172 COLUBRID. 
Subfam. 1. ACROCHORDINAE 
Hydrophide, part., Bote, Isis, 1827, p. 510. 
py se, part. part, (Achrochordina, Xenodermina), Gray, Cat. Sn. p. 35, 
Gcrerhosdinee, Duméril, Mém, Ac. Sc, xxiii. p, 485, 1853; Du- 
Acrochordidee, Jan, Elenco sist. 106, “er 
Acrochordidw, Cope, Proc. Ac. Pi 
Acrochordidss, Giinther, Rept. Brit. ha or p 3 2864. 
Notho opide, Cope, Proc. Ae. ’Philad. 1871, p. 202, 
méril & Bibron, Erp. Gén. vii. i. p. 100 1854. 
Acrochordidz, Nothopide, Cope, Proc. Amer. Plilos. Soc, xxiii, 
p. 484, 1886, 
Acrochordine, Boulenger, Faun. Ind., Rept. p. 354, 1890. 
Postfrontal bone produced over the supraorbital region. Maxil- 
lary and dentary bones armed with solid teeth along their whole 
length; palatines and pterygoids toothed. Hypapophyses developed 
throughout the vertebral column. Scales not or but slightly 
imbricate. 
South-eastern Asia and Central America. 
Skull of Chersydrus granulatus, 
Synopsis of the Genera. 
I. No ventral shields ; head covered with uniform granules. 
Body scarcely compressed .......... 1. Acrochordus, p. 173. 
Body and tail compressed, with a fold below. 
2. Chersydrus, p. 173. 
II. Ventral shields well developed ; head covered with uniform 
STANUIGE en vines Gs bee nee 3. Xenodermus, p. 175. 
III. Ventral shields well developed; head with symmetrical 
shields, 
Subcandals single ; prefrontal and ope shields present. 
4. Stoliczkaia, p. 175. 
Subcaudals in two rows ; no prefrontal or supraccular shields. 
_5. Nothopsis, p. 176. 
