302 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



Dimensio7is. 



mm. 



Total length 430 



Snout to vent - 382 



Vent to tip of tail 48 



Variation. — Few deviations from the specimens described above 

 are recorded. In the other specimen from the same locahty the pos- 

 terior nasal is in contact with second supralabial. Sometimes only 

 the fourth supralabial enters the eye. The number of ventrals varies 

 between 120 and 134, subcaudals between 29 and 46. Coloration is also 

 rather constant ; a median dorsal series of small black spots may be 

 present and the whole underside may be unspotted. 



Habitat. — Originally described from the Malay Arcliipelago this 

 species has since been found on the opposite mainland from Burma to 

 southern China. It occurs in Formosa, there being two specimens in 

 British Museum collected by R. Swinhoe, and two specimens were 

 collected by Tsunasuke Tada in 1897 at Taipa. 



List of specimens of Enhydris plumhea. 



■ Sci. Coll. Tokyo, no. 116. 



Boulenger, Cat., Ill, p. 5. 



b Description, p. 301; figs. 260-262. 

 ENHYDRIS BENNETTIIo (Gray). 



1842. Hypsirhina bennettii Gray, Zool. MiscelL, p. 67 (type-locality, China; type 

 in Brit. Mus.; Bennett, collector). — Guenther, Rept. Brit. India, 1864, 

 p. 283 (China).— W. L. Sclater, List Sn. Ind. Mus., 1891, p. 55 (Formosa). 



1885. Hypsirhina bennetti Ho-ETTGEn, Offenbach. Ver. Naturk. 24 and 25 Ber., p. 

 151 (China); Ber. Senckenberg. Naturf. Ges., 1894, p. 134 (Hainan); Kat. 

 Schl. Mus. Senckenberg., 1898, p. 88 (Hainan; Herz, collector). — Bou- 

 lenger, Cat. Sn. Brit. Mus., Ill, 1896, p. 8 (China). 



1854. Hypsirhiiia maculata Dumeril and Bibron, Erpet. Gen., VII, Pt. 2, p. 950 

 (type-locality, China; type in Paris Mus.; Eydoux, collector). 



1868. Hypsirhina enhydris var. maculata Jan, Icon. Ophid., li\T. 30, pi. iv, fig. 1. 



No specimen from Formosa being accessible to me, I describe one 

 which probably hails from the mainland opposite. 



Description.— Male; U.S.N.M. No. 22128; Hongkong, China?; Dale 

 and Jouy, collectors (figs. 263-265). Rostral somewhat broader 



o Named after G. Bennett, esq., who collected the type. 



