. Elementary text-book of zoology. Zoology. 212 OPHIDIA. duct of a small poison gland. This sub-order includes the Agly- phodonta and the Opisthoglypha. Fam. TTropeltidae. With short pointed head, mouth not distensible, but with teeth in both jaws. TTi'Opeltis philippinus C'uv. Fam. Tortricidae. With small hardly discernible head and short conical tail. The teeth are small, and there are teeth on the palatine bones. They have a rudiment of the pelvis with small anal claws. *<-ytale Hmpr., South America ; Cijlindroplris ni/'a Gray. Java. Fam. Pythonidae. With long oval heads covered
. Elementary text-book of zoology. Zoology. 212 OPHIDIA. duct of a small poison gland. This sub-order includes the Agly- phodonta and the Opisthoglypha. Fam. TTropeltidae. With short pointed head, mouth not distensible, but with teeth in both jaws. TTi'Opeltis philippinus C'uv. Fam. Tortricidae. With small hardly discernible head and short conical tail. The teeth are small, and there are teeth on the palatine bones. They have a rudiment of the pelvis with small anal claws. *<-ytale Hmpr., South America ; Cijlindroplris ni/'a Gray. Java. Fam. Pythonidae. With long oval heads covered with scutes or scales, with rudiments of hind limbs which terminate with an anal claw at the sides of the cloaca. Eryx jnculvst Wagl., South Europe ; Bon constrictor Brazil; Python retictilatiis Schn., Sumatra. Fam. Colubridae. The head is not very broad, and is distinct: it is covered with scutes. The dentition is complete. The tail has a double row of scutes on the under surface. Cwtntclla nvstriucu Laur.^C". Icevis Lac., widely distributed in Europe; Lio2)ltix coljclla L. Brazil; Tropidonot'us natrir Gesn., Ringed snake. With obliquely keeled scutes. The species is widely distributed in Europe. Tr. tesselatux Meyr.; Coluber (Calopeltis) uEsciiliipii Jiarescens the snake of ^Esculapius. South Europe, Schlangenbad, Austria; Zatiu'nis nfrariri-Hx Shaw, South Europe; Herpetodrya* cfii'inutux Brazil. Fam. Dendrophidae. Tree snakes. Body thin and slender, head usually long, flat and distinct from the neck. The ventral scutes usually with two keels. Ventral caudal scutes in two rows. Drndropliix pu-ta Gm., East Indies; Alia-tnlln smaragdina Boie, West Aji'ica. Fam. Dryophidae. Body very long and slender, as is the head ; snout thin and sometimes prolonged into a flexible appendage. Dryophis argentea Cayenne. Fam. Psammophidae. Sand snakes. The posterior tooth of the upper jaw is grooved. Psamtnophis linratus Dum. Bibr., Mexico ; Ccelopi'lt'ix lai-
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
