262 RH1THRODONTOMYS. 



Measurements. Average total length, 136,5; tail vertebra 

 hind foot, 17; ear, 11.2. Skull: occipito-nasal length, 19.5; Hensd, 

 14; zygomatic width, 8.5; interorbital constriction,. 3; length of 

 nasals, 7 ; palatal length, 7.3 ; length of upper tooth row. 



a. pallidus (Reithrodontomysf), Rhoads, Amer. Nat., 189; 



pallidus (Rhithrodontomys) , Elliot, Syn. X. Am. Mamtn. r 1901, 



p. 152. Id. Suppl. p. 494. 

 LOWER CALIFORNIA HARVEST MOUSE. 



Type locality. Santa Isabel, San Jacinto Mountains, San Diego 

 County, California. 



Geogr. Distr. Southern California and northern Lower Cali- 

 fornia, Mexico. 



Genl. Char. Larger than R. Umgicaudus and paler. 



Color. Above buffy gray, darker on dorsal line; face and lateral 

 line ochraceous ; under parts and feet white ; spot between fore legs 

 and on breast buff; tail bicolor. 



Measurements. Total length, 137; tail vertebrae. 73; hind foot, 

 16. Skull: occipito-nasal length. 19.5; Hensel. 14; zygomatic width, 

 10 ; interorbital constriction, 3; breadth of braincase. 9-3; length of 

 nasals, 7 ; palatal length, 7. 



252. saturatus (Reithrodontomysr),. Allen & Chapman, BuH. Amer. 



Mus. Nat. Hist., 1897, p. 201. 

 LAS VIGAS HARVEST MOUSE. 



Type locality. Las Vigas, State of Yera Cruz, Mexico. 



Geogr. Distr. State of Vera Cruz, Mexico ; n 



Genl. Char. Similar to /?. Mfgofotftt, but larger 



Color. Upper parts dark brown, lined with, black on. 

 line and tinged with grayish fulvous; sides grayish ftrlvoas; under 

 parts whitish plumbeous; tail dark brown above* fpacjr below; lands 

 and feet grayish white. 



Measurements. Total length, 14$; tail vertebr*. 7/4; bind foot, 

 18. Skull: total length, 31; basal length, 17; XTgcKstattc wiitav n; 

 width of braincase, to; iaterorbital coostrktwo, 2.5; tettgUt of 

 nasals, $ ; palatal length, 8 : length of upper tooth, row,. 3;^. 



a. <*CW*M* (RfiAredoniomy^ . Mrr. fc Brae. Wasftu Acatl SCMBL, 



. 556. 

 CINEREOUS HARVEST 



Tyf* !Mwjk Ch*khkomut^ State t 



GenL CJkor, ^Siiailar to & sohirani?,. Vat xwy aaiai faki and 

 grayer, particularly th*? toad and sfeyttkters; tail $hwrtt*r sod: mssre 

 shaq.>l v tncolor ; skull TJmJJar but sikf^tbr saMdtar : rostrum 

 short er." 



