1870.] Indian and Malayan Amphibia and Reptilia. 165 



small; the lower labials vary from 8-10, and 9 is the most usual 

 number, in the Tenasserim specimens at least. When the tail is 

 reproduced, the spines don't grow again. The colour is sometimes 

 uniform dark brown, sometimes pale with dark spots and broadish 

 streaks, which usually have a tendency to arrange themselves in 

 5 longitudinal rows on the body. The blackish eye-streak is ac- 

 companied above and below by a light grey or pale yellowish band. 

 In the brown varieties, the head above is generally spotted with 

 pale. The usual size of Tenasserim specimens is 4 and 5 inches, 

 of which the tail measures slightly more than one half. 



I have also obtained specimens of this species near Port Blair 

 (Mount Harriette) on the Andamans. 



About Calcutta this Gecko is generally seen inside houses, while 

 H. Coctcei is usually seen on the outer walls. There are, however, 

 certainly two quite distinct forms which appear to have been 

 regarded as Coctcei : The one is a small species rarely growing to a 

 greater length than 6 inches, it has some enlarged tubercles on the 

 back and the claw on the thumb is almost perfectly obsolete. The 

 other species is much larger, but has no enlarged tubercles, and the 

 claw on the tumb very distinct. I have seen specimens of this 

 last measuring fully 1 inches, it is during life greenish with distinct 

 transverse bands, lighter in front and dark posteriorly. I am now 

 engaged in collecting all the Geckotidce about Calcutta and hope to 

 be able to trace the differences indicated more clearly. There are 

 certainly 4, if not 5 , distinct species of Hemidactylus alone in and 

 on our houses ; and perhaps some other genera will be found re- 

 presented. They are extremely useful animals, for they destroy 

 a very large number of obnoxious and molesting insects in the 

 house, and should always be carefully protected against injury. 



22. Cyrtodactylus ruhidus, B 1 y t h, sp. 



Puellula rubida, B 1 y t h, Journ. Asiat. Soc. Bengal, 1860, xxix, p. 109. 



„ „ apud Giint he r, 1. cit. p. 1.18. 



„ j, Theobald, Cat. 1. cit. et auctormn.. 



Gecko tirjris, T y t 1 e r, Journ. Asiat. Soc, 186i, xxxiii, p. 546. 



Body rather depressed, with numerous small and larger tuber- 

 cles ; head large in front, covered with equal, somewhat squarish 



