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (ເອກະສານອ້າງອີງ
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (ເອກະສານອ້າງອີງ
120179): ສູງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງໜ້ອຍກວ່າ 15 ເດືອນ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
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