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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); mainty: Named after the Malagasy word for black, mainty, referring to the species’ uniform dark pigmentation pattern in preservation and large black midlateral blotch in life (Ref. 105395).
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce bentopelágico. Tropical
Africa: Fort Dauphin region in southeastern Madagascar (Ref. 105395).
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 14.9 cm SL macho/indeterminado; (Ref. 105395)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 13; Raios dorsais moles (total) : 11 - 13; Espinhos anais: 3; Raios anais moles: 8 - 9; Vértebras: 27. Diagnosis: A Ptychochromis with palatine morphology typical of species on Madagascar’s east coast (Ref. 105395). It is distinguished from all congeners by uniform dark brownish to black colouration in preservation and in life by expansive, continuous (or nearly so), longitudinal black blotch on midlateral flank extending from posterior margin of opercle to caudal peduncle versus absent in P. inornatus, P. onilahy, P. curvidens, P. loisellei, P. insolitus, or comprising multiple distinct midlateral blotches or bars in P. ernestmagnusi, P. makira, P. grandidieri, and P. oligacanthus (Ref. 105395). Ptychochromis mainty displays little or no overlap of anterior supraneural relative to supraoccipital crest, versus marked overlap in some eastern congeners like P. makira and P. ernestmagnusi; in comparison to P. grandidieri, body depth as a percentage of standard length in P. mainty considerably less for similarly sized individuals and slope of head in profile less steep; further distinguished from P. grandidieri by fewer and more sparsely arranged teeth on second pharyngobranchial toothplate of upper pharyngeal jaw, vs. numerous, densely arranged teeth (Ref. 105395).
Body shape (shape guide): short and / or deep.
Diet is largely unknown, but stomach contains gastropod shells (Ref. 105395).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Martinez, C.M., J. Arroyave and J.S. Sparks, 2015. A new species of Ptychochromis from southeastern Madagascar (Teleostei: Cichlidae). Zootaxa 4044(1):79-92. (Ref. 105395)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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