Classification / Names
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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Nemadoras: Greek, nema, -atos = filament + Greek, dora = skin (Ref. 45335); cristinae: Named for Maria Cristina Sabaj Pérez, teacher at Friends' Central School, Wynnewood, Pennsylvania, for her contributions to the collection of the type series and to the well-being of the senior co-author, videlicet course corrections over paths polished and rough.
Eponymy: Mrs Maria Cristina Sabaj Pérez, is a teacher at Friends’ Central School, Wynnewood, Pennsylvania. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি তলদেশ বিহারী. Tropical
South America: upper Meta (Orinoco drainage)in Colombia, upper Amazonas circa Iquitos and río Santiago (tributary of Marañon) in Peru; middle Amazonas (Solimões) from mouth of Putumayo/Iça to that of Madeira, Brazil; and Madeira basin from its mouth to rio Madre de Dios in Peru.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.4 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 96153)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় কাঁটা (মোট ) : 2; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 6. Nemadoras cristinae differs from all congeners by the possession of the following characters: 3-9 premaxillary teeth in approximately two rows in juveniles and adults; outermost teeth weakly spatulate and innermost more acicular (vs. premaxillary edentulous in adults of all congeners and limited to 1-6 acicular teeth in juveniles of N. elongatus, N. humeralis, N. leporhinus and N. ternetzi); and mental barbels with extremely elongate (filiform) papillae, length of longest about 4-7 times its width at base (vs. papillae shorter, length of longest <3 times its width at base). It can be further differentiated from very similar species N. leporhinus, by having shaft and primary fimbriae of maxillary barbel smooth (vs. outer margin of shaft and margins of primary fimbriae with distinct secondary fimbriae) (Ref. 96153).
Occurs in the main channels of whitewater (sediment rich) rivers. Collected using gill nets, bottom trawls to depths of 0.6-13.9 m, and long floating nets pulled by canoe in the main channels of large rivers. Feeds on larval insects (Ref. 96153).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Sabaj Pérez, M.H., H. Mariangeles Arce, L.M. Sousa and J.L.O. Birindelli, 2014. Nemadoras cristinae, a new species of thorny catfish (Siluriformes: Doradidae) with redescription of its congeners. Proc. Acad. Nat. Sci. Philadelphia 163(1):133-178. (Ref. 96153)
IUCN Red List Status (Ref. 130435: Version 2024-1)
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