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Gobiiformes (Gobies) >
Microdesmidae (Wormfishes) > Ptereleotrinae
Etymology: Nemateleotris: Name from the combination of the Greek 'nemat' meaning thread, and the eleotrid genus Eleotris; helfrichi: Named for Dr. Philip Helfrich, Associate Director of the Hawaii Institute of Marine Biology of the University of Hawaii and Director of the Enewetak Marine Biological Laboratory.
Eponymy: Dr Philip Helfrich (d: 1927) is a marine biologist. [...] (Ref. 128868), visit book page.
More on authors: Randall & Allen.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas associadas(os) a recifes; intervalo de profundidade 0 - 90 m (Ref. 33482), usually 40 - ? m (Ref. 9710). Tropical; 16°N - 28°S
Southeastern Pacific: Fr. Polynesia.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 6.0 cm TL macho/indeterminado; (Ref. 9710)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 7; Raios dorsais moles (total) : 29 - 30; Espinhos anais: 1; Raios anais moles: 25 - 27. This species is distinguished by the following characters: D VI, I,30 (I,29-30); A I,26 (I,25-27); pectoral-fin rays 20 (20-21); pelvic-fin rays I,5; segmented caudal-fin rays 17; upper procurrent caudal-fin rays 9 (9-14); lower procurrent caudal-fin rays 12 (11-12); total caudal-fin rays 37-43; gill rakers 6 (5-7) + 17 (17-18) = 23 (22-24). Colouration: elevated part of first dorsal fin blue on anterior edge; median fins are pale yellowish green, caudal fin no markings, outermost edge of second dorsal and anal fin tipped with a yellow or orange spot, one in each interradial membrane space, the spots sometimes coalescing; when alive the body is lavender to lilac; pelvic fins black-tipped; dorsal edge of iris with a black mark at 1 o’clock position, sometimes continuing until interorbital space as a short streak; maxilla black (when alive and preserved); snout bright pink in life (Ref. 128599).
Occurs in relatively deep water. Found over small patches of sand, rubble, or hard open bottoms of steep seaward reefs. Rarely found in less than 40 m and frequently occurs in pairs. Monogamous (Ref. 52884). Feeds on zooplanktons (Ref. 89972). Minimum depth reported taken from Ref. 128797.
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Monogamous mating is observed as both obligate and social (Ref. 52884).
Tea, Y.-K. and H.K. Larson, 2023. Synopsis of the ptereleotrine goby genus Nemateleotris, with description of a new species from the western and central Pacific Ocean (Teleostei: Gobiidae). Raffles Bulletin of Zoology 71:248-266. (Ref. 128599)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais; Aquário: Espécies comerciais
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 25.7 - 29, mean 27.8 °C (based on 13 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.4 ±0.45 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Nemateleotris helfrichi (Helfrichs\](/images/thumbnails/jpg/tn_Nehel_u9.jpg "Image of Nemateleotris helfrichi (Helfrichs\")
