%'Jl!' PHOCEKDINGS OF TlIK NAI'IONVI. MIJSKIIM. 60l 



l!:i< k Iraverscil l>y lioin niiictfcii l-i tweury-uiio lila;'k frosH-littiids uf tliri-«« ami :i 

 half scales in length ; there arc six oti tho tail. Holly iiiiiforiri C. e. iauzomi. 



Tlioso subspecies i)ass into each otlicr by distinct j{ri\(l:iti(»iis,altlioimli 

 the intermediate tbiins are less abundant flian the types. 



This is a cliaracteristic species of western Texas, It is connnon west 

 of Kort Worth to Fort Ct)ncho and about l[ch)t«'s in the South. It ex- 

 hibits a Ki't'at ran<;'0 of color- variation, and, sin(re it is evident that the 

 G. isozona must be reckoned as one of its varieties, its ran<,'e extends to 

 Utah and Arizona. 



Contia episcopa episcopa Keiiii. 



Cope, Bull. II. S. Nat. Miia. \n. 'JO, 1-HO, p. -Jl ; Coi.e, Hull. V. S. \al. Mns., N... •.-n. 

 ISSd, p. *J1. Liiiiiiirosoma rp'isropitm Keiiiiicott. U. S. Mex. H(niii(l..Siirv., ii, Keptih's, 

 1859, p. 22: I'l. viii, Fi^ 'J. Ifomalosonta episcopiim .Jan, Icon. Gen. Ophiil., i, i:{, 

 iv, FifT. o 



Texas. 



Contia episcopa torquata Cope. 



Hull. ['. «. Nat. Miis., No. 17. 18S(i, p. -Jl. 



Northern Texas. 



Contia episcopa isozona Cope. 



Hull. U. S. Nat. Mu8., No. 20, 1880, p. 21. Contia iHo:ona Cope., Proc. Acail. I'hila.. 

 18C.6, p. :?ilt. Ropt. U. S. a. G. .Surv. W. of 100th Mer., v. p. .-.:?7. I'l. win. 

 Fi.^'s. l-l«. 



There are four specimens of this form in t lie coUeetion : in two of them 

 the ground coh:»r is ashy, in two red. 



I suspect that the Honora semiamudafa of Baird and Girard was estab- 

 lished on an abnormal specimen of tiiis subspecies. That specimen is 

 remarkable in having the superciliary plate divided symmetrically on 

 each side by a suture, which cuts otf a plate whose apex reaches the 

 l>arietal and which P.aird and Oirard term a third postocnlar. Tho 

 muzzle was somewhat wrinkled, so as to produce folds of the integu- 

 ment; this led to the mistaken belief that the nasal is divided. Omit- 

 ting these two characters, there remains only a slightly more protuber- 

 ant rostral plate, which is not more in my opinion than an individual 

 peculiarity. The coloration is identical with that (tf the C. e. ixozona. 

 ^lore specimens will be necessary to settle the (piestion delinitely. 

 Should the identification here suggested i)rove necessary, the name of 

 the s])ecies will stand as Conda srmianni(hit(i, with the subspecies rpin 

 copa, tnrqu<jf<i, and srminnnnlatit. 



Contia uiitis \U\. .lyil (iirii. 



Cat. Serp. N. Amor., ISiV.l, p. 10(»; Cheek List Hatra. Kept. N. Anier., 1-^T.'.. p. M\. 

 IIomahiKoiia mitt'. .Tan. Icon. (Jon. Oph. i. ^'^, iv. Vig. 1. 



California. 



LODIA Hil. an<l Ginl. 



Hil. and Gird.. Cat. .^erp. N. Ain.r., l-.M!. p. llC. 



Head distinct from the body. Two frontal i)lates, a small anterior one 

 being situated between the posttrontais imnn'diately in advance of the 



