86 THE CROCODILES AND LIZARDS OF BORNE(^ 



One specimen measures three feet nine inches. 

 Sarawak {Boidenger); Baram River (C. 7/o5g); Penkalan 

 Ampat {G D. Raviland).; Kuching and Matang {E. Bartlett). 



Jf5. — Varaaus salvator, Boulen. Cat. Lizards, vol. ii, p. 314, 

 1885. S. M. 

 Not very common in the Kuching- district. 1 have not met 

 with very large specimens here ; the largest we have are from 

 Baram. Length 6 feet 8 inches ; is the largest in the collec- 

 tion. 



Borneo (DUhvyn); Sarawak (ZT. Low, Doria and Beccari) ; 

 Sadong (G^. D. Raviland)', Baram (C. Hose); Mount Dulit (C. 

 Hose) ; Kuching and Santubong {E. Bartlett). 



46. — Tachydromiis sexHneatus, Boulen. Cat. Lizards, vol. iii, 



p. 4, 1887. S. M. 



This extraordinary and beautiful lizard is rather abundant 



in and about Kuching, frequenting grassy lanes and fields, or 



grassy gardens. It attains a length of 14 inches, the tail being 



more than 5 times the length of the body. 



Sarawak {Doria, Beccari and H. Low) ; Borneo {E. Belcher); 

 Matang (Boulenger) ; Matang and Kuching (E. Bartlett). 



On the variation of the colours in the genera 



Mabuia and Lygosoma, with descriptions 



of new species. 



During my residence here, I have had an opportunity of 

 examining a very large series of nearly all the species of lizards 

 found in Borneo, but Mabuia and Lygosoma being the most abun- 

 dant, I am able to give more details of them, than of the other 

 genera at present. 



To make sure that my observations on the species are 

 correct with regard to the markings and coloration, I have 

 examined the various individuals for the purpose of determining 

 the sex, and I think that these are most important points in as- 

 certaining which assume the various colours during the breeding 

 time (which appears very precarioLis) and in doing so I have found 

 a variety of intermediate stages of markings and colours which 



