Robert's spiny rat

Robert's spiny-rat (Proechimys roberti) or Para spiny rat, is a spiny rat species ^[3] found in Brazil. This species is named after the collector Alphonso Robert, who collected the holotype of this species in 1901. ^[4]

Robert's Spiny-rat
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Echimyidae
Subfamily:	Echimyinae
Tribe:	Myocastorini
Genus:	Proechimys
Species:	P. roberti
Binomial name
Proechimys roberti Thomas, 1901
Synonyms
P. oris Thomas, 1904[2]

Morphological, karyological, and mitochondrial DNA (cytochrome b) data indicate that Proechimys oris is likely a junior synonym of P. roberti.^[2]

Phylogeny

Morphological characters and mitochondrial cytochrome b DNA sequences showed that P. roberti belongs to the so-called guyannensis group of Proechimys species, and shares closer phylogenetic affinities with the other member of this clade: P. guyannensis.^[5][6][7]

Species-level cladogram of the genus Proechimys.

Myocastorini     Hoplomys     Hoplomys gymnurus   Proechimys     Proechimys canicollis (Colombian spiny rat)   Proechimys decumanus (Pacific spiny rat)   Proechimys echinothrix (Stiff-spine spiny rat)   Proechimys simonsi (Simon's spiny rat)   group gardneri     Proechimys kulinae (Kulina spiny rat)   Proechimys gardneri (Gardner's spiny rat)   Proechimys pattoni (Patton's spiny rat)   group semispinosus     Proechimys gorgonae   Proechimys oconnelli (O'Connell's spiny rat)   Proechimys semispinosus (Tome's spiny rat)   group guyannensis     Proechimys boimensis   Proechimys guyannensis (Guyenne spiny rat)   Proechimys oris   Proechimys roberti (Roberto's spiny rat)   group longicaudatus     Proechimys cuvieri (Cuvier's spiny rat)   Proechimys brevicauda (Short-tailed spiny rat)   Proechimys gularis   Proechimys longicaudatus (Long-tailed spiny rat)   group goeldii     Proechimys amphichoricus   Proechimys goeldii (Goeldi's spiny rat)   Proechimys hyleae   Proechimys quadruplicatus (Napo spiny rat)   Proechimys steerei (Steere's spiny rat)   group trinitatus     Proechimys chrysaeolus (Boyacá spiny rat)   Proechimys guairae (Guaira spiny rat)   Proechimys hoplomyoides (Guyanan spiny rat)   Proechimys magdalenae (Magdalena spiny rat)   Proechimys mincae (Minca spiny rat)   Proechimys poliopus (Gray-footed spiny rat)   Proechimys trinitatus (Trinidad spiny rat)   Proechimys urichi (Sucre spiny rat)

The cladogram has been reconstructed from morphological characters and mitochondrial DNA (cytochrome b) sequences.[5][6][8][7]