INNOCUOUS SERPENTS. 167 



white spots. S. 146 + 61. From Malabar to the Pe- 

 ninsula of Malacca ; also inhabits the Philippine Isles. 



12. Tropidonotus vittatus. Abounds in the inun- 

 dated parts of the Island of Java. Size and form nearly 

 as the preceding. Livid brown, relieved by three black 

 rays ; a ray of pale red on the last row of scales. S. 

 144-1-78. Of a slate-blue, bordered with black. 



13. Tropidonotus schIstosus. Above of a slate- 

 grey ; below yellowish ; size less than that of the T. 

 Natrix ; head short and conical, with aggregated plates ; 

 eyes small ; scales surmounted by a very strong caruia. 

 S. 150 -\- 80. Observed in Madagascar, Bengal, and the 

 Philippines. 



14. Tropidonotus bipunctatus. In many respects 

 resembles our T. Katrix, especially the variety of South- 

 em Europe ; but it has a more lengthened head ; the 

 eyes are smaller, the collar and the spot on the neck are 

 wanting. Above marked by irregular transverse spots. 

 Abdominal plates have a black spot. S. 141 + 67. Coun- 

 try, Martinique, Florida, Carolma, Mexico, &c. 



15. Tropidonotus Saurita. In colour and physiog- 

 nomy it presents a striking analogy with the preceding ; 

 but differs from it, as from all the others of the genus, by 

 its slender form, which approaches to that of the Herpe- 

 todryas ; head more elongated than ordinary. Ground 

 colour a deep brown, relieved by longitudinal rays oi 

 black. S. 166 + 111. Country, North America and Mar- 

 tinique. 



16. Tropidonotus fasciatus. Attains a very large 

 size. Head a little more than usually elongated ; scales 

 strongly carinated ; eye rather large ; nostrils narrow, 

 and almost vertical. S. 136 + 65. Greyish-brown, re- 

 lieved by deep, broad, round spots, which are often con- 

 fluent ; yellow below. Inhabits the same countries as 

 the two preceding. 



17. Tropidonotus viperinus, of the south of 

 Europe, is found in the Barbary States, and even as far 

 as the Caspian Sea. Head more lengthened than in the 

 other species ; very conical, and covered with more nar- 

 row plates. Above of a brownish-green, marked with 



