分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers)
鱂形目 (Rivulines, killifishes and live bearers) >
Goodeidae (Splitfins)
谷鱂科 (Splitfins) > Goodeinae
Etymology: Allotoca: Greek, allos = other + Greek, tokos = birth (Ref. 45335). The transliterated Latin terminal part of the compound name ('tocus') was changed to 'toca', thus the genus is feminine (Ref. 35111); maculata: Name from the Latin word 'maculata' meaning spot, referring to the black basicaudal spot.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: 7.0 - 7.7; dH range: 5 - 20. 熱帶; 22°C - 26°C (Ref. 12468); 23°N - 22°N
North America: Jalisco, Mexico.
北美洲: 墨西哥加里斯科州。 可能滅絕在荒野中.(參考文獻 4537)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 26130); 7.5 cm (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 13 - 14; 臀鰭軟條: 11 - 13. Diagnosis: A small species with dorsal and anal fins set far back on body, but less posterior than in Allotoca dugesi. Predorsal length 64-68%. Dorsal origin slightly ahead of anal origin. Dorsal rays usually 13 or 14. Anal rays usually 11-13. Lateral scales 28-32. Mandibular pores absent. Adult fins dimorphic, longer in males which have dorsal and anal fins rounded and elevated. Deep body and compressed. The coloration is distinctive, fins mostly clear, one or more irregular dark spots on caudal peduncle, females with 3-6 lateral blotches of iridescent blue, males with a lateral series of fine dark spots. Diploid chromosome number 48, no metacentrics (Ref. 35111).
Found in very clear water with muddy or boggy bottoms (Ref. 26130). Species used in research (Ref. 4537).
發現於了最清澈的水域有泥濘的或似沼澤的底部.(參考文獻 26130) 種被用於研究了。 (參考文獻 4537)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: 墨西哥加里斯科州。 可能滅絕在荒野中.(參考文獻 4537)
Wischnath, L., 1993. Atlas of livebearers of the world. T.F.H. Publications, Inc., United States of America. 336 p. (Ref. 26130)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
極危 (CR) (B1ab(i,ii,iii,iv)c(ii)+2ab(i,ii,iii,iv)c(ii)); Date assessed: 18 April 2018
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.2 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
