82 HELLER 



above brownish without darker spots. Scales in circumference 68 to 

 75- 



Sides of neck with two oblique folds ; no folds between ear-opening 

 and anterior oblique fold. Crest in male high; height at nape equal 

 that on tail. Sides of neck covered with scales. Plates on top of 

 head very irregular and unequal ; internasals confluent with prenasals 

 (one exception) ; prefrontals three to six. Dorsal crest in female low, 

 equal one sixth internasal width. 



Coloration in life of adult male, Cat. No. 4937, Stan. Univ. Mus. 

 Above dark brown, spotted with light gray ; crest grayish ; tail and 

 nape olive-brown ; limbs above lighter, more spotted ; top of head 

 olive-brown. Belly grayish ; breast red with dark blotches ; throat 

 and lower jaw also dark but with more red than breast. Sides of 

 body and neck lake "red; a black antehumeral spot. 



Eleven adult males are in the collection. None of the alcoholic 

 specimens show any light spots on dorsum. The coloration of the 

 breast varies from dark red heavily dark-blotched to lighter reddish, 

 obsoletely spotted with darker. 



Length of head and body 99 to 108 mm. 



Coloration in life of adult female, Cat. No. 4930, Stan. Univ. Mus. 

 Above dusky greenish, spotted with black, becoming dusky on tail and 

 brown on head; limbs above with much light olive. Sides of body 

 dark lake red, chest lighter red ; lower jaw and throat dark like sides 

 Belly and limbs below clay yellow; tail interiorly dusky yellow. 

 Sides of head light brown ; sides of neck dark red like throat ; a black 

 antehumeral spot. 



The five adult females in the collection show little or no variation. 



Length of head and body 67 to 72 mm. 



In size the males average a little larger than T. pacificus, but the 

 females are considerably smaller than in that species. Tail shorter 

 than in T. pacificus, less than one and one half head and body, vary- 

 ing from one and one tenth to one and one third head and body. This 

 species is not very close to any other of the archipelago. Its dis- 

 tinctive features are its coloration and the possession in the male 

 of a high dorsal crest. The absence of granules on the sides of the 

 neck ally it to T. bivittatus from which in other respects it is very 

 different. 



Occurs abundantly throughout the brushy portions of Bindloe Is- 

 land. Found sparingly along the coast on the barren lava fields. 



Its food appears to be wholly vegetable. All the stomachs examined 

 contained blossoms, seed capsules and berries. 



