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> Anguilliformes (Eels and morays) > Muraenidae (Moray eels) > Uropterygiinae
Etymology: Uropterygius: Greek, oura = tail + Greek pterygion = little wing. Fin (Ref. 45335); cyamommatus: Name from Greek words 'kúamos' maeaning 'a bean' and 'ómma' for 'the eye', referring to its tiny bean-shaped eyes..

Environment: milieu / climate zone / depth range / distribution range Ecologia

marino; acqua dolce; salmastro associati a barriera corallina. Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Indo-West Pacific: Christmas I. and the Philippines.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 38.0 cm TL maschio/sesso non determinato; (Ref. 130726); 40.1 cm TL (female)

Short description Chiavi di identificazione | Morfologia | Morfometria

Vertebre: 141 - 149. This small-sized slender moray eel is characterized by the following characters: tail long, 56.3-61.1% of TL; eyes very small, 3.0-4.6% of HL, sometimes is reduced and subcutaneous; branchial pore, 1; maxillary teeth biserial; dentary teeth 2-3 rows anteriorly, biserial posteriorly; pre-anus vertebrae 56-62, pre-dorsal fin vertebrae 130-138, pre-anal fin vertebrae 131-139, total vertebrae 141-149. Colouration: body uniform brown; anterior nostril, gill opening, oral cavity, and head pores are whitish (Ref. 130726).

Inhabits anchialine caves. Hydrological measurements for water layers around traps in the caves revealed very low salinities (0.6-0.8 psu), which can be considered freshwaters. Although it is not known the exact water layer this species inhabits, it is highly possible that it lives in the lower layer with saline water especially it was captured in the trap from the Whip Cave with another marine eel (unidentified Chlopsidae species) (Ref. 130726).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Huang, W.-C., T.-Y. Liao and H.H. Tan, 2023. Uropterygius cyamommatus, a new moray eel (Anguilliformes: Muraenidae) from anchialine caves in Christmas Island, Australia, and Panglao Island, the Philippines. Raffles Bulletin of Zoology v. 71: 268-278. (Ref. 130726)

IUCN Red List Status (Ref. 130435)

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Uropterygius cyamommatus Huang, Liao & Tan, 2023