FB-704 http://www.fishbase.org/summary/SpeciesSummary.php?id=704 Animalia Chordata Elasmobranchii Squaliformes Somniosidae Somniosus Somniosus rostratus (Risso, 1827) Peshkagen قِرش راقِد صغير Žralok ospalý dlouhonosý Lille havkal Kleiner Schlafhai Lemargo Little Sleeper Shark Little sleeper shark Väike polaarhai Väike unihai Laimargue de la Méditerranée Laimargue de Méditerranée Lemargo Köpek balığı Köpekbalığı Tiburón boreal Tollo boreal Lemargo Lemargos Tauró boreal Λαίμαργος 小鰭睡鯊 小鳍睡鲨 長體睡鯊 长体睡鲨 Scymnus rostratus Risso, 1827 Somniosus bauchotae Quéro, 1976 1992-06-15 2024-06-20 Coppola, S.R., W. Fischer, L. Garibaldi, N. Scialabba and K.E. Carpenter0 SPECIESDAB: Global species database for fishery purposes. User's manual. FAO Computerized Information Series (Fisheries). No. 9. Rome, FAO. 103 p. (Ref. 171) Breder, C.M. and D.E. Rosen0 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205) Compagno, L.J.V.0 FAO Species Catalogue. Vol. 4. 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Joung0 <i>Somniosus (Rhinoscymnus) cheni</i> sp. nov. A new species of sleeker shark (Squaliformes: Somniosidae) from Eastern Taiwan, with aspects of embryo biology. Zool. Stud. 59:48. (Ref. 123759) Insacco, G., B. Zava, F. Spadola, D. Scannella, A. Deidun, F. Cigala-Fulgosi, M. Valastro, A. Di Natale, C. Piccinetti and M. Corsini-Foka0 Additional records of the little sleeper shark, <i>Somniosus rostratus</i> (Elasmobranchii: Squaliformes: Somniosidae), in Mediterranean Sea. Acta Ichthyologica et Piscatoria 54:139-150. (Ref. 131093) Damalas. D., P. Peristeraki, C. Gubili, M. Lteif, M. Otero, I. Thasitis, M. Ali, S. Jemaa, Ch. Mytilineou, S. Kavadas and M.M.S. Farrag0 Vulnerable megafauna. Deep-sea cartilaginous fish (Chondrichthyes: sharks, rays, skates and chimaeras). pp. 135-237. In Otero, M.; Mytilineou, C. (eds) Deep-sea Atlas of the Eastern Mediterranean Sea. IUCN, Gland, Switzerland, IUCN Centre for Mediterranean Cooperation, Málaga, Spain. (Ref. 131094) FB-pic-704-3750 http://purl.org/dc/dcmitype/StillImage image/gif FAO 1995-05-16 1998-12-14 http://creativecommons.org/licenses/by-nc/3.0/ This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 Unported License. Image can be freely copied and altered but may be used only for non-commercial purposes. Original author and source must be properly acknowledged WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=704 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size http://www.fishbase.us/images/species/Soros_u0.gif http://www.fishbase.us/images/thumbnails/gif/tn_Soros_u0.gif FB-GeneralDescr-704 http://purl.org/dc/dcmitype/Text text/html Kent E. Carpenter 1992-06-15 00:00:00 2024-06-20 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=704 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats A rare species (Ref. 26346) found on outer continental shelves and upper slopes (Ref. 247). Probably feeds on deepwater bottom fishes and invertebrates (Ref. 247). Ovoviviparous (Ref. 205), length at birth 21-28 cm TL (Ref. 26346). Utilized as fishmeal and possibly as food fish (Ref. 247). Yano, K., J.D. Stevens and L.J.V. Compagno 2004 A review of the systematics of the sleeper shark genus <i>Somniosus</i> with redescriptions of <i>Somniosus</i> (<i>Somniosus</i>) <i>antarcticus</i> and <i>Somniosus</i> (<i>Rhinoscymnus</i>) <i>longus</i> (Squaliformes: Somniosidae). Ichthyol. Res. 51:360-373. (Ref. 50224) FB-DiagnosticDescr-704 http://purl.org/dc/dcmitype/Text text/html Cristina V. Garilao 1998-05-27 00:00:00 2017-11-15 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=704 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Diagnosis: Somniosus rostratus is distinguished from S. longus in having overall length of second dorsal shorter than first dorsal fin 76-88% (vs. almost equal 91-100%); horizontal diameter of eye less than 37% (mean 33%) of length from snout tip to eye (vs. >37, mean 46%); number of tooth rows in upper jaw 53 (vs. 56-57); and spiral valve counts 23 (vs. 26-27) (Ref. 50224).Description: Grey or brown in color (Ref. 26346). Short, rounded snout; equal-sized dorsal fins, first dorsal fin on back closer to pectorals than pelvic fins; long ventral caudal lobe; short keels on base of caudal fin (Ref. 247). Yano, K., J.D. Stevens and L.J.V. Compagno 2004 A review of the systematics of the sleeper shark genus <i>Somniosus</i> with redescriptions of <i>Somniosus</i> (<i>Somniosus</i>) <i>antarcticus</i> and <i>Somniosus</i> (<i>Rhinoscymnus</i>) <i>longus</i> (Squaliformes: Somniosidae). Ichthyol. Res. 51:360-373. (Ref. 50224) FB-Morphology-704 http://purl.org/dc/dcmitype/Text text/html Cristina V. Garilao 1998-05-27 00:00:00 2017-11-15 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=704 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution Dorsal spines (total): 0; Analspines: 0; Analsoft rays: 0 Yano, K., J.D. Stevens and L.J.V. Compagno 2004 A review of the systematics of the sleeper shark genus <i>Somniosus</i> with redescriptions of <i>Somniosus</i> (<i>Somniosus</i>) <i>antarcticus</i> and <i>Somniosus</i> (<i>Rhinoscymnus</i>) <i>longus</i> (Squaliformes: Somniosidae). Ichthyol. Res. 51:360-373. (Ref. 50224) FB-Distribution-704 http://purl.org/dc/dcmitype/Text text/html Susan M. Luna 1990-10-18 00:00:00 2024-06-20 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=704 Eastern Atlantic and the Mediterranean. Yano, K., J.D. Stevens and L.J.V. Compagno 2004 A review of the systematics of the sleeper shark genus <i>Somniosus</i> with redescriptions of <i>Somniosus</i> (<i>Somniosus</i>) <i>antarcticus</i> and <i>Somniosus</i> (<i>Rhinoscymnus</i>) <i>longus</i> (Squaliformes: Somniosidae). Ichthyol. Res. 51:360-373. (Ref. 50224) FB-Uses-704 http://purl.org/dc/dcmitype/Text text/html Kent E. Carpenter 1992-06-15 00:00:00 2024-06-20 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=704 http://rs.tdwg.org/ontology/voc/SPMInfoItems#LifeCycle fisheries: minor commercial; price category: unknown; price reliability: Compagno, L.J.V. 1984 FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247) FB-LifeCycle-704 http://purl.org/dc/dcmitype/Text text/html Cristina V. Garilao 1992-06-15 00:00:00 2024-06-20 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org//Reproduction/FishReproSummary.php?ID=704&StockCode=720 http://rs.tdwg.org/ontology/voc/SPMInfoItems#TrophicStrategy Ovoviviparous (Ref. 247). Young born at 21-28 cm (Ref. 26346). Distinct pairing with embrace (Ref. 205). Compagno, L.J.V. 1984 FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247) FB-Size-704 http://purl.org/dc/dcmitype/Text text/html Kent E. Carpenter 1992-06-15 00:00:00 2024-06-20 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=704 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size 143 cm TL (male/unsexed; (Ref. 26346)) Cox, G. and M. Francis 1997 Sharks and rays of New Zealand. Canterbury Univ. Press, Univ. of Canterbury. 68 p. (Ref. 26346) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-704 http://purl.org/dc/dcmitype/Text text/html Susan M. Luna 1992-06-15 00:00:00 2024-06-20 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=704 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat bathydemersal; marine; depth range 180 - 2734 m (Ref. 106604) Weigmann, S. 2016 Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity. J. Fish Biol. 88(1):1-201. (Ref. 106604)