. O-L I mm Fig. 29. Pionosyllis maxima, a. Head. b. Foot. c. Bristle. The palps are fused at their base and the prostomium (Fig. 29, a) is broader than long and rectangular. There are two pairs of almost contiguous eyes, one directly behind the other. The three tentacles are slightly longer than the prostomium: the median is inserted in the middle of the prostomium and the laterals further forward in front of the eyes. The prostomium is deeply notched behind and the notch is hidden by a flap-like prolongation of the buccal segment. There are two pairs of tentacular cirri, the dorsal almost twi

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. O-L I mm Fig. 29. Pionosyllis maxima, a. Head. b. Foot. c. Bristle. The palps are fused at their base and the prostomium (Fig. 29, a) is broader than long and rectangular. There are two pairs of almost contiguous eyes, one directly behind the other. The three tentacles are slightly longer than the prostomium: the median is inserted in the middle of the prostomium and the laterals further forward in front of the eyes. The prostomium is deeply notched behind and the notch is hidden by a flap-like prolongation of the buccal segment. There are two pairs of tentacular cirri, the dorsal almost twice the length of the ventral: the dorsal cirrus of the ist chaetiger is the longest appendage of the body.

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition