1048 REPORT OF NATIONAL MUSEUM, 1898, 



aiul abdomen are asliy olive, with irregular heavy black blotches upon 

 the latter, more numerous along the middle third, but off'eriug no indi- 

 cation of a narrow black line as in J^. elegans couchii. On the first three 

 rows some scattered scales have black spots on their bases and edges. 

 Head above dark olive; upper labials light olive with vertical edgings. 



A young specimen is entirely black ; the dorsal stripe obsolete, being 

 indicated only by a faint line on a single row of scales; the lateial 

 stripes very indistinct; the first and part of the second row of scales 

 entirely black. A whitish line along each side of the abdomen formed 

 by a white spot at the end of each scute. These are also margined 

 posteriorly with the same color. Throat whitish. 



The remarkable elongation of the snout will distinguish this species 

 from any others at jjresent known, excepting U. multlmaculatd, from 

 which it differs in other respects. The snout is more elongated, and 

 decidedly more pointed than in U. e. coucJiii or U. leptoeephalii ; the 

 head is not at all depressed anteriorly as in E. leptocephala, and the 

 eye is strikingly larger. The colors of the back and abdomen are 

 darker, and the rows of scales are twenty-one, not nineteen. As com- 

 pared with Ij. e. couchii, which it most nearly resembles, beside the 

 difference in the form of the snout, the head is depressed posteriorly 

 (not anteriorly); hence the crown is quite plane throughout, while in 

 U. e. couchii the crown is somewhat arched, this form being more 

 observable upon the occipital and frontal region. In E. angusfiro.stiis 

 ^the general form is stouter, while the head is longer, and hence a greater 

 elongation of the frontal and parietal plates. The scales of the upi)er 

 rows are also larger and more elongated, and more strongly carinate. 

 The tail is stouter, being considerably less than one-fourth the total 

 length, while in E. e. couchii it is fully or more than one-fourth. This 

 member is also very slender, the body tapering abruptly near the anus 

 in the former species. The dorsal stripe, though narrow, is not want- 

 ing, and the abdomen is much darker, being ashy olive, with heavy 

 black blotches throughout, instead of light yellow or grayish olive, and 

 there is no indication of the central line. The young specimen is strik- 

 ingly different from the young of E. e. couchii. 



Temporals 1-2-3 on one side and 1-3-4 on the other. The tail is 

 longer than in E. eleyans, entering the total length three and one-fourth 

 times. 



But one specimen has been thus far obtained. The elongate muzzle, 

 narrow labial plates, and longer tail distinguish it from the allied spe- 

 cies. The coloration is also quite i)eculiar, and may be characteristic, 

 as the specimen is small. 



Eutwnia anf/itstirosiris Kennicott. 



