Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 °0 00 o o o o st st Firs. 397.—Mygale from the ventral side, part of the skin is turned aside (regue animal). E, Chelicera; Bg, thoracic ganglionic mass; P, P', °00° oooo • C O o o 000° d FIG. 399. — Arrange- FIG. 400.— Alimentary canal ment of the eyes in of Mi/gale fregne animal). G, Cerebral ganglion; Ma, cliverticula of stomach; L, hepatic ducts ; N, Mal- pighian vessels; N, rec- tum. different spiders (after Lebert). a, Eprira ; //, Tegfimrin ; c, Doloiitriln; <1, Sal- ticns.
Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 °0 00 o o o o st st Firs. 397.—Mygale from the ventral side, part of the skin is turned aside (regue animal). E, Chelicera; Bg, thoracic ganglionic mass; P, P', °00° oooo • C O o o 000° d FIG. 399. — Arrange- FIG. 400.— Alimentary canal ment of the eyes in of Mi/gale fregne animal). G, Cerebral ganglion; Ma, cliverticula of stomach; L, hepatic ducts ; N, Mal- pighian vessels; N, rec- tum. different spiders (after Lebert). a, Eprira ; //, Tegfimrin ; c, Doloiitriln; <1, Sal- ticns. The alimentary canal (tig. 400) lungs; F, lamella? of the lungs; bemns beneath the upper lip with an St, Sf, stigmata; Oc, ovary; Sir, „ , spinning papilla?. ascending pliaryngeal portion ot oesophagus, into which a saccular pha- ryngeal gland opens (salivary gland). The narrow oesophagus, before passing into the midgut or intestine, is dilated to form a suctorial stomach, which is furnished with powerful muscles arising from the dorsal part of the cephalo- thorax. The midgut is divided into FIG. 398.— Anterior part of the cepha- an anterior part, lying within the
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