ART. 25 CHINESE AMPHIBIANS AND EEPTILES STEJNEGER 77 



and having seven snpralabials on one side and eight on the other. 

 It goes a long way to demonstrate the intergradation of the two 

 forms and justifies the use of the trinominal. It has the following 

 scale formula : Sc. 19 ; v. 149 ; a. 2 ; subc. 70 ; supral. 7-8. 



Genus TAPINOPHIS Boulenger 



1899. Tapinophis Boulenger, Proc. Zool. Soc. London, 1899, p. 164 (mono- 

 type, T. latouchii Boulenger). 



1909. CantonopJiis Werner, Jahresh. Ver. Naturk. AViirtteniberg, 1909, p. 57 

 (monotype, C. praefroritaJis Werner). 



TAPINOPHIS LATOUCHII Boulenger 



1899. Tapinophis latouchii Boulenger. Proc. Zool. Soc. London, 1899, p. 



164, pi. 18, figs. 1-lc (type locality, Knatun, Fiikien, Chna ; type in Brit. 



Miis. : J. D. La Tonche, collector). — W^erner, Abh. Bayer. Akad. Wiss., 



II Kl., vol. 22, pt. 2, 1903, p. 363 (Kuatun, Fnkien ) .— Wall, Proc. Zool. 



Soc. London, 1903, p. 87 (China). 

 1909. CantonopMs praefrontalis Werner, Jahresh. Ver. Naturk. Wiirttem- 



berg, 1909, p. 57 (type-locality. Canton, China; type in Mus. Stuttgart). 



A single specimen of this very rare and interesting snake (No. 

 65698) collected at Kuliang, Foochow, on July 25, 1919, has been 

 forwarded by Mr. Sowerby. The specimen is a male, 388 mm. long, 

 tail 80 mm., has 17 scale rows, 165 ventrals, 59 pairs of subcaudals. 

 The only essential point in which it differs from the type is the undi- 

 vided anal, though the ventral immediately in front of it is divided. 

 It is also slightly abnormal in having nine snpralabials on the right 

 side, with the sixtli labial only touching the eye, while on the left 

 side there are ten snpralabials, sixth and seventh entering eye; the 

 lower postocular is larger and the last three snpralabials longer; the 

 single anterior temporal is longer, followed by t^o smaller ones 

 only half as long. In most other respects it agrees perfectly with 

 Boulenger's original description and figure. The color is nearly uni- 

 form dark above, including the labials, and there is no black streak 

 along the side, but the outer scale row is nearly entirely light like the 

 \nKlerside, and the scales of the next row have a pale median area 

 and tip. The underside of the tail has no black median streak at the 

 base. 



Genus TRIRHINOPHOLIS Boulenger 



1893. TrirhinopJiolis Boulenger, Cat. Snakes Brit. Mus., vol. 1, p. 419 

 (monotype, T. nuchalis Boulenger). 



TRIRHINOPHOLIS STYANI Boulenger 



1899. Trirhinopholis styani Boulenger, Proc. Zool. Soc. London, 1899, p. 

 164, pi. 18, flga 2-2a (type locality, Kuatun, Fukien, China; cotypes in 

 Brit. Mus.; J. D. La Touche, collector). — Werner, Abh. Bayer. Akad. 

 Wiss., II KL, vol. 22, pt. 2, 1903, p.. 364 (Kuatun, Fukien).— Wall. 

 Proc. Zool. Soc. London, 1903, p. 88 (China). — Stanley, Journ. N. China 

 Asiat. Soc, vol. 45, 1914, p. 29 (Fukien; Mokanshan, Chekiang) ; vol. 

 46, 1915, p. xiii (Kuling). 



