1917] Camp: Notes on the Systematic Status of Toads and Frogs 121 
head viewed from above rounded in outline; head-width contained 
three times in body-length; hind limbs short, posterior side of bent 
tarsus reaching forward to anterior corner of eye; fourth toe on hind 
foot reaching forward to end of bent knee; dorso-lateral fold indis- 
tinct, strongly pitted anteriorly ; tympanum nearly smooth, with seat- 
tered hispid points; web of hind foot very large, extending to tips of 
toes; outer metatarsal tubercle rudimentary, inner one small; plantar 
tubereles small; tips of toes not much expanded; distal end of flexed 
tibia, held at right angles to body, just reaching anus; color above, dark 
yellowish brown, obseurely marked with indefinite darker vermicu- 
lations ; lower surface yellow, faintly dotted with brown beneath chin ; 
upper lip below eye mottled; no dark cheek patch; hind limbs not 
distinetly barred with dark bands. 
Material—One hundred and fifty specimens in the Museum of 
Vertebrate Zoology from the following loealities in the Sierra Nevada 
of California. Tulare County: Taylor Meadow, 7000 feet altitude 
(nos. 8000-8010) ; Manter Meadow, 7000 feet (3012, 3013) ; Jackass 
Meadow, 7750 feet (nos. 3014-3019) ; Monache Meadow (nos. 3020- 
3033) ; vicinity of Ramshaw Meadow, 8800 feet (nos. 3034-3035) ; 
Whitney Meadows, 9800 feet (nos. 3036-3053) ; Whitney Creek, 11,500 
feet (no. 3055) ; Inyo County: Matlack Lake (as above) ; Yosemite 
National Park: vicinity of Peregoy Meadow, 7000-7300 feet (nos. 
781-5788, 5800) ; vicinity of Poreupine Flat, 8100 feet (nos. 5774, 
775, 5789, 5803, 5804) ; Tenaya Lake (no. 5790) ; Tuolumne Meadows, 
8600 feet (no. 5801) ; vicinity of Young Lake, 10,000 feet( nos. 5791- 
5796) ; head of Lyell Canon, 9700—10,500 feet (nos. 5797-5799, 5802) ; 
Vogelsang Pass, 10,450 feet (no. 6015) ; Vogelsang and Evelyn lakes, 
10,850 feet (nos. 5962-5986, 5988-6014, 6016-6027); and Sunrise 
Creek, 7300 feet (no. 5987). 
Variations —Three specimens from the southern Sierra Nevada 
and two from Young Lake, Tuolumne County, show faint traces of a 
lighter patch across the anterior part of the head, as in R. b. boylii. 
Nearly all the frogs from Whitney Meadows have the dorso-lateral 
folds unusually well developed. The dorsal color pattern varies 
widely. Occasionally the back is uniformly reddish-, brownish-, or 
blackish-yellow; more rarely it is evenly marbled with dark brown 
upon a dark yellow background with or without indefinite lighter 
spots; more frequently the darker markings remain as indefinite 
patches or as distinct black spots, thus approaching the pattern of 
Rk. pretiosa. The outline of the head viewed from above is either 
