. The American entomologist and botanist. s finally resolved into an oval massof granules occupying the gi-eater part of theinterior of the egg. Gradually the mass assumesthe appearance of a worm doubled upon itself,as seen in the magnified view (Fig. 120, o). Inabout four weeks the Gordius reaches maturity,and escapes from the egg totally different inappearance from the parent (Fig. 121, 2> q r). The newly developed Gordius is about thel-450th of an inch long. The body is constrictedjust posterior to the middle, so as to appeardivided into two portions, reminding one of thetwo divisions of
. The American entomologist and botanist. s finally resolved into an oval massof granules occupying the gi-eater part of theinterior of the egg. Gradually the mass assumesthe appearance of a worm doubled upon itself,as seen in the magnified view (Fig. 120, o). Inabout four weeks the Gordius reaches maturity,and escapes from the egg totally different inappearance from the parent (Fig. 121, 2> q r). The newly developed Gordius is about thel-450th of an inch long. The body is constrictedjust posterior to the middle, so as to appeardivided into two portions, reminding one of thetwo divisions of the body in spiders. The an- terior thicker portion of the body is cylindrical,distinctly annulated, and contains a complexapparatus which the animal is capable of pro-truding and withdrawing. The posterior part ofthe body is cylindrical, annulated, and roundedat the extremity, which is furnished with a pairof minute hooks. The interior exhibits a faintlygranular structure, including two large, clear,globular bodies. [Fig. 121.] ,^, r n. The young Gordius appears not to be able toswim about, but lies at the bottom of the vesselcontaining it, slowly progressing through thealternate protrusion, refiection and retractionof the oral apparatus, and occasionally swingingthe hinder part of the body from side to side. The oral apparatus consists of a collar, withtwo circles of hooks, six in each, and a proboscis-like style. In the movements of this apparatus,the ends of six hooks are seen to protrude fromthe centre of the head (Fig. 121, p). Thesecontinue to project and diverge more and more,and then become reflected. As they turn back-ward the ends of the second circle of hooks areobserved protruding in the same manner, andthen follows the style (Fig. 121, q). When thelatter is fully protruded, the first circle of hooksis seen at the margin of a collar deeply reflectedat the side of the body, while the second circleof hooks is reflected from the margin of thehead (Fig. 121, r).. In a
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Keywords: ., bookcen, bookdecade1870, booksubjectbotany, booksubjectentomology
