MEXICAN HERPETOLOGICAL MISCELLANY—SMITH 389 
30386-30388, Juchitan, Oaxaca; No. 110528, Tonalé, Chiapas; M.C.Z. 
Nos. 27799, 27801, Tapanatepec, Oaxaca; and Univ. Mich. Mus. Zool. 
No. 82603, La Mixtequilla, Oaxaca. 
Diagnosis.—Like splendidus splendidus and s. luciodorsus, except: 
Ventrals 222 to 234, average 229 (16 specimens) ; dorsal body bands 
47 to 67, average 57, broken laterally on all except about anterior third 
of body. 
Description of holotype-—Head twice as wide as neck; portion of 
rostral visible from above narrow, but little shorter than distance be- 
tween anterior tips of nasals; internasals a third size of prefrontals; 
latter narrowly in contact with supraocular; frontal pentagonal, 
anterior edge nearly straight, posterior angle slightly less than a 
right angle; length of frontal (4 mm.) a third greater than its dis- 
tance from snout (3 mm.), a little longer than median suture be- 
tween parietals (3.5 mm.), about two-thirds maximum length of 
parietals (5.5 mm.), and about a third greater than its maximum 
width (2.7mm.); nasal completely divided, nares largely in an- 
terior portion, which is much higher and a little larger than posterior 
part; loreal nearly square, about as high as long; a single large 
preocular; postoculars 2-3, upper much the largest; temporals 1-2-3; 
supralabials 8-8, sixth largest, third, fourth, and fifth entering orbit; 
infralabials 10-10, five in contact with anterior chinshields, 2 (fifth 
and sixth) with posterior; chinshields nearly subequal in size, pos- 
terior a little shorter than anterior and separated from each other 
medially by a series of small scales; 3 small scales between chinshields 
and first enlarged ventral. 
Dorsal scales in 17-17-15 rows, smooth, with 1 or 2 apical pits; 
vertebral scales somewhat wider than others; ventrals 222; subcaudals 
127; anal divided; total length 774 mm., tail 230 mm., female. 
Color—Ground color light brown, stippled; a series of 58 cross 
bands on body extending to edges of ventrals, and covering about 
114 to 21% scale lengths middorsally; spaces between anterior bands 
a little less than length of bands middorsally, but increasing in size 
posteriorly, the posterior bands separated by spaces which may be as 
much as 11% times as long as the bands themselves; a very irregular, 
broken, narrow, dark streak on middorsal line between bands; bands 
a little narrower on sides than middorsally; anterior 20 bands un- 
broken laterally, but the twenty-first and all posterior bands are 
broken laterally on the left side (at seventy-ninth ventral), while on 
the right side the twenty-fourth band is the most anterior broken 
band (at ninety-first ventral) ; the lateral break in the bands becomes 
much greater posteriorly so that there remains on the posterior part 
of the body a median series of large spots, extending laterally to the 
fifth scale row, separated from a lateral series of smaller, poorly de- 
fined spots involving the two edges of the ventrals and the first and 
