. oes mo. Fig. 2. Diagram of the right half of the fore-gut of Nebaliella extrema. A, region at which Fig. 3 A was cut; B, region at which Fig. 3 B was cut. anterior median projection; dorsal caecum; digestive glands; opening of the digestive glands; dorsal process; dorsal ridge; ' small ridge on the dorsal ridge; ^.^.j strong setae; ^.y., short stiff spines; i. intestine; lateral pad; m. mandible; mo. mouth; median pad; oes. oesophagus;/), long projections; ventral pyloric chamber with opening of the digestive glands; outUne of the l

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. oes mo. Fig. 2. Diagram of the right half of the fore-gut of Nebaliella extrema. A, region at which Fig. 3 A was cut; B, region at which Fig. 3 B was cut. anterior median projection; dorsal caecum; digestive glands; opening of the digestive glands; dorsal process; dorsal ridge; ' small ridge on the dorsal ridge; ^.^.j strong setae; ^.y., short stiff spines; i. intestine; lateral pad; m. mandible; mo. mouth; median pad; oes. oesophagus;/), long projections; ventral pyloric chamber with opening of the digestive glands; outUne of the lumen of the gut laterally. Ventral to the row of spines {) is a slight ridge on each lateral wall behind which is a strong contractor muscle. This ridge marks the division between the oesophagus and the stomach. There is no distinct division into cardiac and pyloric regions, but, posteriorly, where the spines ) and setae {) cease, the lateral walls approach one another more closely and their surfaces

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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti