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Ceratoglanis pachynema  Ng, 1999

Club-barbel sheatfish
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Image of Ceratoglanis pachynema (Club-barbel sheatfish)
Ceratoglanis pachynema
Picture by Panitvong, N.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 辐鳍鱼纲 (条鳍鱼) > Siluriformes (Catfish) > Siluridae (Sheatfishes)
Etymology: Ceratoglanis: Greek, keras, -atos = horn + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335);  pachynema: From pachys, Greek for thick and nema, Greek for thread, in reference to the thickened maxillary barbels of mature males.

环境 / 气候 / 范围 生态学

; 淡水 居于水底的.    , preferred ?

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Asia: Chao Phraya and Mekong drainages. Previously misidentified as Ceratoglanis scleronema from the Chao Phraya drainage.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 43281)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 背的软条 (总数): 0; 臀鳍软条: 90 - 101; 脊椎骨: 63 - 64. Snout with a gently sloping ventral profile (ventral angle of snout 40°-42°), relatively fewer anal-fin rays (90-101), and larger eyes (eye diameter 13.0-16.4% HL) set closer together (interorbital distance 33.7-36.6% HL). Mature males have membranous extensions on both the anterior and posterior edges of the maxillary barbel. Pectoral spine and articulated segments sexually dimorphic in mature individuals. Males with spine broad and somewhat flattened dorsoventrally, with 10 distinct posterior serrate, increasing in size distally; proximal articulated segments with 17 well-developed posterior serrae; distal-most segments have smaller serrae. Females or juveniles with spine slender and without serrae; proximal articulated segments with 6 minute posterior serrae; distal segments with 5 minute serrae (Ref. 38651). Absence of dorsal fin; short stiff hooked maxillary barbels; posterior nostril above front margin eye (Ref. 43281).

生物学特性     字汇 (例如 epibenthic)

Inhabits mainstream river. Carnivorous, feeding on insects and benthic fauna (Ref. 58784).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼


主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Ng, H.H., 1999. A review of the Southeast Asian catfish genus Ceratoglanis (Siluriformes: Siluridae), with the description of a new species from Thailand. Proc. Calif. Acad. Sci. 51(9):385-395. (Ref. 38651)

世界自然保护联盟红皮书 (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

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