This website uses cookies to enhance your browsing experience and ensure the functionality of our site. For more detailed information about the types of cookies we use and how we protect your privacy, please visit our Privacy Information page.
×
Cookie Settings
This website uses different types of cookies to enhance your experience. Please select your preferences below:
Teleostei > Eupercaria/misc (Various families in series Eupercaria) 鱸形目 (Various families in series Eupercaria) > Labridae (Wrasses) 隆頭魚科 (Wrasses) > Xyrichtyinae
Etymology: Ammolabrus:Greek, ammos = sand + see Labrus; dicrus:From the Greek dikros, forked, in reference to the forked caudal fin. More on authors: Randall & Carlson.
背棘 (总数) : 9; 背的软条 (总数) : 12; 臀棘: 3; 臀鳍软条: 12; 脊椎骨: 25. Flexible anal fin spines; 19 or 20 + 5 or 6 pored lateral line scales with single horizontal tubule, ending in a pore; scales thin and rhomboidal, those of thorax and anterior abdomen smaller than those of side of body; head naked except for 2 small scales dorsally on opercle and diagonal row of 5 partially embedded scales behind eye; no median predorsal scales; 3 small median prepelvic scales; anterior third of prepelvic region naked; branchiostegal rays 6; upper jaw strongly protrusible, median process of premaxilla extending to above anterior pupil edge; body moderately elongate, the depth 4.2-4.45 in SL; dorsal part of head from front of snout to origin of dorsal fin with a fleshy median ridge, the interorbital space high and triangular when viewed from the front; interorbital space narrowest anteriorly; caudal fin small, 1.45-1.65 in head length; pelvic fins small, 2.2-3.05 in head length (Ref. 26794). Body shape (shape guide): elongated. 柔韧有弹性的臀鳍棘; 19 或 20+5 或 6条有细孔的侧线鳞片有被末端形成一个孔的单一水平的细管; 鳞片细而长菱形的, 比身体侧边的小的胸的与前面的腹部; 头部裸露的除了 2个小鳞片在鳃盖与斜线列背面上 5 部份地深入的鳞片在后眼; 没有中央的前背鳞片; 3个小的中央腹鳍前的鳞片; 腹鳍前区域的前三分之一裸露的; 鳃条骨 6; 上颌强烈能伸展, 延伸至前面的瞳孔边缘上方的前颌骨的中动脉突起; 身体中等细长的, 深度 4.2-4.45 分之一标准体长; 从吻部前面到背鳍起点的头部的背部部份具有一个肉质的中央脊，眼间隔高而三角形的何时从前面看; 眼间隔狭窄的前面地; 尾鳍小的,1.45-1.65 分之一头长; 腹鳍小的,2.2-3.05 分之一头长.(参考文献 26794)
Adults are found over open sand bottom, in small, swift-swimming schools (Ref. 26794). Feed on zooplankton above the substratum (Ref. 26794, 58466). Oviparous, distinct pairing during breeding (Ref. 205).
Parenti, P. and J.E. Randall, 2000. An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (68):1-97. (Ref. 35918)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
系统发育多样性指数 (参考文献 82804): PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00272 - 0.01607), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (参考文献 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回复力 (参考文献 120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref. 59153): Low vulnerability (10 of 100). 🛈
