Maxomys surifer

Status and Conservation. Classified as Least Concern on The IUCN Red List. The Indomalayan Spiny Rat has a very extensive distribution — widest for the genus — and occurs in many protected areas. It faces no major threats and is considered common throughout its distribution.

Sumber: Muridae

Descriptive notes. Head — body 155 - 226 mm, tail 146 - 227 mm, ear 20 - 28 mm, hindfoot 32 - 47 mm; weight 90 - 285 g. The Indomalayan Spiny Rat is a large species of Maxomys. Sundaic populations are generally smaller than mainland South-east Asian populations. Pelage is short and very spiny, with dark stiff spines dorsally, soft white spines ventrally, and black guard hairs. Dorsum varies from orangish to reddish brown, being lighter on sides and distinctly darker along back. Dorsal pelage also extends to around ankles unlike on Rajah Sundaic Spiny Rat (M. rajah). Venteris white, usually with reddish brown or orangishbrown collar around lower neck that ends in line leading up neck, although this can be partially or fully visible. Juveniles are very dark blackish brown, fading through gray to white ventrally, and they are not identifiable to the species level within the genus. Feet are white, long, and narrow. Ears are long and brown; vibrissae are long and dark. Tail is 95 - 100 % of head-body length and distinctly bicolored, dark brownish black dorsally and white ventrally. Skull has relatively short and wide incisive foramina. Various species of mites (Laelaps), ticks (Ixodes), fleas (Xenopsylla), pseudoscorpion (Chelifer cancroides), and blood parasites (Microfilaria, Trypanosoma, Anaplasma, and Grahamella) have been recorded from the Indomalayan Spiny Rat. There are four pairs of mammae: one pectoral, one post-axillary, and two inguinal. Chromosomal complement is 2 n = 52, FN = 66.

Sumber: Muridae