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GENUS Ctenomys

Author:Blainville, 1826.
Citation:Bull. Sci. Soc. Philom. Paris: 62.
Type Species:Ctenomys brasiliensis Blainville, 1826.
Comments:Cabrera (1961; based on Osgood, 1946) and Nowak (1999) listed two subgenera: Chacomys (C. conoveri only) and Ctenomys (all other species). The validity of subgenus Chacomys has not been supported by subsequent studies (Cook and Yates, 1994; Lessa and Cook, 1998). Thomas (1916c) placed C. leucodon in the subgenus Haptomys, an arrangement that is supported by sequence divergence (Lessa and Cook, 1998). Penis morphology appears to be useful in examining relationships among species (Balbontin et al., 1996). Sperm morphology (Feito and Gallardo, 1982; Vitullo et al., 1988; Vitullo and Cook, 1991) has been used to suggest two major divisions but the sequence analysis of D’Elía et al. (1999) does not support those lineages. A mendocinus group was designated by Massarini et al. (1991a) composed of morphologically similar species: australis, azarae, mendocinus, porteousi, and C. sp. from Chasicó. Freitas (1994) included flamarioni and rionegrensis within this group, a conclusion supported by sequence analysis (D’Elia et al., 1999). In contrast with the predominant mode of speciation within the genus Ctenomys associated with chromosomal rearrangements (Ortells, 1995; Reig and Kiblisky, 1969), members of the mendocinus group share relatively uniform karyotypes. Although a karyotype of 2n=48 is predominant, limited polymorphism has been reported in a single pair of chromosomes in populations of azarae and porteousi (Massarini et al., 1998) resulting in karyotypes with a 2n=46-48.
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Offspring:

SPECIES argentinus

SPECIES australis

SPECIES azarae

SPECIES bergi

SPECIES boliviensis

SUBSPECIES boliviensis

SUBSPECIES nattereri

SPECIES bonettoi

SPECIES brasiliensis

SPECIES budini

SUBSPECIES budini

SUBSPECIES barbarus

SPECIES colburni

SPECIES coludo

SPECIES conoveri

SPECIES coyhaiquensis

SPECIES dorbignyi

SPECIES dorsalis

SPECIES emilianus

SPECIES famosus

SPECIES flamarioni

SPECIES fochi

SPECIES fodax

SPECIES frater

SUBSPECIES frater

SUBSPECIES mordosus

SPECIES fulvus

SUBSPECIES fulvus

SUBSPECIES robustus

SPECIES goodfellowi

SPECIES haigi

SUBSPECIES haigi

SUBSPECIES lentulus

SPECIES johannis

SPECIES juris

SPECIES knighti

SPECIES lami

SPECIES latro

SPECIES leucodon

SPECIES lewisi

SPECIES magellanicus

SUBSPECIES magellanicus

SUBSPECIES dicki

SUBSPECIES fueginus

SUBSPECIES osgoodi

SPECIES maulinus

SUBSPECIES maulinus

SUBSPECIES brunneus

SPECIES mendocinus

SPECIES minutus

SUBSPECIES minutus

SUBSPECIES bicolor

SPECIES occultus

SPECIES opimus

SUBSPECIES opimus

SUBSPECIES luteolus

SUBSPECIES nigriceps

SPECIES osvaldoreigi

SPECIES pearsoni

SPECIES perrensi

SPECIES peruanus

SPECIES pilarensis

SPECIES pontifex

SPECIES porteousi

SPECIES pundti

SPECIES rionegrensis

SPECIES roigi

SPECIES saltarius

SPECIES scagliai

SPECIES sericeus

SPECIES sociabilis

SPECIES steinbachi

SPECIES sylvanus

SUBSPECIES sylvanus

SUBSPECIES utibilis

SPECIES talarum

SUBSPECIES talarum

SUBSPECIES antonii

SUBSPECIES occidentalis

SUBSPECIES recessus

SPECIES torquatus

SPECIES tuconax

SPECIES tucumanus

SPECIES tulduco

SPECIES validus

SPECIES viperinus

SPECIES yolandae

Synonyms:

    Chacomys Osgood, 1946
    Haptomys Thomas, 1916

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