13. PHRYNOSOMA 403 



Length to anus 



Length of tail 



Snout to ear 



Snout to gular fold- 

 Width of head 



Length of occipital spine- 

 Fore limb 



Hind limb 



Length of hind foot 



Base of fifth to end of fourth toe_ 



Remarks. — This species is closely related to both P. coro- 

 natuni and P. blainvilln. It agrees with P. b. bla'mvillii and 

 P. b. jrontale in the presence of an elongate spine behind 

 the broad subrictal, and with P. coronatum and P. b. 

 jrontale in having flat scales on the head. It is most like P. 

 b. frontaley from which it differs in having the largest 

 spinose gulars and the scales on the chest keeled, the head 

 more depressed and the occipital horns less erect. 



Distribution. — This lizard is known from a single speci- 

 men collected by Mr. L. Belding on Cerros Island, Lower 

 California, and four from the same locality recently 

 described as P. schmidti. 



81. Phrynosoma coronatum Blainville 

 Lower California Horned Toad 



Agama {Phrynosoma) coronata Blainville, Nouv. Ann. Mus. Hist. Nat. 

 Paris, Vol. IV, 1835, p. 284, pi. XXV, figs, i-ic (type locality, 

 California). 



Pkrynosoma corottatum Dumeril et Bibron, Erpetologie Generale, Vol. 

 IV, 1837, p. 318; Dumeril, Cat. Meth. Coll. Rept. Mus. Hist. 

 Nat. Paris, 1851, p. 78; Bocourt, Miss. Sci. Mex., Reptiles, le 

 livr, 1870, pi. XII, fig. 10, et 4e livr, 1 874, p. 239 (part); Cope, 

 Proc. Acad. Nat. Sci. Phila., 1866, p. 312; Cope, Bull. U. S. Nat. 

 Mus., No. I, 1875, pp. 50, 93; Yarrow, Bull. U. S. Nat. Mus., 

 No. 24, 1883, p. 70 (part); Cope, Bull. U. S. Nat. Mus., No. 32, 



