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HOME --> CLASS MAMMALIA
--> ORDER RODENTIA
--> SUBORDER MYOMORPHA
--> SUPERFAMILY Muroidea
--> FAMILY Cricetidae
--> SUBFAMILY Sigmodontinae
--> GENUS Holochilus
SPECIES Holochilus chacarius
| Author: | Thomas, 1906. | | Citation: | Ann. Mag. Nat. Hist., ser. 7, 18: 446. | | Common Name: | Chacoan Marsh Rat | | Type Locality: | Paraguay, Concepción Dept., E Chaco, one "league" NW Concepción, 500 ft (152 m). | | Distribution: | Paraguay and NE Argentina. | | Status: | IUCN – Lower Risk (lc). | | Comments: | Considered distinct by Massoia (1980a), who treated balnearum as a synonym; Reig (1986) mentioned balnearum as another good species. Highly variable in diploid (2n = 48-56) and fundamental numbers (Nachman, 1992b; Nachman and Myers, 1989; Vidal et al., 1976). Nachman (1992a) recognized Paraguayan samples (as H. brasiliensis chacarius) as karyotypically distinguishable and specifically distinct from Argentinian populations (as H. vulpinus). |
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