9O APODA CHAP. 



B. Eyes below the cranial bones. Quadrato-jugal in contact with 

 parietal. 



Tentacle near the nostril. 



Gymnophis, 4 species, South America. 

 Herpele, 2 species, Panama and Gaboon. 

 II. Without scales. 



A. Eyes distinct, or concealed under the skin. 

 a. Two series of teeth in the lower jaw. 



a. Quadrato-jugal in contact with parietal. 



Tentacle behind nostril ; end of body laterally compressed. 



Typhlonectes, 3 species, America, p. 93. 

 /?. Quadrato-jugal separated from parietal. 

 Tentacle between eye and nostril. 



CJithonerpeton, 2 species, America. 

 6. One series of teeth. 



a. Quadrato-jugal and parietal in contact ; tentacle in front of the 



eye .... Siphonops, 4 species, America. 

 /3. Quadrato-jugal separated from parietal. 



Bdellophis, 1 species, East Africa. 



B. Eyes below the cranial bones. 



a. Two series of teeth. Quadrato-jugal and parietal in contact; 

 tentacle behind and below nostril. 



Gegenophis, 1 species, India. 



6. One series of teeth. Quadrato-jugal separated from parietal. 

 Scolecomorphus, 1 species, East Africa. 

 Boulengerula, 1 species, East Africa. 



Ichthyophis glutinosa extends from the slopes of the Hima- 

 layas to Ceylon, the Malay islands, and into Siam. A second 

 species, /. monochrous, occurs in Malabar, Malacca, Borneo, and 

 Java. /. glutinosa reaches about one foot in length, with a 

 greatest thickness of a little more than half an inch. The 

 general colour is dark brown or bluish black, with a yellow band 

 along each side of the body. 



This species has been studied extensively by the Sarasins. 1 

 It breeds in Ceylon after the spring monsoon. The ovarian egg 

 is oval, measuring 9 by 6 mm. The yolk is yellow ; the 

 blastoderm lies towards one of the poles. The strong vitelline 

 membrane becomes surrounded in the oviduct by a dense 

 albuminous membrane, which forms twisted chalazae, just like 

 those of birds' eggs, and by these two cords the eggs are strung 

 together. Around all this lies another mantle of albumen. 

 The female digs a hole close to the surface in moist ground near 



1 P. and F. Sarasin, " Zur Entwicklungsgeschichte der ceylonesischen Blind- 

 wiihle, Ichthyophis glutinosa." Ergebnisse naturwiss. Forschungen auf Ceylon, 

 1887-1890, vol. ii. 



