I'i \ i i in 



Figs. I 9. Caberea brevigaleata, ne^ species (p. 214). 



1 . Fragments, nai ural size. 



2. Ovicelled specimen, ■ 20, with ectocyst, showing the mode of articu- 



lation. The internal opesium is visible by transparencj through 



the very thin ectocyst. The ovicell opens between the two opesia. 

 :!. Specimen with ectocyst, • 20, showing the seta of the vibracula and 



the radicells grouping themselves in the zoarial axis. 

 I ). 51 17. Sulade Island. 

 I. Ovicelled segment, • 20, without ectocyst, showing the form <>f the 



opesia and avicularia. 



1). :>i 11. Jolo Light, Jolo. 

 ."). Segment with submedian interior opesium, ■ 20, lighted from the 



base so a- to show the septulae. 



6. Dorsal side of the same specimen as Figure 6, - '-'(), showing the 



arrangement of the vibracular grooves. 

 I). 5151 . Sirun Island. 



7. Portion of somewhal worn ovicelled segment, ■ 20, showing the dis- 



appearance of the avicularia. 

 s. Lateral side of Figure 7, ■ 20, showing the direction followed by the 

 radicular filters in order to group themselves longitudinally at the 

 middle of the segment. 

 '.i. Portion of the radicular axial bundle of Figures 7, S, X20. 

 I ). 51 17. Sulade [sland. 

 K) 13. Flabellaris crassum, new species p. 221). 



10. Anterior face of a bifurcated segment, ■ 20, showing the thick mural 

 rim. 



I ). 5579. I >arvel Bay, Borneo. 

 1 1 . Ovicelled specimen, 20, exhibiting also the hi furcation. 

 1 '_'. Dorsal of the -a me specimen a- Figure 11, 20, showing the mode of 

 bifurcal ion. 



I). 5580. Darvel Bay, Borneo. 



13. Anterior face of a segment, 20, with ZOOecia in which the gymno- 



c\ ^t is de\ eloped. 



I ). 557 I. Simaluc [sland. 

 (577) 



