Fred O'Connor banged into the room with a look-ma-no-cavities smile on his face.
2, nch.), growing forwards in the septum between the proboscis-cavity and the collar-cavities, and supported dorsally by the median mesentery of the collar, is the representative of the so-called notochord or stomochord of Balanoglossus; and if the view that this organ is really a notochord is well founded, it may be regarded as the homologue of the anterior end of the Vertebrate notochord.
The metasomatic cavities are divided by dorsal (fig.
2, 3, ov.) lie in the met asomatic cavities, and open to the exterior dorsally by short, highly pigmented oviducts (fig.
The ovary has many cavities with a large number of ovules attached to its walls, and is surmounted by a flat stigma of many radiating rows as in a poppy.
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