Rattus hoffmanni

• Main Authors: Don E. Wilson, Russell A. Mittermeier, Thomas E. Lacher, Jr
• Format: Other/Unknown Material
• Language: unknown
• Published: Lynx Edicions 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Rodentia; Muridae; Rattus; Rattus hoffmanni; Rattus rattus
• Online Access: https://doi.org/10.5281/zenodo.6828231; http://treatment.plazi.org/id/1E30E27534CFFF7DE491249773DA8686

687. Hoffmann’s Sulawesi Rat Rattus hoffmanni French: Rat de Hoffmann / German: Hoffmann-Ratte / Spanish: Rata de Célebes de Hoffmann Other common names: Hoffmann's Rat, Sulawesian Rat Taxonomy. Mus hoffmanni Matschie, 1901, Minahassa region, north-eastern Sulawesi, Indonesia. Rattus hoffmanni is in the R. rattus species group and is closely related to R.molli-comulus and probably R. koopmani. A recent genetic. study found. it to be. sister to a clade consisting of the R. rattus clade and R tiomanicusin the R. rattus species group. Monotypic. Distribution. Sulawesi, except Mt Lampobatang on SW peninsula, and Malenge I, Togian Is, Indonesia. Descriptive notes. Head-body 142-211 mm, tail 145-210 mm, ear 20-25 mm, hindfoot 35-42 mm; weight 90-250 g. Hoffmann’s Sulawesi Rat is mediumto large-sized, with soft, short, and dense pelage. Dorsum is brownish black, highlighted with buff to paler brownish yellow or tawny speckled with black, always having gray underfur and inconspicuous guard hairs. Each eye has blackish ring. Venter is silver-gray, tinged with pale buff to rich dark buff with gray or dark gray underfur, respectively, sometimes with white patch or buff streak on chest. Juveniles are darker and softer than adults. Feet are brown dorsally. Ears are large, rubbery, and dark grayish brown; vibrissae are long and black. Tail is ¢.100% of head-body length, covered with short hair, and dark brown, sometimes grayish brown. Skull has long and wide rostrum. Blood flukes (Schistosoma japonicum), various nematodes (e.g. Cyclodontostomum purvisi), sucking lice (Hoplopleura sembeli), mesostigmatid, listrophoroid, anoedid mites, trobiculid chiggers (Leptotrombidium deliense, Schoengastia sulawesiensis, Ascoschoengastia indica, Eutrombicula wichmanni, Gahrliepia sp., Schoutedenichia sp.), and histiostomatid mites (Histiostoma sp.) have been recorded from Hoffmann’s Sulawesi Rat. There are four pairs of mammae: one post-axillary pair, one abdominal pair, and two inguinal pairs. Chromosomal complement is 2n = 42, FN = 61 ...