Reithrodontomys raviventris, Dixon, 1908

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 : 372

238.

Salt-marsh Harvest Mouse

Reithrodontomys raviventris

French: Souris-moissonneuse a ventre gris / German: Salzsumpf-Ernttemaus / Spanish: Raton espiguero de marisma

Taxonomy. Reithrodontomys raviventris Dixon, 1908 , “Redwood City, San Mateo County, Calif[ornia].,” USA.

Reithrodontomys raviventris is in subgenus Reithrodontomys . Two subspecies recognized.

Subspecies and Distribution.

R.r.raviventrisDixon,1908—SportionofSanFranciscoBay,California(USA).

R. r. halicoetes Dixon, 1909 — N portion of San Francisco Bay, California (USA).

Descriptive notes. Head—body 62-80 mm, tail 56-95 mm, hindfoot 20-22 mm; weight 8-15 g. Dorsum of the Saltmarsh Harvest Mouse has a mix of long,thick, blackish and cinnamon hairs. Tawny lateralstrip is present. Venter is white to cinnamon. Ears are blackish, with tuft of ocherous hair at bases. Tail is about as long as head-body and indistinctly bicolored.

Habitat. Salt and brackish marshes dominated by grasses and species of Salicornia (Amaranthaceae) .

Food and Feeding. The Salt-marsh Harvest Mouse reportedly eats glasswort ( Salicornia ) and tule ( Schoenoplectus , Cyperaceae ).

Breeding. Reproductive activity is thought to occur in March-November. Average litter sizes are 3-7-3-9 young.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Endangered on The IUCN Red List.

Bibliography. Dixon (1908, 1909), Fisler (1965), Hooper (1952a), Shellhammer et al. (1982).

Figures

208. Golden Mouse (Ochrotomys nuttalli), 209. Southern Pygmy Mouse (Baiomys musculus), 210. Northern Pygmy Mouse (Baiomys taylori), 211. Short-tailed Singing Mouse (Scotinomys teguina), 212. Long-tailed Singing Mouse (Scotinomys xerampelinus), 213. Yellow Deermouse (Isthmomys flavidus), 214. Mount Pirr 1 Deermouse (Isthmomys pirrensis), 215. Florida Deermouse (Podomys floridanus), 216. Volcano Deermouse (Neotomodon alstoni), 217. Short-nosed Harvest Mouse (Reithrodontomys brevirostris), 218. Darien Harvest Mouse (Reithrodontomys darienensis), 219. Slender Harvest Mouse (Reithrodontomys gracilis), 220. Mexican Harvest Mouse (Reithrodontomys mexicanus), 221. Nicaraguan Harvest Mouse (Reithrodontomys paradoxus), 222. Cozumel Harvest Mouse (Reithrodontomys spectabilis), 223. Talamancan Harvest Mouse (Reithrodontomys creper), 224. Rodriguez's Harvest Mouse (Reithrodontomys rodriguez), 225. Narrow-nosed Harvest Mouse (Reithrodontomys tenuirostris), 226. Small-toothed Harvest Mouse (Reithrodontomys microdon), 227. Costa Rican Harvest Mouse (Reithrodontomys cherrii), 228. Chiriquian Harvest Mouse (Reithrodontomys garichensis), 229. Musser’s Harvest Mouse (Reithrodontomys musser), 230. Baker’s Harvest Mouse (Reithrodontomys baker), 231. Fulvous Harvest Mouse (Reithrodontomys fulvescens), 232. Hairy Harvest Mouse (Reithrodontomys hirsutus), 233. Sonoran Harvest Mouse (Reithrodontomys burt), 234. Volcano Harvest Mouse (Reithrodontomys chrysopsis), 235. Eastern Harvest Mouse (Reithrodontomys humulis), 236. Western Harvest Mouse (Reithrodontomys megalotis), 237. Plains Harvest Mouse (Reithrodontomys montanus), 238. Salt-marsh Harvest Mouse (Reithrodontomys raviventris), 239. Sumichrast’s Harvest Mouse (Reithrodontomys sumichrasti), 240. Zacatecan Harvest Mouse (Reithrodontomys zacatecae), 242. Northern Grasshopper Mouse (Onychomys leucogaster), 243. Southern Grasshopper Mouse (Onychomys torridus), 244. Osgood’s Deermouse (Osgoodomys banderanus)

Subspecies and Distribution. R.r.raviventrisDixon,1908—SportionofSanFranciscoBay,California(USA). R. r. halicoetes Dixon, 1909 — N portion of San Francisco Bay, California (USA).