'";;,J5"'] PROCKKDINCS OF TMK NATIONAL MI'SHrM. 615 



'riic I>i(iil(>j)ltis nthrscdis Copi'* iiilialtits tlic Kaliaiiiaii Islainl of Nrw 

 I'lovideiice. 'J'lu' I>. punctaliis is it'strictfd to tlii' «'asteni rr;,M(m of 

 Xeanttica ; the IK anmhilis hdoiij^'s to the Central, the I'aoilic, and the 

 Sonoian, while tiic />. rryalis is Sonoran, exrendinj; its ranj^e as far 

 sonth in Mexieo as tlieTiena Teinphida of \( ra Cm/. 



Diadophis regalis I'.il. and < ;iril. 



Cat. Serp. \. Aiiht., Is'.:!, j). !l.'>; V. >i. and Mix. IJoiind. Siirv.. ii, ]<>9, p. J.', I'l. 

 xix, Fi}^. "J; ('<»pi', Check List, 187.'., ji. :\k. 



Body above, iinifonn j^ieenish ash to Ithn Uisii lirowii ; lieneatli, li;,dit 

 yellow, scattered all o\er with sniall IdacU spots. Dorsal scales in 

 seventeen rows. Superior labials, seven : temporals, 1-1-1 ; oculars, 2-'J. 



Head i)roportionately short and broad behind ; head llattened above : 

 snout rounded. Eyes very sniall. I'rontal [>late sul)pentajj:onal, taper- 

 ing posteriorly. Superciliaries narrowei' anteriorly. l>oily lonj; and 

 subcylindrical. Scales proportionally lar^^e and elon;;ated, in seven- 

 teen rows ; those of the outer row consi>icuously broader. The upper 

 and lower jaws and inferior surface of head spotted with black, on a 

 lij^ht ground. The black spots of the interior surface extend consider- 

 ably beyond the anus. 



Two distinct color forms are represented in this 8i)ecies, as follows : 



I'pper Hurfaces, bluiaU ashen; color of alidomen (ixtendinfj on first row of Hcnles; 



7>. r. refialis. 



Upper surfaces to jjastrostcfjos brownish black ; /'. r. aniyi 



Of fourteen specimens of tin* Diadophis nu/alis examined, all have 

 seven superior labials but two, which have eight. 



Diadophis regalis regalis l$d. and (Jinl. 



Loc. cit. Copel. c. IHadophii puncUitua retjalix Cope, ItnlL V . 8. Na,t. Mns. :i'2, l"*"*?, ji.SO. 

 Sonoran region. 



Diadophis regalis aruyi Kennicott. 



lHadoplitnaniyi Kennicott, I'roc. Acad. Phila., 18.V.», p. if.> ; Cope, Check LiHt, lH7r». p, 

 :18; IHadopliis pnnctatns aniyi Cope, MnlJ. I'. S. Nat. Mns. :<y, li-i>7, j». H' ; .Ian, 

 Icon. Gen. Olid., i. 1.'), vi, Fij;. .'.. 



Central region: Mexican ])lateau to (liiaiiajuato and /acuaUiiian, 



\'era Cruz. 



Diadophis auiabilis ltd. and (iird. 



Cat. 8crp. N. Aiiier., 1-^.V.?, p. IIH; I>. docilh tid. and (iird.. 1. c. ill: />. pulchclhii, IJ4I. 

 and Gird., 1. c. ]». lir>; />. puiirtatuav&r. Htictogeni/s Cope, Proe. Acad. I'hila.. lHf.0 

 p. 'ioO; D. tej-cnsis Kennicott, 1. c, I^jGO, p. :^2'*. 



Body above, bluish slate color to deep blackisii l)ro\vn : ])eneatl). yel- 

 lowish white with crowded small black spots. < )ccipital ring narrow. 

 Dorsal scales in lil'tceii rows: labial plates, seven above; ocidars, "J-L'; 

 temporals, '2-2-2. 



Proc. Am< 1. IMiilos. .^oc. !»<>, p. 4UX 



