shark shark species requiem shark family known type specimen caught eastern handful additional specimens caught kuwait reaching length species greenish colored body short snout black tipped fins distinguished similar species teeth narrow erect smooth edged little known shark natural history likely inhabits shallow waters feeds small bony fishes presumably viviparous like members family assessed species vulnerable sole type specimen known specimens discovered conservation status species remains heavy fishing habitat degradation range taxonomy phylogeny known specimen shark long immature male caught deposited vienna location recorded near likely refers town eastern shark examined described new species new_zealand technical report gave specific epithet greek meaning smooth meaning tooth species known single specimen fishery surveys kuwait uncovered specimens based morphology tentatively grouped shark spinner shark shark graceful shark shark molecular phylogenetic techniques mitochondrial dna sequences colleagues reported species closely related graceful shark shark australian shark description shark resembles reef shark robust build short blunt snout large nostrils preceded developed triangular flaps skin small circular eyes equipped membranes mouth forms wide arch short furrows corners upper lower tooth rows small teeth center jaw teeth distinctive shape having narrow upright sharks juvenile spinner sharks members similar teeth pairs gill slits long fairly long pointed pectoral fins slightly shaped originate fourth fifth gill slits dorsal fin medium sized triangular pointed apex originates rear pectoral fin bases second dorsal fin small positioned opposite anal fin ridge dorsal fins pelvic fins triangular larger anal fin deep notch trailing margin crescent shaped notch present caudal upper caudal fin origin caudal fin developed lower lobe longer upper lobe ventral notch near tip dermal denticles slightly overlapping bear prominent horizontal ridges leading marginal teeth species greenish yellow greenish gray scattering tiny dark dots underside white extends pale band flanks fins sharply defined black tips broad dark stripe running second dorsal fin base tip upper caudal fin lobe largest recorded specimen long distribution habitat shark recorded eastern kuwait apart locations differ markedly near deep narrow continental shelf permanent near kuwait entirely shallower receives abundant freshwater river system kuwait specimens obtained fish markets given practices shark supposed inhabit shallow coastal waters waters encompass range habitats coral reefs habitat requirements shark remain largely unknown biology ecology considering resemblance reef shark shark play equivalent shallow water ecological role range known feed marine diet probably includes small bony fishes species presumably viviparous like species developing young sustained term connection mother judging available specimens males reach sexual maturity point long human interactions prior finding additional specimens kuwait assessed shark vulnerable based presumed small range population despite discovery second kuwait species likely vulnerable assessment higher waters subject heavy fishing pressure habitat degradation fisheries kuwait known shark intensive shark fisheries operate status uncertain specimens recorded original century ago
Smoothtooth blacktip shark