Isotely and Coralsnakes. 17 



Doliophis bivirgata, Malayan. Head and neck and undersurface red, 



rest black with a white lateral stripe. 

 Pseudechis porj)hyracens , The Black snake of Anstralia; with red 



bases of the outer row of scales. 

 Furina, a few species in Australia, of which F. oceipitalis with black 



and white rings. 

 Homorelaps and Aspidelaps, with a few species in South Africa. 

 H. lacteus, yellowish white with black bars or rings. 

 Ä. lubricus, orange or red with black rings. 



n. Opisthoglyphous Colllbrincie', the poisonfangs stand so far back 

 in the maxillary series that they are effective only during de- 

 glutition. 



Homalocranium, More than 20 species, from tropica! South America 



into Southern United States. 

 H. rubrum, Orizaba to Tehuantepec. 

 H. bocourti, Guanajuato, pale red without black spots. 

 H. annnlatum, Nicaragua. 

 Scolecophis, Mexico and Central America. 

 *S'. atrocinctus, Central America. 

 S. michoacanensis, Michoacan to Zacatecas. 

 S. aemula, Batopilas between Sonora and Chihuahua. 

 Erythrolamprns , about 9 species, Tropical America to Texas. 

 E. aescidapü (= Elaps venustissimus Wagl.). With endless variations 



in tropical South America. 



III. Aglyphous Coliibrinae. Not venemous. 



Coronella {Ophibolus s. Osceola of American authors), e. g. syspila 



CoPE ; gentilis B. et G. : elapsoidea Holbrook ; coccinea Schlegel ; 



anmdaia Kennicot; most of them treated by Boulengek as 



varieties of C. doliata L., United States. 

 C. micropholis s. polyzona; Mexico to Para. 

 C. pyrrhomelas, Arizona etc. 



Cemophora coccinea, Carolina, Florida to Mississippi. 

 Rhinochilus lecontei, California to Texas. 

 R. antonii, Mazatlan, Sinaloa. 



Urotheca = ElapGchrous, Tropical Mexico to Guiana. 

 U. elapoides = E. aequalis, Mexico to Guatemala. 

 U. bicinda, Guiana. 



Geophis, many species in Central and South America. 

 G. seniidoliata Orizaba district. 

 Tropidodipsas, Central America. 

 T. dumerili and T. faseiata. 

 Atractus South America. 



A. latifrons, Brazil; red with black and yellow rings. 

 A. elaps, Ecuador; black with wbite rings, or reddish with double 



black rings. 

 Zool. Jahrb. XXXI. Abt. f. Syst. 2 



