Chodsigoa sodalis, Thomas, 1913

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 : 453

167.

Lesser Taiwanese Brown-toothed Shrew

Chodsigoa sodalis

French: Musaraigne sociable / German: Kleine Taiwan-Braunzahnspitzmaus / Spanish: Musarana de dientes marrones de Taiwan menor

Other common names: Koshun Shrew, Lesser Taiwanese Shrew

Taxonomy. Chodsigoa sodalis Thomas, 1913 ,

“ Mt. Arizan , Central Formosa [= Taiwan, China]. Alt. 8000" [= 2438 m].”

Chodsigoa sodalis has been confused with Episoriculus fumidus , another endemic in Taiwan. Distinct specific status has been supported by morphological and molecular studies. Monotypic.

Distribution. Endemic to C Taiwan Mts.

Descriptive notes. Head-body 65-71 mm, tail 64-73 mm, hindfoot 13-5-15 mm.; weight 4-2-5-6 g. Condylo-incisive lengths are 18-18-4 mm, and tooth rows are 7-6-8:3 mm. The Lesser Taiwanese Brown-toothed Shrew is the sole insular representative of Chodsigoa . Dorsal pelage is dark gray, and ventral pelage is slightly paler. Tail is solid brown, and its length about equal to head-body length. Skull is robust, with dome-shaped braincase; rostrum narrows gradually. There are three upper unicuspids. P*~M?* have more concave posterior margins, which is the generic characteristic of Chodsigoa . Chromosomal complement has 2n = 44 and FN = 88.

Habitat. Montane broad-leaved forests at elevations of 600-2500 m.

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 Data Deficient on The IUCN Red List. The Lesser Taiwanese Brown-toothed Shrew is the least known shrew in Taiwan, known only from a dozen specimens.

Bibliography. Lin Liangkong & Motokawa (2014), Motokawa et al. (1997).

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. Endemic to C Taiwan Mts.