Vor. II] VAN DENBURGH—REPTILES—CHINA, JAPAN, FORMOSA 255 
Remarks.—This interesting new species differs from all 
other known species of the genus in having a greater number 
of gastrosteges. No Achalinus has heretofore been taken on 
any of the Loo Choo Islands, although species have been 
described from China, Formosa and Japan proper. I take 
pleasure in naming this snake for Dr. Franz Werner of 
Vienna. 
Calliophis swinhoei Van Denburgh 
Diagnosis.—Similar to Calliophis macclellandii but with 
more numerous gastrosteges and urosteges; the sum of the 
. gastrosteges and urosteges always more than 256. 
Type.—California Academy of Sciences, No. 14978. 
Suishako, Central Formosa, October 5, 1907. 
Description of the type—Eye about as long as distance from edge of 
lip. Rostral nearly as high as broad. Frontal as long as its distance from 
rostral, shorter than parietals. One pre- and two postoculars. Temporals 
1+1. Supralabials seven, third and fourth reaching the eye, sixth and 
seventh largest. Infralabials six, first pair meeting behind the mental,* 
first four in contact with anterior genial, third and fourth largest. 
Anterior genials slightly larger than posterior. Scales in thirteen rows. 
Gastrosteges two hundred and thirty. Anal divided. Urosteges thirty- 
four, divided. 
The color above is reddish brown, more grayish on the sides, crossed 
by thirty regular, narrow, light-edged black bars on the body and four 
on the tail. Many of the spaces between these bars show a small black 
spot on the third or fourth scale-row of each side. The black dorsal 
rings widen into blotches on the belly, and midway between these blotches 
are similar ventral blotches not connected with dorsal rings, but corre- 
sponding to the small lateral spots. The ground color of the belly is 
yellowish white. The snout, as far back as the anterior portions of the 
third supralabials, the preoculars, and the prefrontals, is gray. Behind 
this the head is black, crossed by a broad white band on the fifth, sixth, 
and seventh labials, the temporals, the posterior portions of the post- 
oculars, supraocular, and frontal, and all but the extreme tip of the 
parietal plates. 
IL Broken at (Roy inet bia) evens Ay Mee tn Mia aaa AN ae NMG 204 mm. 
STU ptecMUlbn nay dR NCOP AL Gs, VAAL a Oe ZO 
V ariation.—A second specimen in the Academy’s collection 
No. 18864, has 219 gastrosteges, 41 urosteges, 293 dark 
dorsal rings on the body and 6 on the tail. In other respects 
it agrees with the type. In all, five specimens from Formosa 
are known. All have scales in thirteen rows, seven supra- 
* This is not the case in the single Indian specimen at hand. 
