422 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



DRYMARCHON CORAIS MELANOCERCUS Smith 



Drymarchon corais melanocercus Smith, Jouru. Washington Acad. Sci., vol. 31, 

 pp. 473-474, 1941. 



Four specimens ■were secured: Nos. 110872-3 at Piedras Negras, 

 Guatemala; No. 110870 at Tenosique, Tabasco; and No. 110871 at 

 Palcnque, Chiapas. A very large specimen found at Piedras Negras 

 measured 8 feet 9 inches in total length, in life. 



The Museum has four other typical Mexican specimens, from Mex- 

 ico (No. 1416); Yucatan (No. 6554); Chichen Itza, Yucatan (No. 

 46393); and Mirador, Veracruz (No. 25093). One specimen (No. 

 46447), from Metlatoyuca, Puebla, is an intergrade with erebennus; 

 its color is like that of melanocercus, with w T hich it may be associated. 



Two specimens collected at Tonala, Chiapas (Nos. 110875-6) and 

 one from near Escuintla (La Esperanza), Chiapas (No. 110874), ap- 

 pear to be intergrades between rubidus and melanocercus; for geo- 

 graphic reasons it seems best to associate them with the latter race. 

 Like them are four others in the Museum : No. 30526 from El Barrio, 

 No. 46496 from Santa Efigenia ; No. 61959 from "Tehuantepec," Oax- 

 aca; and No. 46587 from Valley of Comitan, Chiapas. These pre- 

 sumed intergrades may well be considered eventually as a distinct 

 race. 



DRYMARCHON CORAIS ORIZABENSIS (Duges) 



Drymarchon corais orizabensis Smith, Journ. Washington Acad. Sci., vol. 31, 

 pp. 477-478, 1941. 



A single specimen, No. 110886, is from Potrero Viejo, Veracruz, 

 collected by Dyf rig McH. Forbes. 



The Museum has one other typical specimen, No. 24999, from Mi- 

 rador, Veracruz. Included in the same series (Nos. 25000-3) are four 

 specimens that appear to be intergrades between melanocercus and 

 orizabensis; I consider that they more closely approach the latter than 

 the former. 



DRYMARCHON CORAIS RUBIDUS Smith 



Drymarchon corais rubidus Smith, Journ. Washington Acad. Sci., vol. 31, pp. 

 474-476, 1941. 



Nine specimens were taken: Oaxaca: Ixtepec (No. 110885) ; Tres 

 Cruces (No. 110880) ; Tehuantepec (Nos. 11088lU) ; Cerro Arenal 

 (Nos. 110878-9). Puebla: San Diego, south of Tehuacan (No. 

 110977). 



The Museum has six other typical specimens: Rosario, Sinaloa (No. 

 46430, type) ; San Sebastian, Jalisco (No. 46588) ; Colima (Nos. 61948- 

 9) ; Acapulco, Guerrero (No. 46538) ; and Tehuantepec, Oaxaca (No. 

 30425). Another specimen, from Maria Madre Island (No. 24683), 



