MEXICAN CONIOPHANES FISSIDENS — SMITH 



109 



various localities in the vicinity of Escuintla, Chiapas (La Esperanza, 

 Cruz cle Piedra, Salto de Agua, Finca Juarez, U.S.N.M. Nos. 109723- 

 109763) ; Tonala, Chiapas (EHT-HMS No. 5329). The "Tehuante- 

 pec" specimens presumably are from extreme eastern Oaxaca, Pacific 

 slope, Slevin {op. cit.) records 87 specimens from Finca El Cipres, 

 Volcan Zunil, Guatemala. Data presented by him are included in the 

 accompanying table. 



- Mr [ if^ 



Figure 33. — Distribution of the Mexican forms of Coniophanes fissidens: Dots, except as 

 indicated, punctigularis; inverted triangles, fissidens; triangles not inverted, dispersus. 



KEY TO THE MEXICAN SUBSPECIES OF CONIOPHANES FISSIDENS 



1. A regular row of relatively large dark spots near ends of veutrals, in addition 



to other dark flecks that may or may not be present ; dorsolateral white 

 stripe extending posteriorly a considerable distance on neck ; inner dark 

 border of dorsolateral tail stripes absent on posterior part of body, present 



only on tail fissidens fissidens 



No regular row of relatively large dark spots near ends of ventrals ; belly with 

 small flecks of black, or unspotted; dorsolateral white stripes very short 

 (no more than twice length of head), or absent posteriorly, or, inner dark 

 border of dorsolateral tail stripes present on posteiior part of body 2 



2. A series of dark spots between lateral and middorsal light lines ; dark border 



on inner edge of dorsolateral stripes distinct on body as well as tail ; scales 



in 21 I'ows f. punctig'ularis 



Color not as described; markings dim, except (in young) a middorsal dark 

 line , 3 



3. Ventrals fewer (120 to 122 in known males) ; caudals more numerous (81, 



male) ; ventral minus caudal index lower (41, male) f. dispersus 



Ventrals more numerous (126 to 133 in males) ; caudals fewer (64 to 76 in 

 males) ; ventral minus caudal index higher (£51 to 65 in males). 



f. proterops 



