CROCODILIANS, LIZARDS, AND SNAKES. 

 Crotalua adamaiiUia atrox Baird and Girard — Cuntiuued. 



11C7 



Catalogue 

 No. I 



Number 



of speci- 



mous. 



Locality. 



Capo St. Lucas, L. Cali- 

 fornia. 

 Gila aud Colorado Bottom. 



Brookhaveii, Mississippi. . 



Tabac, Souora 



La Paz, L. California 



Fre.siiq, California 



Arizona 



Chiliuabua, Mexico 



Brazos Kiver, Texas 



Betwocii San Pedro and 

 CiiinMiidni SpriiiK.s. 



Fort Sldi'ktdi), Texas 



Pacific n. i;. survey, 32^. . . 



Texas 



Fort Hiiacbuca, Arizona.. 



Pidulingue Bay, Lower 

 California. 



San Diego, Texas 



Stanton, Milton County, 

 Texas. 



Fort Clark, Texas 



Colorado River, east bank 

 10 miles below U. S. bor- 

 der, Mexico. 



Laguna Stat ion, New Kiver 



San Diego County, Cali- 

 fornia. 



When 

 collected. 



— , 1874 



1882 

 1879 



From wboui rcccivi 



J. Xantus 

 A. Scliott. 



T.J. H. Keenan . . 

 Dr. Thos. Webb . . . 



L.Belding 



Gu.stav Kiscn 



H. AV.Hcnshaw... 



E. AVilkinson 



Dr. B. F. Shumard. 



P.Dufly 



Capt. John Pope.U. S. A. 



Dr. C. B. K. Kennerly 



Benson 



U. S. Fish Commission . . 



William Taylor . 

 Dr. J. K. Vance .. 



Dr. E. A. Mcarns . 

 do 



-do. 



Nature of 

 s]iociiiieii. 



Alcoholic. 



do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 



do. 

 do. 

 do. 

 do. 

 do. 



do. 

 do. 



do. 

 do. 



do. 



CROTALUS RUBER Cope. 



Crotaliifi adamanieus ruber Cope, Troc. U. S. Nat. Miis., XV, 1892, ]>. 6'JO. — Va.n Den- 



Biuciii, Proc. Cal. Acad. Sci., ISiKJ, p. 1007. 

 Crotahis atrox ruber STE.JNE(iKK, Kept. Nat. Mus. for 1893, 1895, p. 139. 



Mnzzlc slioiteued. Kostrul plate a little wider tbau liigli; plates ot 

 upper side of canthus rostralis smaller than in otber species, the pos- 

 terior especially, being smaller than the anterior, and descend laterally, 

 obliterating the canthus rostralis and the superior loreal. One loreal. 

 Five rows of scales between orbit and labials^ eight rows between 

 superciliary plates. 



The color is ligiit red or reddish brown, marked above with deep red or 

 reddish spots. These are of a longitudinally oval form anteriorly, but 

 posteriorly they have a diamond shaped form. They have no distinct 

 lateral borders, either light or dark; but they are separated on the 

 median line of tiie back by a single row of yellow tipped scales. Traces 

 of brownish-red indetinite spots opjiosite their lateral angles as well as 

 their interiorals. Head without marking, except a faint trace of a pale 

 line from the eye to the border of the mouth below it. Inferior sur- 

 faces, yellow. Tail, white with hve black cross-bands, of which all but 

 the first are complete rings. 



Cat. No. 9209; scales, 27; upjier labials, 17; gastrostei^os, 186; iirostogcs, 20; total 

 Icngtli, 1,245 iiini. (with rattle) ; length of" tail, 122 iiiin. (with rattle) ; rattle, 44 mm. 

 (seven joints and a button). 



The accession of three specimens besides the type, since its descrip- 

 tion, enables me to define this form more exactly, and to raise it to the 



