4. PYxnoN, 81 



Morelia, ('faij, Zool. Miscell. p. 43; Duvi. v.y liibr. t. c. p. 383; 



Ciray, Cat. p. 85 ; Jan, I. c. p. 94. 

 I Fort alia, Gnii/, Zool. Miscell. p. 43, and Cat. p. 89. 

 Liusin, part., Jbum. ^- Bibr, t. c. p. 4^31 ; Gray, Cat. p. 91 ; Jan, I. c. 



p. 98. 

 Sinialia, Gray, Cat. p. 91. 



Aspidopylhon, A. li. Meyer, Man. Berl. Ac. 1874, p. 135. 

 Aspidoboa, Sauvaye, Bull. Hoc. Bhilom. (7) viii. 1884, p. 143. 

 Ilypaspistes, Douglas Oyilby, Rec. Austral. Mus. i. 1891, p. 193. 



I'rtemaxillary bone toothed. Anterior maxillary and mandi})ular 

 teeth very long, gradually decreasing in size. Head distinct from 

 neck ; end of snout covered with shields, upper surface of head 

 with symmetrical shields or small scales ; nostril directed xipwards 

 or supero-lateral,in a large semidivided nasal, which is separated from 

 its fellow by a pair of internasals ; rostral and anterior upper labials 

 with deep pits ; some of the lower labials also pitted. Eye moderate, 

 with vertical pupil. Body more or less compressed ; scales small, 

 smooth. Tail moderate or sliort, prehensile ; subcaudals all or 

 greater part in two rows. 



Tropical and South Africa ; South-eastern Asia ; rapua,sia ; Aus- 

 tralia. 



Si/nopsis of the Species. 



I. Subcaudals more than 50 pairs. 



A. 39 to GO scales across the thickest part of the body. 



1. Crown covered with scales or small irregular shields ; 2 or 



3 upper labials pitted 1. spilotes, p. 82. 



2. Crown with largo symmetrical shields ; 4 upper labials 



pitted. 



39 to 53 scales ; six or seven lower labials 



pitted 2. ametJii/stinus, p. 83. 



GO scales ; live lower labials pitted .... 3. timorcnsis., p. 85. 



B. Gl to 93 scales across the body. 



G9 to 79 scales ; 297-330 ventrals ; 78- 



102 caudals ; four upper labials pitted ; 



rostral as deep as broad 4. reticulatus, p. 85. 



81 to 93 scales ; 2G9-28() ventrals ; G3- 



77 caudals ; two upper labials pitted ; 



rostral as deep as broad 5. schce, p. 86. 



Gl to 75 scales ; 242-2G5 ventrals ; 60- 



72 caudals ; two upper labials pitted ; 



rostral broader than deep G. mohna,'^, p. 87. 



II. Su])caudals less tlian 50 pairs ; scales 53 to G3. 



253-2G7 ventrals ; 4(5-47 caudals ; five 



upper labials pitted 7. ancHetce, p. 88. 



VOL. I. G 



