Classification / Names
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Synbranchiformes (Spiny eels) >
Synbranchidae (Swamp-eels)
Etymology: Monopterus: Greek, monos = one, unique + Greek, pteron = fin (Ref. 45335); rongsaw: Name from the Khasi word meaning red, referring to the blood red colour of the species when alive; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি ভাসমান; গভীরতার পরিসীমা 0 - 1 m (Ref. 118582). Subtropical
Asia: Khasi Hills in Meghalaya, India.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 17.9 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 118582)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
কশেরুকা : 161. This species is distinguished from all other synbranchids except Ophisternon infernale,
O. candidum, Monopterus boueti, M. luticolus, M. eapeni, M. roseni, and M. digressus in having tiny eyes which are covered by skin that are barely visible externally and by the lack of skin pigmentation. It differs from the seven species by having 92+69=161 vertebrae (vs. 67+72=139 in Ophisternon infernale, 51-54+109-111=162-163 in O. candidum, 108 + 79-86 = 187-194 in M. boueti, 95-102+98-110=198-208 in M. luticolus, 135+24=159 in M. eapeni, 76+71=147 in M. roseni, and 86-88+80-82=166-170 in M. digressus); differs further from M. boueti and M. luticolus in having the shoulder girdle articulating with the skull, with the posttemporal contacting the epiotic and supracleithrum (vs. cleithrum and supracleithrum posteriorly displaced and the posttemporal separated from the supracleithrum and epiotic) (Ref. 118582).
Obligate air-breathing (Ref. 126274); Collected by soil-digging searches with bladed hoes for fossorial caecilian amphibians; at a depth of ca. 40 cm in moist, rocky soil in a secondary forest, approximately 4 km trekking distance from Double Decker living roots bridge in Nongriat. It was unearthed ca. 50 m from an unnamed stream with some ground vegetation (herbs and bushes) that was cleared before digging (Ref. 118582).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Britz, R., D. Sykes, D.J. Grower and R.G. Kamei, 2018. Monopterus rongsaw, a new species of hypogean swamp eel from the Khasi Hills in Northeast India (Teleostei: Synbranchiformes: Synbranchidae). Ichthyol. Explor. Freshwat. 28(4):315-326. (Ref. 118582)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00085 (0.00039 - 0.00184), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
