218 



C0LTJBRIDJ5. 



band along the back : sides variegated black and white ; belly dirty 

 white, with a lateral series of black spots. 



Total length 328 millim. ; tail 106. 



Gold Coast. 



16. Tropidonotus swinhonis. 



Tropidouotus swinhonis, Oiinth. Ann. ^ Mag. N. H. (4) i. 1868, 

 p. 420, pi. xij. fig. ¥. 



Head narrow and elongate. Eye moderate. Rostral broader 

 than deep, just visible from above ; internasals a little broader than 

 long, shorter than the praefrontals ; frontal ouc9 and a half as long 

 as broad, as long as its distance from the end of the snout, shorter 

 than the parietals ; loreal as long as deep ; one prse- and three post- 

 oculars ; temporals 1 + 2; six upper labials, third and fourth 

 entering the eye, fifth very long ; four lower labials in contact with 

 the anterior chin-shields, which are shorter than the posterior. 

 Scales strongly keeled, of outer row faintly keeled, in 15 rows. 

 Ventrals 150; anal divided; subcaudals circa 50. Brown above, 

 anteriorly with irregnlar blackish spots ; occiput and nape reddish, 

 with a broad black collar ; a black spot below the eye, and an 

 oblique black band on the temporal region ; lower parts yellowish, 

 powdered with brown on the sides. 



Total length 580 millim. ; tail about 100. 



Formosa. 



a. $ (V. 150 ; C. ?). Formosa. R. Swinhoe, Esq. [0.]. (Type.) 



17. Tropidonotus miclialis. (Plate XIII. fig. 1.) 



Tropidonotus swinhonis, var., Giinth. Ann. §• Mag. N. H. (6) iv. 



1889, p. 221. 

 nuchalis, Boulmg. Ann. Sr Mag. N. H. (6) vii. 1891, p. 281. 



Head as in T. matrix. Eye moderate. Rostral broader than 

 deep, just visible from above ; internasals as long as broad or a 

 little broader, as long as the praefrontals ; frontal once and one 

 third to once and a half as long as broad, as long as or longer than 

 its distance from the end of the snout, a little shorter than the 

 parietals : loreal as long as deep, or deeper ; one prae- and two or 

 three postoculars ; temporals l-\-\ or 1-1-2; six upper labials, third 

 and fourth entering the eye, fifth very long ; four lower labials in 

 contact with the anterior chin-shields, which are shorter than the 

 posterior. Scales very feebly keeled, of outer row smooth, in 15 

 rows. A very distinct groove along the middle of the nape. 

 Ventrals 154-165 ; anal divided ; subcaudals 46-50. Olive above, 

 uniform or with small black spots ; an oblique black line below the 

 eye, and another between the two last labials ; lower parts uniform 

 black, or black in the middle and olive on the sides. 



Total length 640 millim. ; tail 120. 



China. 



a-(^. 2 (V. 154, 160, 161, Ichang, Upper Yang- A.E. Pratt,Esq. [C.l. 

 1G5 ; C. 50, 48, 47,46). tse-Kiang. (Types.) 



