taxon_rank brucepattersonius iheringi
Misiones (" Missions ") is one of the 23 provinces of Argentina , located in the northeastern corner of the country in the Mesopotamia region . It is surrounded by Paraguay to the northwest , Brazil to the north , east and south , and Corrientes Province of Argentina to the southwest . A ___MASK63___ ( genera ) is a taxonomic rank used in the biological classification of living and fossil organisms in biology . In the hierarchy of biological classification , ___MASK63___ comes above ___MASK86___ and below family . In binomial nomenclature , the ___MASK63___ name forms the first part of the binomial ___MASK86___ name for each ___MASK86___ within the ___MASK63___ . Akodontini is the second most speciose rodent ___MASK60___ of the ___MASK23___ Sigmodontinae . It includes at least 106 living ___MASK86___ in 19 genera and is distributed mainly in the southern half of South America , with only two genera extending into Guyana (" Podoxymys ") and Venezuela (" Necromys "). It also includes genera previously placed in ___MASK60___ Scapteromyini . The following genera are now generally recognized : Brucepattersonius iheringi , also known as Ihering ' s akodont , Ihering ' s hocicudo , or Ihering ' s brucie , is a South American rodent in the ___MASK63___ Brucepattersonius . It occurs in Santa Catarina and Rio Grande do Sul , southern Brazil , and nearby Misiones Province , Argentina . Mammals are any vertebrates within the ___MASK57___ Mammalia ( from Latin " mamma " " breast "), a clade of endothermic amniotes distinguished from reptiles and birds by the possession of a neocortex ( a region of the brain ), hair , three middle ear bones and mammary glands . The sister ___MASK90___ of mammals may be the extinct " Haldanodon ." The mammals represent the only living Synapsida , which together with the Sauropsida form the Amniota clade . The mammals consist of the Yinotheria including monotrema and the Theriiformes including the theria . Rodents ( from Latin " rodere ", " to gnaw ") are mammals of the ___MASK82___ Rodentia , which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws . About 40 % of all mammal ___MASK86___ are rodents ; they are found in vast numbers on all continents except Antarctica . They are the most diversified mammalian ___MASK82___ and live in a variety of terrestrial habitats , including human - made environments . A habitat is an ecological or environmental area that is inhabited by a particular ___MASK86___ of animal , plant , or other type of organism . The term typically refers to the zone in which the organism lives and where it can find food , shelter , protection and mates for reproduction . It is the natural environment in which an organism lives , or the physical environment that surrounds a ___MASK86___ population . Brazil , officially the Federative Republic of Brazil , is the largest country in both South America and Latin America . As the world ' s fifth - largest country by both area and population , it is the largest country to have Portuguese as an official language and the only one in the Americas . Bounded by the Atlantic Ocean on the east , Brazil has a coastline of . It borders all other South American countries except Ecuador and Chile and covers 47 . 3 % of the continent ' s land area . Its Amazon River basin includes a vast tropical forest , home to diverse wildlife , a ___MASK4___ of ecological systems , and extensive natural resources spanning numerous protected habitats . This unique environmental heritage makes Brazil one of 17 megadiverse countries , and is the subject of significant global interest and debate regarding deforestation and environmental protection . Latin ( Latin : ) is a classical language belonging to the Italic ___MASK44___ of the Indo - European languages . The Latin alphabet is derived from the Etruscan and Greek alphabets . Brucepattersonius is a ___MASK63___ of rodents within the tribe Akodontini from southeastern South America . Also known as brucies , the ___MASK63___ is named after Bruce Patterson , MacArthur Curator at the Department of Zoology ( Mammals ), at the Field Museum of Natural History , Chicago .