Dichromadora geophila - A diagram showing the structure of a worm
Zusammenfassung
Dichromadora geophila (de Man, 1876), Fig. 786. Spilophora canadensis. a, mouth opening; b, dorsal tooth; c, pharynx; d, base of the pharynx; e, esophagus; f, nerve cells; g, nerve-ring; h, excretory pore; i, valvular apparatus of the bulb; j, longitudinal row of cuticular markings characteristic of the genus; k, intestine; l, renette cell; m, nucleus of renette cell; n, cell accessory to the renette cell; 0, blind end of testicle; p, reversal of the striationsof thecuticula; q, vas deferens; r, spiculum; s, anus; t, caudal gland; u, spinneret (outlet of the caudal glands). (After Cobb.J)
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Tags
Datum
1918
Quelle
Wikimedia Commons
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Copyright-info
public domain