HR&DLICKA ] 
BRAIN 
WEIGHT IN VERTEBRATES 
97 
I. ARRANGEMENT BY SPECIES.—Continued. 
MAMMALS. 
SCIURIDA : Sguirrels and Marmots. 
Dimensions of Animal, 
: ches Sy tte Propor -| Length, 
eet ree) eatin, |), aly. | Bicin, | Beninto,| ome ct Length Lepeen 
Body. Point of — Tail. Foot. 
Tail. 
224,917 Sciurus| 9 jadolescent| medium. | 4o01.— 8.85 as 4 
rufiventer 
Sciurus rufiventer | 2 oO se 403.— Teil ey 52 
$e ee Q | adult. ee 522.5 8.95 1g ys. 
“é “ec a “<é “cc 559.— 9.15 Tt Ol 
224,915 Sciurus| # 3 a 578.— 9.05 Le {oys! 
rufiventer 
Sciurus rufiventer | 9 aie oh 584.— 8.4 I: 70 
6c 3 2 “cc “é 650.— 9.2 I: 71 
Sciurus carolin. Q \adolescent a 300.— 6.44 P47, 
224,437 Sciurus| 9 U6 ae 312.— 6.7 Tey 
carolin. 
Sciurus carolin. 2 ot St 321.— 6.83 ee yy) 
ae es 2 adult ee 364.— 7.02 Tp 52 
| or near. 
ee OG Q adult. se 399.— hess Tse 53 
“ec ce a “ce ce 401.— Tork qe is 52 
“<“ a3 ie) 73 “c 404.5 7.6 I: 53 
ce ce fe) 66 6“ 410.— 6.55 Tt: 63 
(73 x3 ‘a “é (73 438.— Fa) Ts 61 
“ce “6 2 ce 66 445.— 7.84 I: 57 
cc 6“ Zz 66 66 459.5 ets I: 64 
6“ 6“ fe) 6“ 6c 468:— 7.03 Tos 67 
“ec 73 Q “ec “ec 470.— 8.22 1 aD 57 
“ce “cc a “cc 3 502. — 7.67 I: 65 
“ce “é Q ce ce 502 oa Terr I: 65 
“é“ ce ce) 66 “c 510.—- 6.8 I: 75 
“c 6“ é “6 66 514.— 7.58 Te (at 
at an 2 ae fc 522.5 8.95 I: 58.4 
3 if z 6c a3 595.5 8.25 ing a2 
224,901 Sciurus| ¢ |adolescent ag 100.— 4.09" TD S2q 455 
hudson. 
Sciurus hudson. | 9 | 8 months. st 102.5 3.82 T27 
6“ 6 a “cc 6c 140. — 4.05 Te 35 
ub se Q |adolescent a 123,.— 3.94 Don 
«¢ ee 2 adult, ee 139.— 3.97 Te ah 
or near 
cf oe © | adult 6 145.— 3.87 cya, 
ce ia 2 ce “ce 147.— 4.— Ts 37 
224,446 Sciurus| ¢ St Gi 152.5 4.43 lige YI 
hudson. 
224,936 Sciurus| 9 OG a 158.— AE is) 39 
hudson. 
224,448 Sciurus| ¢ | 66 a 173.5 4.02 te le} 
hudson. 
Sciurus hudson. | 9 Ch ee 179.— 4.2 mes-4226 
Sciuropterus g | young. Ch 32.— 2.6 13502 
volans 
Sciuropterus Q jadolescent ue 51.— 1.65 inp e 3 
volans 
Sciuropterus Q | adult. ss 55-— 1.84 WE Bie: 
volans 
224,447 Sciurop- | ¢ UG ee 58.3 1.92 P:! 30 
terus volans 
