824 BULLETIN 56, UNITED STATES NATI(3NAL MUSEUM. 



collection })y Dr. J. A. Allen, have the pelage longer throughout, 

 while the tail, especiall3% is much more bushy. 



Rciiiarl'x. — To the southward, be^'ond the liio Grande, this animal 

 apparently inter^rades with Otospermopldlus gnunnmrm couchil,'^ a 

 wholly black form described ])y Professor Baird in 1855, from speci- 

 mens collected by Lieut. D. N. Couch in the Mexican States of Nuevo 

 Leon and Tamaulipas, near the United States and Mexican boundary 

 line. 



OTOSPERMOPHILUS BEECHEYI (Richardson). 

 CALIFORNIA GROUND-SQUIRREL. 



Arclotnys {Spennopliilus) heechei/i Richardson, Fauna Boreali-Ainericana, I, 1829, 

 p. 170, pi. XII B (original description and tigure); Zoology of BeecheyV. 

 Voyage, Mam., 1839, p. 8. 



AniomyH heecheiii, Wagner, Suppl. Schreber's Silngeth., pi. ccxe. 



Spermophilus heecheyi, "F. Cuvier, Suppl. Buffon, Mam., I, 1831, p. 331." — 

 Brandt, Bull. Cla.sse Physico-math. Acad. Imp. Sci. St. Petersb., II, 1844, 

 J). 380.— Baird, Proc. Acad. Nat. Sci. Phila., 1855, p. 334; Mam. N. Am., 

 1857, p. 307, pi. Ill, fig. 2 (animal); pi. xlvi, fig. 3 (.skull). 



ISdurus {Macro.ius) (■allfornlciin Lesson, Descr. de Mam. et d'Ois. Nouv., 1847, 

 p. 143. 



Spermophilus grammarus var. heecJwyi, Allen, Proc. Bost. Soc. Nat. Hist., XVI, 

 1874, p. 293; Monogr. N. Am. Rodentia, 1877, p. 827. 



{Spermophilus grammurus] beecheyi, Elliot, Field Col. Mus., Zool. Ser., II, litOl, 

 p. 88 (Synop. Mam. N. Am.). 



Spermophilus grammurus beecheyi, Miller and Rehn, Proc. Bost. Soc.' Nat. Hist., 

 XXX, Dec, 1901, p. 50 (Syst. Results Study N. Am. Mam. to close of 1900). 



Type-locality. — The neighborhood of San Francisco and Monterey, 

 in California. 



Description. — Size smaller than OtosjK'rmophilv.^ gra?)imvri(s- {ne&vW 

 as large as the eastern gray squirrel), with a more slender body and 

 shorter tail. Ears high and pointed. Mamma?, six pairs (P. |, A. |, 

 1. 1 = 12). Color above brown, grizzled and annulated with black in a 

 vermicular pattern; darkest anteriorly, and most grizzled and ver- 

 miculated posteriorly. Nape and sides of neck sih er gray, this color 

 prolonged l)ackward above the shoulder in the form of stripes which 

 are sometimes faintly traceable to the root of the tail, though usually 

 ending about the middle of the body. Ears black outside, grayish or 

 faintly rusty inside, and along po.sterior border. Top of head bister, 

 slightl}' dusky above orbits, which are encircled by white. Sides of 



"OTOSPERMOPHILUS GRAMMURUS COUCHII (Baird). 

 NEUVO LEON ROCK-SQIIRREL. 



Spermophilns coiichii Baird, Proc. Acad. Nat. Sci. Phila., 1855, p. 332. 

 Slpermophihts'] grammurus couchii, Allen, Bull. Amer. Mus. Nat. Hist., VIII, 



p. 68, April 22, 1896. 

 Spermophilus grammKrus couchii, Miller and Rehn, Pri)c. Bost. Soc. Nat. Hist., 



XXX, Dec, 1901, p. 50 (Syst. Results Study N. Am. Mam. to close of 1900). 



