48 PUBLICATIONS OF SPENCER F. BAIRD. 



1857. Baird, Spencer F. — Continued. 



38. HESPEROMTS, "Waterhouse. 



a. Hesperomys. ' p. 468 



146. Hesperomys leucopus, "Wagner 459 



147. Hesperomys texanus, "Woodhouse pi. viil, fig. 1 ; pL lii, fig. 5 464 



148. Hesperomys Gambelii, Baird, n. a 464 



149. Hesperomys austertis, Baird, n. s 466 



150. Hesperomys Nuttalli 467 



151. Hesperomys gossypinus, Leconte 469 



152. Hesperomys cognatus, Leconte 469 



153. Hesperomys BoyUi,'Ra,i\-A,u.s pi. viii, fig. 3 ; pi. lii, fig. 3 471 



154. Hesperomys m,yoides 472 



155. Hesperomys sonoriensis, Leconte 474 



156. Hesperomys michiganensis, Wagner 476 



157. Hesperomys californicus 478 



158. Hesperomys eremicus, Baird, n. s 479 



b. Ontcho.mys, Baird. 458 



159. Hesperomys Icucogastcr 480 



c. Ortzomys, Baird. 458 



160. Hesperomys palustris, Wagner pi. lii, fig. 4 482 



39. NEOTOMA, Say akd Ord. 



161. Neotoma floridana, Say and Ord pl.lii,fig.2 487 



162. Neotoma inexicana, Baird, n. s pi. liv 490 



163. Neotoma mieropus, B.aird, n. s 492 



164. Neotoma fuscipes, Cooper, Mss., n. s ' pi. liii, fig. 1 ; pi. liv. No. 936 495 



165. Neotoma occidentalis, Cooper, n. s pi. is, fig. 2 ; pi. xxi, fig. 4 ; pi. liii, fig. 3 496 



166. Neotoma cinerea pi. liii, fig. 5 ; pi. liv. No. 1C94 499 



166.* Neotoma magister, Baird, n. s pi. liii, fig. 4 



40. SIGMODON, Say and Ord. 



167. Sigmodon hispidus, 'Say and Ord 502 



168. Sigmodon berlandieri, Baird, n. s pi. liii, figg. 6-7 504 



41. ARVICOLA, Lackp. 

 a. Hypudaeus, Keys, and Bias. 



169. Arvicola gapperi, Vigors 518 



6. IIemiotomys, Selys. 



170. Arvicola riparia, Ord 522 



171. Arvicola Jireweri, Baird,n.s 525 



172. Arvicola rufidorsum, Baird, n. s 526 



173. Arvicola Toionsendii, Bachman pi. liv, No. 1595 527 



174. Arvicola montana, Pealc pi. xxi, fig. 2 528 



175. Arvicola longirostris, Baird, n. s 530 



176. Arvicola edax, Leconte 531 



177. Arvicola calif ornica, Peale ^ 532 



178. Arvicola occidentalis, Pcale 534 



179. Arvicola modesta, Baird, n. s 535 



c. CuiLOTUS, Baird. 516 



180. Arvicola oregoni, Bachman 537 



d. Pedomys, Baird. 517 



181. Arvicola austera, Leconte pi. liv. No. 1587 539 



182. Arvicola cinnamonea, Baird, n. s pi. liv, No. 1714 541 



183. Arvicola Haydenii, Baird, n. s 543 



e. PiTYMYS, McMurtrie. 517 



184. Arvicola pinetorum, Leconte pi. liv, No. 1719 544 



42. MTODES, Pallas. 



a. SYNAPT0JIY6, Baird. 554 



185. My odes Oooperii, Baird, n. s 558 



