Classification / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Pseudotothyris: Greek, pseudes = false + Greek, ous, otis = ear + Greek, thyris, -idos = little door (Ref. 45335); ignota: Derived from the Latin ignotus, meaning unknown or ignored, because this species has been identified as Pseudotothyris obtusa since the description of the older species in 1911..
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल ड़िमरसल. Tropical
South America: coastal drainages from Iguape in São Paulo state to São João do Rio Vermelho in Santa Catarina state, Brazil.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.3 cm SL पुल्लिंग / अलिंग; (Ref. 116384)
Short description
आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय सौफट रेज़ (सम्पूर्ण): 8-9; ऐनल सौफट रेज़: 6; जानवरों की रीड़ का जोड़: 28 - 29. Pseudotothyris ignota is distinguished from all congeners by possessing the anterior margin of snout with an odontode-free band (vs. anterior margin of snout completely covered by odontodes). It can be further differentiated from Pseudotothyris obtusa by having 32-47 teeth on the upper pharyngeal toothplate (vs. 20-30); 15-31 teeth on ceratobranchial 5 (vs. 12-15); first anal-fin pterygiophore contacting the 13th vertebra (vs. 12th); and metapterygoid-hyomandibula suture complete, the bones contacting each other dorsally to the suture (vs. metapterygoid-hyomandibula suture reduced, the bones not contacting each other dorsally to the suture. It can be further distinguished from Pseudotothyris janeirensis by the presence of three transverse dark saddles on the dorsum (vs. absence); absence of spinelet (vs. presence); generally presence of subocular cheek plate (vs. always absence); and odontodes on lateral plates randomly distributed (vs. odontodes aligned in well-defined series) (Ref. 116384).
Inhabits coastal drainages from Iguape in São Paulo state to São João do Rio Vermelho in Santa
Catarina state, Brazil. Occurs sympatrically with Pseudotothyris obtusa in small coastal drainages in Iguape, Cananéia, and Ilha Comprida, which are adjacent to Ribeira de Iguape basin (Ref. 116384).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Martins, F.O., H.A. Britski and F. Langeani, 2014. Systematics of Pseudotothyris (Loricariidae: Hypoptopomatinae). Zool. J. Linn. Soc. 170:822-874. (Ref. 116384)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
अधिक जानकारी
आम नामउपशब्दचपायचयपरभक्षीईकोटोकसीकोलौजीपुनरुत्पत्तिपरिपक्व अवधिमछलीऔ का अंडे देनाSpawning aggregationFecundityअंडेEgg development
Age/Sizeबाढ़Length-weightLength-lengthLength-frequenciesमौरफोमैटरिक्सआकृति विज्ञानलार्वालारवल गतिकीभर्तीबहुतायतBRUVS
संदर्भजलीयकृषिजलीयकृषि रूपरेखाखींचआनुवंशिकीElectrophoresesहैरेटिबिलटीबीमारीप्रक्रमणNutrientsMass conversion
सहयोगीयोतस्वीरेStamps, Coins Misc.ध्वनिसिगुयटिरारफ्तारतैरने के प्रकारगिल क्षेत्रOtolithsदिमागदृष्टि
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00337 - 0.01709), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.4 ±0.1 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
