98 bulletin: museum of comparative zoology. 



DD.' Body long and slender, rounded or flattened, very contractile; 

 ocelli i^resent in most species . . Lineus, p. 161. 



a. Head and body not strikingly different in color; without dis- 

 tinct markings. 



1. Dusky or brownish green, dark brown or reddish brown, 



commonly paler beneath ; a single row of 4 to 8 ocelli on 

 each side of head . . . . L. viridis, p. 162. 



2. Yellowisli, pale yellow with tinge of orange, dull orange, 



ochre, buff or yellowish brown ; margins of head pale or 

 colorless ; with 3 to 7 irregular red, purple or black ocelli, 

 of which the most anterior are largest. 



L. ftavescens, p. 166. 



aa. Snout and body of different color or with distinct markings 



on body ........ b- 



b- With conspicuous median dorsal stripe, but without trans- 

 verse markings. 

 1. Body deep brown or olive, with median dorsal stripe of 

 white or lemon yellow extending whole length of body 

 and widening out on head to form a broad white 

 marking . . . . L. albnlineatus, p. 173. 



bb • Without conspicuous median dorsal stripe . . c . 



c. With one or more narrow transverse rings of paler color. 



1. Body and head dark reddish brown or purple, with a 



narrow transverse white band connecting posterior 

 ends of cephalic furrows across dorsal surface of 

 neck . . . . . L. torquatus, p. 163. 



2. Body soft and flabby ; deep brown, chestnut or slaty, 



sometimes with greenish tinge ; with transverse 

 lemon yellow rings at intervals along whole length 

 of body and with 7 to 15 very inconspicuous, fine, 

 hair-like longitudinal lines of yellow color on dorsal 

 siirface ; of these latter the median line is more 

 distinct than the others and connects the diamond- 

 shaped enlargements of the transverse rings ; tip of 

 snout white, usually with 2 orange-colored spots. 



' L. pictifrons, p. 169. 



3. Body slender, deep brown, chocolate or drab, paler 



beneath, with series of very narrow and inconspicu- 

 ous white rings ; tip of snout and borders of cephalic 

 furrows white . . . L.trihoni, yi. 111. 



cc. Witliout transverse rings of paler color. 



1. Body pink, rosy flesh color, or pinkish red. sometimes 

 with tinge of blue ; snout white both above and 



