Chimarrogale phaeura, Thomas, 1898

Russell A. Mittermeier & Don E. Wilson, 2018, Soricidae, Handbook of the Mammals of the World – Volume 8 Insectivores, Sloths and Colugos, Barcelona: Lynx Edicions, pp. 332-551 : 454

171.

Bornean Water Shrew

Chimarrogale phaeura

French: Chimarrogale de Bornéo / German: Borneo-Wasserspitzmaus / Spanish: Musgano de Borneo

Other common names: Borneo Water Shrew, Sunda Water Shrew

Taxonomy. Chimarrogale phaeura Thomas, 1898 ,

“ Saiap , Mount Kina Balu ,” Sabah, Malaysia.

Chimarrogale phaeura was included in a different genus, Crossogale, but this is not sufficiently supported. Monotypic.

Distribution. Known from three mountain ranges (Mt Kinabalu, Crocker Range, and Mt Trus Madi) of Sabah State in N Borneo; it may be distributed in S Borneo.

Descriptive notes. Head-body 91-110 mm, tail 81-95 mm, hindfoot 19-26 mm. No specific data are available for body weight. Condylo-incisive lengths are 25-1-27-4 mm, and tooth rows are 11:4-11-9 mm. Tail is uniformly dark brown ventrally, back has

silver guard hairs, and sides of feet are covered with distinctive, short, stiff hairs. Medial tines (internal accessory notch) of upper incisors are well developed so that apexes (tips) are separated, and talons (posterior cusps) of these teeth are well developed. Braincase is not excessively broadened or flattened as in the Himalayan Water Shrew ( C. himalayica ). There are three upper unicuspids. Cusps of teeth are unpigmented. Dental formula for all

species of Chimarrogaleis13/2,C1/0,P1/1,M 3/3 (x2) = 28.

Habitat. Moist habitats in montane forest and near streams in tropical forests and marshland habitats.

Food and Feeding. Diet of the Bornean Water Shrew primarily contains invertebrates.

Breeding. No information.

Activity patterns. Bornean Water Shrews are semi-aquatic. They are presumably similar to the other species of Chimarrogale , swimming in rivers and streams and moving along their banks to higher ground.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Endangered on The IUCN Red List. The Bornean Water Shrew has a small known distribution of less than 5000 km*and occurs in restricted habitat, which is currently under threat from anthropogenic activities, especially logging.

Bibliography. Thomas (1898, 1921).

Figures

136. Elliot’s Short-tailed Shrew (Blarina hulophaga), 137. Northern Short-tailed Shrew (Blarina brevicaudus), 138. Southern Short-tailed Shrew (Blarina carolinensis), 139. Everglades Short-tailed Shrew (Blarina peninsulae), 140. Sherman’s Short-tailed Shrew (Blarina shermani), 141. Sichuan Short-tailed Shrew (Blarinella quadraticauda), 142. Burmese Short-tailed Shrew (Blarinella wardi), 143. Indochinese Short-tailed Shrew (Blarinella griselda), 144. Chinese Mole Shrew (Anourosorex squamaipes), 145. Taiwanese Mole Shrew (Anowrosorex yamashinai), 146. Assam Mole Shrew (Anowrosorex assamensis), 147. Giant Mole Shrew (Anourosorex schmid), 148. Desert Gray Shrew (Notiosorex crawfordi), 149. Cockrum’s Gray Shrew (Notiosorex cockrumi), 150. Large-eared Gray Shrew (Notiosorex evolis), 151. Villa’s Gray Shrew (Notiosorex villa), 152. Mexican Shrew (Megasorex gigas), 153. Taiwanese Brown-toothed (Shrew Epusoriculusfumidus), 154. Arboreal Brown-toothed Shrew (Episoriculus macrurus), 155. Bailey's Brown-toothed Shrew (Episoriculus baileyi), 156. Long-tailed Brown-toothed Shrew (Episoriculus leucops), 157. Hodgson’s Brown-toothed Shrew (Episoriculus caudatus), 158. Sichuan Brown-toothed Shrew (Episoriculus sacratus), 159. Hidden Brown-toothed Shrew (Episoriculus umbrinus), 160. Nepalese Brown-toothed Shrew (Episoriculus soluensis), 161. Himalayan Shrew (Soriculus nigrescens), 162. De Winton’s Brown-toothed Shrew (Chodsigoa hypsibia), 163. Pygmy Brown-toothed Shrew (Chodsigoa parva), 164. Smith’s Brown-toothed Shrew (Chodsigoa smithii), 165. Salenski’s Brown-toothed Shrew (Chodsigoa salenskii), 166. Dusky Brown-toothed Shrew (Chodsigoa furva), 167. Lesser Taiwanese Brown-toothed Shrew (Chodsigoa sodalis), 168. Van Sung’s Brown-toothed Shrew (Chodsigoa caovansunga), 169. Hoffmann’s Brown-toothed Shrew (Chodsigoa hoffmanni), 170. Lowe’s Brown-toothed Shrew (Chodsigoa parca), 171. Bornean Water Shrew (Chimarrogale phaeura), 172. Sumatran Water Shrew (Chimarrogale sumatrana), 173. Malayan Water Shrew (Chimarrogale hantu), 174. Chinese Water Shrew (Chimarrogale styani), 175. Himalayan Water Shrew (Chimarrogale himalayica), 176. Leander’s Water Shrew (Chimarrogale leander), 177. Japanese Water Shrew (Chimarrogale platycephala), 178. Elegant Water Shrew (Nectogale elegans), 179. Mediterranean Water Shrew (Neomys anomalus), 180. Transcaucasian Water (Shrew Neomysteres), 181. Eurasian Water Shrew (Neomys fodiens)

Distribution. Known from three mountain ranges (Mt Kinabalu, Crocker Range, and Mt Trus Madi) of Sabah State in N Borneo; it may be distributed in S Borneo.