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Siluriformes (Catfishes) >
Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes) > Batrochoglaninae
Etymology: Microglanis: Greek, mikros = small + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); reikoae: Named after the author's grandmother, Reiko Sugizaki Matsushima, in deep appreciation for the wonderful person she was.
Eponymy: Reiko Sugizaki Matsushima was the grandmother of the author, William Ruiz. (Ref. 128868), visit book page.
Môi trường: môi trường / vùng khí hậu / Mức độ sâu / phạm vi phân phối
Sinh thái học
; nước ngọt gần đáy. Tropical
South America: Brazil.
Bộ gần gũi / Khối lượng (Trọng lượng) / Tuổi
Chín muồi sinh dục: Lm ?  range ? - ? cm
Max length : 2.9 cm SL con đực/không giới tính; (Ref. 130492)
Mô tả ngắn gọn
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This species is distinguished from its congeners by the exclusive set of three characters: nostrils large; tube of anterior nostril distinctly large, with tip surpassing well the vertical through snout tip, and posterior nostril as large as the eye, about 90 % of orbital diameter (vs. nostrils smaller; the tube of anterior nostril shorter, with its tip not reaching or reaching the vertical through snout tip, and posterior nostril much smaller than the eye, about half the orbital diameter); smaller interorbital width 38-40% HL (vs. 40-67, except in M. pleriqueater); and with dark brown saddles diffuse on the predorsal, subdorsal, and subadipose regions (vs. dark brown saddles well-delimited, except in M. variegatus and M. eurystoma); differs further from M. leptostriatus, its most similar species and from the same drainage system, by the following features not having a light transverse band on the nuchal region (vs. presence of a thin and sinuous light band), dorsal, anal, and caudal fins without stripes (vs. each fin with a brown stripe on middle portion), epibranchial 1 with 2 gill rakers (vs. usually 1); smaller number of gill rakers on the first branchial arch 5-6 (vs. 6-9), anal fin when depressed reaching the first ventral procurrent caudal-fin rays (vs. not reaching), and more anal-fin rays 12 (vs. 9-11); further distinguished by the presence of a dark stripe on the axis of gill filaments and greater caudal peduncle length 17.1-18.5% SL (vs. 10.0-16.9 in M. carlae, M. cibelae, M. cottoides, M. eurystoma, M. garavelloi, M. iheringi, M. leptostriatus, M. maculatus, M. malabarbai, M. minutus, M. nigripinnis, M. parahybae, M. pataxo, M. pellopterygius, M. pleriqueater, M. poecilus, M. secundus, M. variegatus) (Ref. 130492).
Cross section: oval.
This species was found in small tributaries of the middle rio São Francisco basin and in the two localities where it was collected, the original riparian forest is small and livestock pastures are present in most of its surroundings (Ref. 130492).
Vòng đời và hành vi giao phối
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Ruiz, W.B.G., 2016. Three new species of catfishes of the genus Microglanis from Brazil (Teleostei: Pseudopimelodidae), with comments on the characters used within the genus. Ichthyol. Explor. Freshwat. 27(3):211-232. [22 Nov. 2016 is the publication date without ZooBank registration, 18 Nov. with an electronic prepublication date; this serves as the date for Oct., Nov. and Dec.] (Ref. 130492)
Tình trạng Sách đỏ IUCN (Ref. 130435: Version 2025-2 (Global))
Mối đe dọa đối với con người
Harmless
Sử dụng của con người
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Ước tính dựa trên mô hình
Chỉ số đa dạng phát sinh loài (Tài liệu tham khảo 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00676 (0.00289 - 0.01579), b=3.11 (2.90 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Mức dinh dưỡng (Tài liệu tham khảo 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Sự dễ bị tổn thương của nghề đánh cá (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |