分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Auchenipteridae (Driftwood catfishes) > Centromochlinae
Etymology: Tatia: Because of Mr. C. Tate Regan (Ref. 45335); bockmanni: Named for Flávio Alicino Bockmann, Universidade de São Paulo, who collected the specimens that led us to the recognition of the species as an undescribed species (Ref. 56311).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 深度上下限 0 - 2 m (Ref. 56311). 热带
South America: Brazil.
南美洲: 巴西。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 4.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 56311)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 1; 背的软条 (总数): 5. Diagnosis: This species is distinguished from its congeners by the autapomorphic reduced ossified suprapreopercular canal. In auchenipterids the suprapreopercle is a short canal bone lying above the preopercle and containing the dorsal end of the opercular lateral line canal, which passes through it and enters the pterotic; and among centromochlines, this canal bone may vary. In some forms (as in Centromochlus perugiae, C. heckelii, and C. existimatus, a suprapreopercular ossification is absent, but in most forms it is present as a tube, completing the space between preopercle and the pterotic. In G. bockmanni, the suprapreopercle is not represented as a tube. This small canal bone is an incompletely ossified tube between the preopercle and the pterotic, with the bony portion located close to the preopercle. A fully ossified suprapreopercle was not detected in G. bockmanni. Glanidium bockmanni further differs from its congeners (albescens, ribeiroi, catharinensis, melanopterum, and leapardus in having a small adult size 29-48 mm SL (vs. 70-195 mm SL); lower jaw of equal size (vs. slightly prognathous); first nuchal plate absent (vs. present); low number of vertebrae 32 (vs. 3440); anal fin with 7 branched rays (vs. 8-11); and a less voluminous muscle adductor mandibulae A2 associated with a discrete concavity between sphenotic and pterotic (vs. thickened A2 associated with a quite pronounced concavity). It very closely resembles G. cesarpintoi , but can be distinguished from it due to larger post-cleithral process (20% SL vs. 16% SL); shorter mesethmoid (15% HL vs. 25% HL); adipose fin present (vs. absent); and pectoral-fin spine with antrorse spinules on anterior margin (vs. retrorse in cesarpintoi) (Ref. 56311).
鉴别: 这种被与它的同类区分藉由缩小的钙化 suprapreopercular 管的 autapomorphic 。 在 auchenipterids 中， suprapreopercle 是一个说谎的短管硬骨在前鳃盖骨之上而且包含鳃盖侧线管的背部末端, 这经过过它，而且进入 pterotic; 而且在 centromochlines 之中，这一个管硬骨可能改变。 在一些表格 (当在 Centromochlus perugiae ， C. heckelii 与 C. existimatus 中，一個 suprapreopercular 成骨不存在，但是在大多數的表格它是呈現成被完成間隔的空間前鰓蓋骨與 pterotic 的管。 在 G. bockmanni 中， suprapreopercle 不被代表作為一個管。 這個小的管硬骨是在前鰓蓋骨與 pterotic 之間的不完全鈣化的管, 由於多骨的部分設置接近前鰓蓋骨。 完全鈣化的 suprapreopercle 在 G. bockmanni 沒被探察。 Glanidium bockmanni 進一步有別於它的同類 ( albescens ， ribeiroi, catharinensis, melanopterum, 與 leapardus 在有一個方面小的成魚大小 29-48 mm SL;(vs.70-195 mm SL) 下頜大小相等的;(vs. 些微下巴突出) 第一個頸背的碟不存在;(vs. 存在的) 脊椎骨 32 的低數字;(vs.3440) 臀鰭有 7個分支條;(vs.8-11) 而且一個比較不卷數多肌肉內轉肌下顎一 2 伴隨著在蝶骨與 pterotic 之間的一個不連續的凹窪了.(vs. 粗的一 2 伴隨著一個相當明顯的凹窪) 它非常近似 G. cesarpintoi, 但是能被區分它由於比較大的在匙骨之後的突起 (20% SL 和 16% SL 比較); 較短的 mesethmoid(15% HL 和 25% HL 比較); 有脂鰭;(vs. 不存在) 而且胸鰭棘用向前及向上的小刺在前緣 (vs. 逆向的在 cesarpintoi 中) 上.(參考文獻 56311)
The single specimen was captured in an area with gravel and rocky bottom, near the margin of the river (F. Bockmann, pers. comm.). The fishes from Bahia were captured by seine at night in a riverine beach in clear, shallow water with sand and gravel bottom in depth less than 1.70 m. Stomach contents of two specimens were partially digested fragments of insect larvae and nymphs (Ref. 56311).
单一标本在一个区域被取得有砾石的与岩石的底部, 在河的边缘的附近 (F. Bockmann ， pers. comm.)。 此鱼从 Bahia 在一个河的海滩在晚上被曳网取得了在清澈的, 用沙与碎石底部分之一深度少于 1.70 公尺的浅水区。 二件标本的胃内含物部份地被消化昆虫幼生与蛹的碎片。 (参考文献 56311)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 巴西。
Sarmento-Soares, L.M. and P.A. Buckup, 2005. A new Glanidium from the Rio São Francisco Basin, Brazil (Siluriformes: Auchenipteridae: Centromochlinae). Copeia 2005(4):846-853. (Ref. 56311)
人类利用
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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=0.00490 (0.00197 - 0.01219), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
