13. PHRYNOSOMA 4-03 



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

 natum and P. blamvillii. It agrees witrh P. b. blainvillii and 

 jP. b. frontale in the presence of an elongate spine behind 

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

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

 b. frontale y 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). 



Phrynosoma, coronatum DUMERIL et BIBRON, Erpetologie Generale, Vol. 

 IV, 1837, p. 318; DUMERIL, Cat. Meth. Coll. Kept. Mus. Hist. 

 Nat. Paris, 1851, p. 78; BOCOURT, Miss. Sci. Mex., Reptiles, ic 

 livr, 1870, pi. XII, fig. 10, et 46 Hvr, 1874, 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, 



