Tylomys tumbalensis, Merriam, 1901

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Cricetidae, Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona: Lynx Edicions, pp. 204-535 : 535

761.

Tumbala Climbing Rat

Tylomys tumbalensis

French: Tylomys de Tumbala / German: Tumbala-Kletterratte / Spanish: Rata trepadora de Tumbala

Taxonomy. T ylomys tumbalensis Merriam, 1901 , “Tumbala, Chiapas, Mexico.”

Tylomys tumbalensis is known from less than ten specimens collected at the type locality. It has been considered a subspecies of 1 nudicaudus . Monotypic.

Distribution. Tumbala, N Chiapas, SE Mexico.

Descriptive notes. Head-body 214 mm, tail 234 mm; weight 250 g. Back of the Tumbala Climbing Rat is dark gray. Chin, chest, and part of inguinal region are white, and toes are dark brown. Tail is naked and scaly; front one-half is blackish, and tip is white. Compared to that of sympatric Peters’s Climbing Rat (71. nudicaudus ), skull, face, and nasals are thinner; bullae are slightly long; upper incisors are thin; and molars are long (9-5 mm) and heavy.

Habitat. Pine ( Pinus , Pinaceae ) and oak ( Quercus , Fagaceae ) forest at type locality.

Food and Feeding. No information.

Breeding. No information.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Critically Endangered on The IUCN Red List. Only one locality is known for the Tumbala Climbing Rat, less than 100 km?®. Overall population is likely in danger of decreasing due to habitat alterations from urbanization and farming.

Bibliography. Alvarez-Castafeda et al. (2015), Espinoza (2002, 2014c), Goodwin (1955b), Musser & Carleton (2005), Ramirez-Pulido, Gonzalez-Ruiz et al. (2014), Reid (2009), Vazquez (2016), Wilson & Cole (2000).

Figures

725. Haggard’s Leaf-eared Mouse (Phyllotis haggardi), 726. Andean Leaf-eared Mouse (Phyllotis andium), 727. Peruvian Leaf-eared Mouse (Phyllotis gerbillus), 728. Friendly Leaf-eared Mouse (Phyllotis amicus), 729. Narrow-nasal Leaf-eared Mouse (Phyllotis stenops), 730. Pearson’s Leaf-eared Mouse (Phyllotis pearson), 731. Western Leaf-eared Mouse (Phyllotis occidens), 732. Ancash Leaf-eared Mouse (Phyllotis definitus), 733. Lima Leaf-eared Mouse (Phyllotis limatus), 734. Master Leaf-eared Mouse (Phyllotis magister), 735. Yellow-rumped Leaf-eared Mouse (Phyllotis xanthopygus), 736. Osgood’s Leaf-eared Mouse (Phyllotis osgoodi), 737. Bunch Grass Leaf-eared Mouse (Phyllotis osilae), 738. Capricorn Leaf-eared Mouse (Phyllotis caprinus), 739. Tucuman Leaf-eared Mouse (Phyllotis tucumanus), 740. Walnut Leaf-eared Mouse (Phyllotis nogalaris), 741. Darwin’s Leaf-eared Mouse (Phyllotis darwinii), 742. Los Alisos Leaf-eared Mouse (Phyllotis alisosiensis), 743. Anita’s Leaf-eared Mouse (Phyllotis anitae), 744. Bonarian Leaf-eared Mouse (Phyllotis bonariensis), 745. Wolffsohn’s Leaf-eared Mouse 1 (apecomys wolffsohni), 746. Tapecua Leaf-eared Mouse (Tapecomys primus), 747. Southern Big-eared Mouse (Loxodontomys micropus), 748. Delicate Salt Flat Mouse (Salinomys delicatus), 749. Pearson’s Chaco Mouse (Andalgalomys pearsoni), 750. Olrog’s Chaco Mouse (Andalgalomys olrogi), 751. Garlepp’s Mouse (Galenomys garleppii), 752. Painted Big-eared Mouse (Auliscomys pictus), 753. Bolivian Big-eared Mouse (Auliscomys boliviensis), 754. Andean Big-eared Mouse (Auliscomys sublimis), 755. Sumichrast’s Vesper Rat (Nyctomys sumichrasti), 756. Yucatan Vesper Rat (Otonyctomys hatti), 757. Big-eared Climbing Rat (Ototylomys phyllotis), 758. La Pera Climbing Rat (Ototylomys chiapensis), 759. Peters’s Climbing Rat (Tylomys nudicaudus), 760. Chiapan Climbing Rat (Tylomys bullaris), 761. Tumbala Climbing Rat 1 (ylomys tumbalensis), 762. Watson’s Climbing Rat (Tylomys watsoni), 763. Fulvous-bellied Climbing Rat (Tylomys fulviventer), 764. Panama Climbing Rat (Tylomys panamensis), 765. Mira Climbing Rat (Tylomys mirae)

Distribution. Tumbala, N Chiapas, SE Mexico.