
钩鲶属(Ancistrus)
俗称胡子类
此属物种成年体型通常不会超过20cm,体型较扁,头部相对更宽,腮棘呈现短粗而向前弯折的钩状(“Ancistrus”源于古希腊语中的“钩子”一词)
此属拥有甲鲶科中最大的两性特征:成年雄性的吻部生有明显的肉质触须,雌性缺少或仅在吻部边缘稀疏分布,幼体无肉须。此器官是一种新型的繁殖策略:雌性可能更偏好正处于护苗行为的雄性,雄性通过肉须的摆动从而模仿幼鱼来达到欺骗雌性的目的【1】。

成年雄性钩鲶的肉须
分布上钩鲶属是最广的种群之一,大量分布与亚马逊盆地的河流与浅滩中,同时存在3种唯一已知的洞穴种甲鲶(A. cryptophthalmus,A. galani,A. formoso)【2】
此外钩鲶拥有鱼类乃至脊椎动物中罕见的X0性别决定系统(X0 sex-determination system)【3】


↑阿戈斯钩鲶

↑阿瓜波钩鲶 L032

↑Ancistrus alga

↑Ancistrus amaris

↑玻利维亚钩鲶

↑玻利维亚钩鲶近亲种

↑短线钩鲶

↑短鳍钩鲶

↑蟾钩鲶

↑哥伦比亚钩鲶

↑刺鳞钩鲶

↑查氏钩鲶

↑须钩鲶


↑须钩鲶近似种↑

↑克拉罗钩鲶 LDA008

↑静钩鲶

↑隐眼钩鲶

↑库亚巴钩鲶

↑达氏钩鲶

↑长鳍钩鲶 L183

↑蕾钩鲶

↑猬钩鲶

↑真斑钩鲶

↑法尔孔钩鲶

↑美丽钩鲶

↑微黄钩鲶

↑加氏钩鲶

↑Ancistrus greeni

↑裸吻钩鲶

↑异吻钩鲶

↑盔钩鲶 L059

↑贾塔恩钩鲶

↑杰氏钩鲶

↑Ancistrus karajas

↑Ancistrus kellerae

↑Ancistrus krenakarore

↑秘鲁钩鲶

↑Ancistrus leoni

↑白点钩鲶

↑白点钩鲶近似种

↑线纹钩鲶

↑石纹钩鲶

↑Ancistrus luzia


↑大眼钩鲶 LDA074

↑斑驳钩鲶

↑软身钩鲶

↑Ancistrus maldonadoi

↑Ancistrus marcapatae

↑马氏钩鲶

↑马托格罗河钩鲶

↑Ancistrus maximus

↑大口钩鲶

↑小钩鲶

↑Ancistrus miracollis

↑山钩鲶

↑马勒钩鲶

↑多棘钩鲶

↑Ancistrus nationi

↑裸头钩鲶 L304

↑西域钩鲶

↑奥氏钩鲶

↑狭柄钩鲶

↑Ancistrus patronus

↑巴拉圭钩鲶 LDA053

↑梨形钩鲶

↑蛙头钩鲶 L034

↑蛙头钩鲶近亲种

↑赖斯钩鲶

↑Ancistrus saudades

↑Ancistrus sericeus

↑Ancistrus shuar

↑大棘钩鲶

↑柱头钩鲶

↑坦博钩鲶

↑汤氏钩鲶


↑特氏钩鲶

↑托利马河钩鲶

↑窄体钩鲶

↑特立尼达钩鲶

↑光灿钩鲶

↑杂色钩鲶

↑羞钩鲶

↑考卡河钩鲶

↑Ancistrus yutajae
资料来源:
文献参考:
【1】Sabaj, M.H.; Armbruster, J.W.; Page, L.M. (1999). "Spawning in Ancistrus (Siluriformes: Loricariidae) with comments on the evolution of snout tentacles as a novel reproductive strategy: larval mimicry" (PDF). Ichthyological Explorations of Freshwaters. 10 (3): 217–229.
【2】Romero, A. (2001): The Biology of Hypogean Fishes. Developments in Environmental Biology of Fishes. ISBN 978-1-4020-0076-8
【3】Anderson, Luís Alves; Oliveira, Claudio; Nirchio, Mauro; Granado, Ángel and Foresti, Fausto; 'Karyotypic relationships among the tribes of Hypostominae (Siluriformes: Loricariidae) with description of XO sex chromosome system in a Neotropical fish species'; Genetica, vol. 128 (2006); pp. 1-9