. A Fig. 11. Emplectonema ophiocephala (Schmarda). A, sketch of head cleared in cedar oil; B, head cleared in cedar oil, dorso-lateral view to show the eyespots; C, armature, cleared in cedar oil. The rhynchocoel does not extend beyond the anterior third of the body. The pro- boscis is short and thin. Both rhynchocoel and proboscis are greatly restricted by the closely opposed ganglia. The armature appears to vary. Two accessory stylet reservoirs are always present, but the number of stylets differs. In two worms of nearly the same size taken at the same time, the accessory stylets numbered on
. A Fig. 11. Emplectonema ophiocephala (Schmarda). A, sketch of head cleared in cedar oil; B, head cleared in cedar oil, dorso-lateral view to show the eyespots; C, armature, cleared in cedar oil. The rhynchocoel does not extend beyond the anterior third of the body. The pro- boscis is short and thin. Both rhynchocoel and proboscis are greatly restricted by the closely opposed ganglia. The armature appears to vary. Two accessory stylet reservoirs are always present, but the number of stylets differs. In two worms of nearly the same size taken at the same time, the accessory stylets numbered one and two in one, and eight and nine in the other (Fig. 11C). A third specimen possessed two and three stylets. There is a stout main stylet mounted on a slightly hour-glass-shaped base shorter than the stylet itself. Vascular system. There are two lateral vessels in the head. They have not been traced at the ganglia, but the blood is responsible for the colour of the brain in the living animal, so the vessels are broken up into fine branches. Directly behind the brain there are two
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
