376 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



Cliina and Indo-China may not be grouped to better advantage and 

 more consonant with their geographical distribution, questions I am 

 unable to solve at present on account of lack of material. 



The two species which are found within our territory may be distin- 

 guished as follows: 



a' Head wide; the width of parietals together more than half the distance from tip of 

 fenout to their posterior end ; suture of frontal with supraocular shorter than with 

 prefrontal; a yellowish, more or less interrupted nuchal collar; ventrals uniform 

 pale C. berezowskii, p. 376. 



a- Head narrow; the width of the parietals together equals one-half their distance from 

 tip of snout to their posterior end; suture of frontal with supraocular longer than 

 with prefrontal; no collar; ventralsstrongly spotted with black. 



C. pfeferi, p. 378. 



CALAMARIA BEREZOWSKII a Guenther. 



1896. Calamaria berezowskii Guenther, Annuaire Mvis. Zool. St. Petersbourg, I, 

 p. 205, pi. I, fig. A (type-locality, Luu-ngan-fu, Prov. Sze-chuen, China; 

 types in Mus. St. Petersb.; Berezowski, collector). 



A specimen of a Calamaria which seems to belong to this species, 

 collected by Mr. Tsunasuke Tada at Taipa, Formosa, was accidentally 

 omitted from my account of the collection made by him,^ and is here 

 introduced into the Formosan fauna for the first time. 



There is nothing in Doctor Guenther's description or figures of 0. 

 herezowskii by which I can separate this specimen from it. One would 

 naturally expect the Formosa specimen to agree mth C. septentrionalis 

 which occurs from Hongkong, on the mainland opposite, to Cliusan in 

 the north and to the mountains north of Kiukiang on the Yangtse 

 River, in the interior, but this form is described as having the rostral 

 scarcely visible from above and the tip of tail rounded. Our speci- 

 men has' the same wide frontal as C. herezowskii, which according to 

 Guenther is the character distinguishing it from 0. siatnensis. The 

 latter has been taken as far north as Canton. 



Curiously enough, the Formosa specimen shows no special inclina- 

 tion towards C. pfefferi from the Riu Kius, and it is quite likely that 

 a form of the latter type may eventually turn up in Formosa also. 



Description. — Adult male; Science College Museum, Tokyo, No. 12; 

 Taipa, Formosa; September, 1897; T. Tada, collector (fig. 312). 

 Rostral high as broad, the portion visible from above more than half 

 as long as suture between prefrontals; no internasals; prefrontals 

 slightly smaller than frontal, in contact with fii'st and second supra- 

 labials; frontal slightly longer than broad, the width equaling its dis- 

 tance from tip of snout and the interparietal suture, about thi-ee times 



o Named after Mr. M. Berezowski, the Russian explorer, who in 1892-1894 traveled 

 in the Chinese provinces of Kansu and Sze-chuen. During this journey he collected 

 the types of this species. 



b Journ. Sci. Coll. Tokyo, XII, Pt. 3, 1898, pp. 215-225. 



