SCIURID—SCIURUS BOOTHLAE. 745 
body; but in this species the form is stouter than in either of the others. 
Though so variable in color, the character of the coloration is quite different 
in the three forms, as is the nature of the pelage. Possibly additional mate- 
rial will show that some of them (possibly all) intergrade, but the consider- 
able number of specimens before me leave me strongly impressed with their 
distinctness. The character of the pelage is widely different in each, being 
soft and full in S. aure?gaster, longer and coarser in S. boothie, and coarser 
still, sparse, stiff and shining in S. hypopyrrhus. S. hypopyrrhus is further 
distinguished by the great length and narrowness of the ears. 
TaBLE XLIII.—Measurements of nineteen specimens of SCIURUS BOOTHLA. 
& 5 From tip of nose to— | Tail to end of— | Length of— a 
| 2 — & 3 
a |e F Fy z 
} a Locality. . é 7 a et 
» | 2 é : [seu lese| Be 
&/3 a 3 id a esau ler see MRESe es 
2 |2 Pigea GS: lash Solute Pevicee a se 
5 |S a; A |}aA] oOo] aA > el Ap Sense te Mz 
Fec86 do | 0.98 | 1.85 | 2.20) 12.30 9. 25 10.75 | 1.35 |...... Skin 
11368 |...-. o | 1.00 | 2.00 | 2.30 12. 50 9.75 | 12.25 2.35 } -. do, 
(1701 }..-. 2. 2.30) 0.55 | do. 
11365 | .- 2.27 | 0.57 | -do 
il413 |:... 2.23 | 0.50 |.-do 
1411 2.15 | 0.60 | do 
11364 2.25 | 0.60 | -do. 
B414 2.10 | 0.57 | .do 
11702 | .. 2.25 | 0.60 |.-do, 
t14l4 |... 2.22 | 0.55 | .do. 
WWE i 2.05 | 0.55 do. 
12054 | .. 2.30 | 0.62 |..do. 
12048 | 102 2.37 do. 
12049 | 91 2.30 | ... do. 
12046 | 88 2. 33 | 0.65 |..do, 
12047 | 87 nee 2.45 | 0.65 | .do 
1i420 | .. 5 2 2.5 PAGO) see ooed IRAE Geo .55 | 2.30 | 0.65°]..do. 
Din eens | pasa OO tetera an. coseseceaccencees (Gr || e0o | eo00)| 9: 40:) 13525)) 9.50.) 12.50) | 2.459. .- 5 0.70 |. .do, 
8506 }.-.- 2. 45 | 0.70 |..do. | 
