"The smalltail shark (Carcharhinus porosus) is a species of requiem shark, and part of the family Carcharhinidae. It is found in the western Atlantic Ocean, from the northern Gulf of Mexico to southern Brazil. It inhabits shallow waters close to shore, particularly over muddy bottoms around estuaries. It tends to swim low in the water column and forms large aggregations segregated by sex."@en . . "Carcharias porosus (Ranzani, 1839)" . "DD" . . . . . . . . "Smalltail shark"@en . . "IUCN3.1" . . . "Carcharias henlei (M\u00FCller & Henle, 1839)" .