Selayur

Selayur, turut disebut layur, ialah ikan pemagsa dengan sekitar 45 spesies dalam keluarga Trichiuridae bagi order Scombriformes yang dijumpai di laut merentasi dunia. Ikan keluarga ini panjang, langsing, dan selalunya berwarna perak atau biru keluli. Ia ketiadaan atau mempunyai sirip ekor dan pinggul yang susut, memberikannya perawakan bak belut, dan gigi bak taring.

Beberapa spesies dikenali sebagai timah atau timah-timah; yang lain pula dipanggil timah kabut di mana ia muncul pada lewat musim luruh dan awal musim sejuk, sekitar waktu ibun pertama.

Pengelasan
Senarai spesies ini menurut FishBase:

 Subkeluarga Aphanopidinae Gill, 1863
 Genus Aphanopus
 Aphanopus arigato Parin, 1994
 Aphanopus beckeri Parin, 1994
 Aphanopus capricornis Parin, 1994
 Aphanopus carbo Lowe, 1839 (Black scabbardfish)
 Aphanopus intermedius Parin, 1983 (Intermediate scabbardfish)
 Aphanopus microphthalmus Norman, 1939 (Smalleye scabbardfish)
 Aphanopus mikhailini Parin, 1983 (Mikhailin's scabbardfish)
 Genus Benthodesmus Goode & Bean, 1882
 Benthodesmus elongatus, Clarke, 1879 (Elongate frostfish)
 Benthodesmus macrophthalmus, Parin & Becker, 1970 (Bigeye frostfish)
 Benthodesmus neglectus,  Parin, 1976 (Neglected frostfish)
 Benthodesmus oligoradiatus, Parin & Becker, 1970 (Sparse-rayed frostfish)
 Benthodesmus pacificus, Parin & Becker, 1970 (North Pacific frostfish)
 Benthodesmus papua, Parin, 1978 (Papuan frostfish)
 Benthodesmus simonyi, Steindachner, 1891 (Simony's frostfish)
 Benthodesmus suluensis, Parin, 1976 (timah kabut sulu)
 Benthodesmus tenuis, Günther, 1877 (timah kabut lampai)
 Benthodesmus tuckeri, Parin & Becker, 1970 (Tucker's frostfish)
 Benthodesmus vityazi, Parin & Becker, 1970 (timah kabut lang)
 Subkeluarga Lepidopodinae, Gill, 1863 
 Genus Assurger
 Assurger anzac Alexander, 1917 (Razorback scabbardfish)
 Genus Eupleurogrammus
 Eupleurogrammus glossodon, (Bleeker, 1860) (timah layur gigi)
 Eupleurogrammus muticus, (Gray, 1831) (timah layur kepala kecil)
 Genus Evoxymetopon
 Evoxymetopon macrophthalmus Chakraborty, Yoshino & Iwatsuki, 2006
 Evoxymetopon moricheni Fricke, Golani & Appelbaum-Golani, 2014Fricke, R., Golani, D. & Appelbaum-Golani, B. (2014): Evoxymetopon moricheni, a new cutlassfish from the northern Red Sea (Teleostei: Trichiuridae). Ichthyological Research 61 (3): 293-297.
 Evoxymetopon poeyi Günther, 1887 (Poey's scabbardfish)
 Evoxymetopon taeniatus Gill, 1863 (Channel scabbardfish)
 Genus Lepidopus
 Lepidopus altifrons, Parin & Collette, 1993 (Crested scabbardfish)
 Lepidopus calcar, Parin & Mikhailin, 1982 (Hawaiian ridge scabbardfish)
 Lepidopus caudatus, (Euphrasen, 1788) (Silver scabbardfish)
 Lepidopus dubius, Parin & Mikhailin, 1981 (Doubtful scabbardfish)
 Lepidopus fitchi , Rosenblatt & Wilson, 1987 (Fitch's scabbardfish)
 Lepidopus manis, Rosenblatt & Wilson, 1987 (Ghost scabbardfish)
Subkeluarga Trichiurinae Rafinesque, 1810
 Genus Demissolinea
 Demissolinea novaeguineensis, Burhanuddin & Iwatsuki, 2003 (New Guinean hairtail)
 Genus Lepturacanthus
 Lepturacanthus pantului, (Gupta, 1966) (Coromandel hairtail)
 Lepturacanthus roelandti  (Bleeker, 1860) 
 Lepturacanthus savala, (Cuvier, 1829) (timah pucuk)
 Genus Tentoriceps
 Tentoriceps cristatus, (Klunzinger, 1884) (timah langgai)
 Genus Trichiurus
 Trichiurus auriga, Klunzinger, 1884 (timah mutiara)
 Trichiurus australis Chakraborty, Burhanuddin & Iwatsuki, 2005
 Trichiurus brevis, Wang & You, 1992 (Chinese short-tailed hairtail)
 Trichiurus gangeticus, Gupta, 1966 (Ganges hairtail)
 Trichiurus lepturus, Linnaeus, 1758 (timah selayur)
 Trichiurus margarites, Li, 1992
 Trichiurus nanhaiensis, Wang & Xu, 1992
 Trichiurus nickolensis, Burhanuddin & Iwatsuki, 2003 (Australian short-tailed hairtail)
 Trichiurus russelli, Dutt & Thankam, 1966 (Short-tailed hairtail)

Garis masa genus

Rujukan



Pautan luar
 Listing of Trichiuridae in English and Japanese 2003-10-27