Venoms; venomous animals and antivenomous serum-therapeutics . Fig. 13.—Arrangement op the Scales of the Head in one ofTHE Non-poisonous Coluhrida, (Ptijas mucosiis). (After Sir Joseph Fayrer.) a, Rostral scale; b, anterior frontals; b, posterior frontals ; c, vertical; d, occipi-tals; E, supra-ciliaries ; f, temporals; l, m, nasals; n, loreals, or frenals ; o, anterioroculars, or prte-orbitals; p, posterior oculars, or post-orbitals; q, supra-labials; G,median infra-labial; h h, lateral infra-labials ; i k, mentals. The enormous extensile power of the mouth and oesophagusthus enables snakes t
Venoms; venomous animals and antivenomous serum-therapeutics . Fig. 13.—Arrangement op the Scales of the Head in one ofTHE Non-poisonous Coluhrida, (Ptijas mucosiis). (After Sir Joseph Fayrer.) a, Rostral scale; b, anterior frontals; b, posterior frontals ; c, vertical; d, occipi-tals; E, supra-ciliaries ; f, temporals; l, m, nasals; n, loreals, or frenals ; o, anterioroculars, or prte-orbitals; p, posterior oculars, or post-orbitals; q, supra-labials; G,median infra-labial; h h, lateral infra-labials ; i k, mentals. The enormous extensile power of the mouth and oesophagusthus enables snakes to swallow animals, the size of which is severaltimes in excess of their own diameter. Deglutition is slow and painful, but the gastric and intestinaljuices are so speedy m action, that the digestion of the most GENEIiAL CLASSIFICATION OF POISONOUS SNAKES 15 resistant substances rapidly takes place. The very bones are dis-solved, and the faeces, which are voided some days later, containonly a few osseous remains and a felt-like material composed ofhair or f
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