Classification / Names
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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Ituglanis: Greek, itys, ityos = circle + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); paraguassuensis: The name paraguassuensis refers to the type locality, rio Paraguaçu..
More on authors: Campos-Paiva & Costa.
Environment: milieu / climate zone / depth range / distribution range
นิเวศวิทยา
; น้ำจืด กลุ่มสัตว์หน้าดิน,กลุ่มสัตว์พื้นท้องน้ำ. Tropical
South America: Brazil. Known only from the type locality, rio Paraguaçu near Iassu, Estado da Bahia, northeastern
Brazil (Ref. 58334)
ขนาด / น้ำหนัก / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.3 cm SL เพศผู้/กระเทย; (Ref. 116503)
Short description
เครื่องมือที่ใช้ในการแยกชนิดสัตว์,สิ่งมีชีวิตออกจากกัน | สัณฐานวิทยา | ความยาวต่างๆ
Distinguished from all other species of the genus by the following combination of characteristics:
color pale yellow on lateral and dorsal regions of head and body, whiter on ventral. Skin covered by
several irregular pale brown blotches aligned along the body (vs. distinct color patterns in all other Ituglanis); pectoral fin-rays i,6 (vs. i,4 in I. macuniama, I. cahyensis and I. parahybae; i,5 in I. amazonicus, I. eichorniarium,
I. metae and I. nebulosus; i,7 in I. bambui, I. passensis, I. epikarsticus; i,8 in I. ramiroi except in I. parkoi, I. proops and I. laticeps); pelvic-fin-rays i,4 (vs. i,3 in I. eichorniarium and I. cahyensis or pelvic-fin absent in I. parahybae; i,5 in I. amazonicus, I. passensis except in I. gracilior, I. nebulosus, I. macunaima, I. bambui, I. ramiroi, I. epikasticus, I. parkoi, and I. guayaberensis); parietal fontanel extending to posterior edge of medial parietal border (vs. parietal fontanel reduced or vestigial, restricted to middle of medial parietal border in all other Ituglanis except in some I. amazonicus and I. proops); the unusual reduced number of vertebrae 34–36, where vertebral counts normally range 39 or more (in I. amazonicus, I. cahyensis, I. eichorniarium, I. parahybae, I. proops, I. gracilior, I. herberti, I. metae, Ituglanis sp. A).
Life cycle and mating behavior
Maturities | การสืบพันธุ์ | Spawnings | Egg(s) | Fecundities | ตัวอ่อน
Campos-Paiva, R.M. and W.J.E.M. Costa, 2007. Ituglanis paraguassuensis sp. n. (Teleostei: Siluriformes: Trichomycteridae): a new catfish from the rio Paraguaçu, northeastern Brazil. Zootaxa 1471:53-59. (Ref. 58334)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
เครื่องมือ
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00282 - 0.01550), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ระดับชั้นอาหาร (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
