806 



REPORT OF NATIONAL MUSEUM, 1898. 



There are no markings on the superior surface of this region, but the 

 sides are striped, the stripes disappearing on the second fourth of the 

 length of the body. These stripes are bounded by a brown line on 

 tlie middle of each scale of the second and third rows. Between these 

 the color is like that of the back, while the adjacent halves of the tldrd 

 and fourth rows are light yellow. A fainter brown line runs along the 

 middle of the first row. Belly and throat immaculate light yellow, 

 except a few punctoB along the end of the first dozen gastrosteges. 

 Middles of nasal, loreal, and pre- and postocular plates yellow. Supe- 

 rior labials yellow, with a blackish superior border, extending from the 

 rostral plate back. Temporal region like the top of the head, immacu-' 

 late. A few black specks ou the geneial margins of the inferior labials. 



Gastrosteges 201, anal 1; urosteges, 134+. Total length (Oat. No. 

 ]981), 1,185 mm.j of tail (extremity wanting), 375 mm. 



A young specimen (Cat. No. 8434) is interesting as showing the distinct 

 ness of the color characters as compared with those of corresponding 

 age of the Z. tccniatus and with the adult Z. schottii and Z. lateralis. 

 In the first place, the stripes are much more distinct in this specimen 

 than in the adults, as is the case also with the Z. tceniatus. Moreover, 

 they extend farther along the length of the body, being traceable on 

 the middle third, though they are wanting posterior to it. The stripes 

 are a yellow one on adjacent parts of the third and fourth rows, bounded 

 below by a brown one on the adjacent parts of the second and third 

 rows. A yellow stripe succeeds on the adjacent parts of the first and 

 second rows, while another and paler brown stripe runs on the adjacent 

 parts of the first row and the extremities of the gastrosteges. This 

 pattern, it will be observed, is quite different from that which obtains 

 in any of the other striped species, as the M. ta^niatus, ornatus, scJiottii, 

 or lateralis. The head is entirely uniform greenish slate color above 

 and on the temples. The superior labials are yellow, the posterior 

 bounded above by a black line from the orbit to the neck. The muzzle 

 of this specimen is broken off. 



Zamenis semilineatus Cope. 



Catalogue 

 No. 



Number 

 of speci- 

 mens. 



Locality. 



From whom received. 



Nature of specimen. 



1981 



8259 



8434 



14745-6 



19678 



22199-200 



19678 



21053-4 



Colorado River, Arizona 



Arizona 



Camp Grant, Arizona 



Fort Huachuca, Arizona 



do 



Fort Bowie, Arizona 



Fort Huachuca, Arizona 



San Luis Mountains, Mex- 

 ican boundary line. 



A.Schott 



Lieut. G. M. Wheeler 



Rutter 



Lieut. H. C. Benson. . 



Wilcox 



Fisher 



Dr. T. E. Wilcox 



Dr. E. A. Meams 



Alcoholic, 

 do. 

 do. 

 do. 



