Venoms : venomous animals and antivenomous serum-therapeutics / by A. Calmette; translated by Ernest E. Austen.

  • Calmette, A. (Albert), 1863-1933.
Date:
1908
Catalogue details

Licence: In copyright

Credit: Venoms : venomous animals and antivenomous serum-therapeutics / by A. Calmette; translated by Ernest E. Austen. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    (f) Atheris. Head very distinct from neck, covered with imbricate scales ; eyes large, with vertical pupils, usually separated from the labial shields by small scales; nostrils lateral. Body slightly compressed; scales keeled, with apical pits. Tail moderate, prehensile; sub- caudal scales in a single row. (1) A. cJilorechis.—No supraciliary horn-like scales; 9—11 scales from eye to eye ; 25—36 rows of scales in the middle of the body, strongly keeled ; 154—16-5 ventrals ; 53 —62 subcaudals. Colour green, uniform or with small yellow spots ; end of tail yellowish or blackish. Total length, 520 millimetres; tail 85. Habitat: West Africa, from Liberia to the Ogowai. (2) A. squamiger.—No supraciliary horn-like scales ; 7—8 scales from eye to eye ; 15—25 rows of scales in the middle of the body, strongly keeled ; 153—173 ventrals ; 51—95 subcaudals. Colour olive, uniform or with more or less regular, narrow yellow cross-bands, or yellow with green spots; belly pale olive, marbled with black or yellow, or uniform yellow. Total length, 550 millimetres ; tail 100. Habitat : West Africa, from the Cameroons to Angola. (3) A. ceratophorus.—Several erect, supraciliary horn-like scales; 9—10 scales from eye to eye ; 25 rows of scales in the middle of the body, strongly keeled ; 142 ventrals ; 55 subcaudals. Colour dark ohve, with black spots forming cross-bands; belly pale olive, speckled with black. Total length, 210 millimetres ; tail 65. Habitat: East Africa. (g) Atractaspis. (Fig. 42.) This genus is characterised by enormous poison-fangs, a few teeth on the palatines, and none on the pterygoids. The mandible, which is edentulous in front, has only two or three small teeth in