340 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XX, 



Pseudoxenodon maerops. 



Two specimens, Nos. 18 and 14 of 1909. 



No. 13 of 1909 has a length of 30 ins. of which the tail is 6f ins. 

 Ventrals 173. Subcaudals 82 pairs. 



No. 14 of 1909.— Length 42| ins. Tail 9 ins. Ventrals 168. Subcaudals 

 81 pairs. 



I should here remark that the identification of these two specimens as well 

 as that of the following ones was worked out by Major Wall. The two 

 Pseudoxenodon specimens were originally included by me in my remarks on 

 the Tropidonoti, of which I wrote that I found the identification of the 

 species from the literature at my disposal so difficult that I decided to 

 leave it to others ; but the return of my manuscript with Major WalFs 

 remarks has enabled me to re-arrange the notes so as to accord with the 

 identification of the specimens and to add the names to the numbers 

 which were given alone before. 



Genus Tropidonotus . 



Two of the specimens I obtained, Nos. XXXV and XXXVI, I thought, 

 at first, must be some new kind, but afterwards thought they might belong 

 to the species modestus or the genus Polyodontophis . They appeared to me 

 sufficiently interesting to describe at length, but as they have now been 

 given specific rank and are described by Major Wall in a note which will 

 appear in this Journal, it will only be necessary to give a few details here 

 which are not mentioned by him, and to express my appreciation of the 

 honour accorded me. 



The two specimens were obtained from close to the station, and I have 

 since obtained a third. No. XXXV was taken on the 8th October 1908 

 and No. XXXVI on the 26th September 1908. 



There is no doubt that these two specimens (XXXV and XXXVI) con- 

 stitute a species which has hitherto never been described, and I venture to 

 name it after its discoverer. I think there can be no doubt that it should 

 be classified as a Tropidonotus, its resemblance to the species of this genus 

 being very striking except in one important particular, viz., the costal rows, 

 which number 17 and remain the same in the whole body length. 



Only one other of the Indian Tropidonoti has 17 costal rows, viz., punctlatus 

 which is also a Burmese snake. In this [punctlatus) the rows fall to 15 

 posteriorly, agreeing with the fall from 19 to 17 which occurs in all other 

 Tropidonoti. The subcaudal shields are more numerous in (yenningi) than 

 in any other Indian species, and in fact than in any other world species 

 excepting two from Madagascar and one from America, still I think it 

 should be considered Tropidonotus on the teeth. — F. W.] 



The other Tropidonoti sent were eleven specimens besides two immature 

 ones. These were supposed all to be either himalayanus or subminiatus, but 



