分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Actinopteri > Blenniiformes
(Blennies) 鱸形目 (Blennies)
(Triplefin blennies) 三鰭鳚科 (Triplefin blennies)
Etymology: Helcogramma: Greek, helkos, -eos, -ous = ulcer, sore + Greek, gramma = letter, mark (Ref. 45335); serendip: Named after Sri Lanka’s old Arabic name ‘Sarandib’, or ‘Serendip’ in English. Also named after serendipitous discovery of several new species. The epithet is used as a noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
; 海洋 底中水層性; 深度上下限 - m (Ref. ), usually - m (Ref. ).
Eastern Indian Ocean: Sri Lanka.
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 2.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 75031)
型態特徵 | 形態測量圖
背棘 (總數): 16; 背的軟條 (總數): 10; 臀棘 1; 臀鰭軟條: 18 - 19; 脊椎骨: 35. Diagnosis: A small (< 2.5 cm SL) species of the genus. Dorsal fin III + XIII+ 10, 1st fin low; anal fin I, 19; pectoral rays 16 (2+7+7); pelvic fin I, 2, spine short and hidden, segmented rays simple, partially united by membrane. Vertebrae 10+25. LL total lateral scales 37-38; tubed 20-22 (21), ends below junction of 2nd and 3rd dorsal fin; nape and anterior anal-fin bases scaleless, caudal-fin base with 2 rows of scales. Mandibular pores 4+1+4. Orbital cirrus pointed, small. Posterior margin of orbit and edges of occipital sensory canals with minute serrations. Head length 3.6 in SL; eye 2.8, maxilla 2.4 in HL. Live color not known. Male head with stripe below eyes, from upper lip to opercle and pectoral-fin base. Females with H-bars on body (Ref. 75031).
Collected from rocky bottoms (Ref. 75031). Female members of the Tripterygiidae have eggs that are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Holleman, W., 2007. Fishes of the genus Helcogramma (Blennioidei: Tripterygiidae) in the Western Indian Ocean, including Sri Lanka, with description of four new species. Smith. Bull. 7:51-81. (Ref. 75031)
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00248 - 0.01216), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
營養階層 (Ref. 69278
): 3.0 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref. 120179
): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153
): Low vulnerability (10 of 100) .