112 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.38. 



Family CROTALID.K. 



AGKISTRODON ACUTUS (Guenther). 



1888. Halysacutus Guenther, Ann. Ma-. Nat. Hist. (ri), vol. 1, 1888 (p. 171; 

 pi. L2), (type-locality, nits. w. of Kiukiang, China; types in Brit. Mus., 

 A. I".. Pratt, collector). — Aneistrodon acutm Bq'ulenger, Cat. Snakes 

 Brit. Mus., vol. 3, 1896, p. 524 (Ichang). — Aghistrodon acutus Namiye, 

 Zool. Mag., Tokyo, No. 236, June 15, 1908, p. 192, pi.— Denburgh, Proc. 

 California A.cad. Sci. (4), vol. 3, Dee. 20, 1909, p. 55 (Koshun and Shin- 

 chiku, Formosa i. 



This interesting addition to the Formosan fauna was made by 

 Namiye in 1908, and its occurrence in the island has since been 

 corroborated by the collection made for the California. Academy. 

 Occurring, as it docs, on the upper Yangtze Kiang and in the prov- 

 ince of Fokien, opposite Formosa, its capture in the latter adds 

 another fact to the many previous ones connecting its fauna with 

 thai of the Chinese mainland. 



TRIMERESURUS MUCROSQUAMATUS (Cantor). 



Eerpet. Japan, L907, p. 46' 



1870. Trimeresurus mucrosquamatus Swinhoe, Proc. Sue. Zool. London, L870, 

 ]>. ill, pi. 31. Barbour, Proc. New England Zool. Club, vol. 4, 1909, 

 ]>. 75 I Bankoro, Central Formosa i. 



No additional light has been thrown on the occurrence of this 

 species on the mainland, and the identity of the Formosan specimens 

 with the species described from the "hills" in Assam remains still in 

 obscurity. The specimen recorded by Barbour from Bankoro, in 

 central Formosa, has the unusual number of IS scales between the 

 supraoculars, the latter being extremely narrow. Otherwise it comes 

 within the limits <>!' variation recorded by me. 



TRIMERESURUS MONTICOLA Guenther. 



L853. I'arias maculata Gray, Ann. Mag. Nat. Eist. (2), vol. 12, Dec. 1853, p. 

 392 (type-locality, Sikkim; type in Brit. Mus.; Dr. .J. Hooker, collec- 

 tor), (nol Trimesurus maculatus Gray, 184 



L864. Trimeresurus monticola Guenther, Rep. Brit. India, p. 388, pi. 24, fig. 

 n (type-localities, Nepaul and Sikkim; types in Brit. Mus.; Bodgson 

 and Booker, collectors).- Barbour, Proc. Now England Zool. Club, 

 vol. i, Nov. 24, 1909, p. 71 (Mt. Arizan, Central Formosa). — Lachesis 

 monticola Boulenger, Cat. Snakes Brit. Mus., vol. 3, 1896, p. -M s 

 bet, Himalaya-, .Wain to Malay peninsula and Sumatra). 



1870. '.' Trimeresurus convictus Stoliczka, Journ. Asiatic Soc. Bengal, vol. 39, p. 

 224, pi. 12, figs. 1 L6 (type-locality, Penan 



Vnother Himalayan species added to the Formosan fauna. Bar- 

 bour in recording the fact remarks as follows: 



Berp. of Japan, L907, p. 180) wroteal the end of his remarks on T. ohna- 

 s thai ii" mar Illy "I" this species was known from Formosa. Be notes it > rela- 

 tionship to /'. monticola, and says "the latter or a related form may be expected to 





