276 PROCEEDINGS OF THE NATION I/. UUSEl I/. vol.38. 



IBr series extend out horizontally from the radials so that the arms 

 lie quite Hat as in certain comasterids, particularly in the genus 

 Comatula. 



Ten anus 60 to (>•"> mm. long, rather stout in the proximal third, 

 but becoming exceedingly slender (list ally. The distal intersyzygial 

 interval is three oblique muscular articulations. 



P, 11 mm. long, slender and flagellate, with thirty to thirty-two 

 segments, the first short, the next three or lour about as long as 

 broad, the following rapidly becoming elongated, and after three 

 or four more about twice as long as broad, or slightly longer; the 

 second and three following segments have the distal outer edges 

 strongly produced, overlapping, and serrate, but this feature dies 

 away as the segments become longer, so that most of them are- 

 smooth; the elongated segments have slightly expanded ends. P 2 

 5 mm. long, slightly less stout basal ly than P,, with sixteen to twenty 

 segments, of which the second, third, and fourth have their distal 

 outer edges strongly produced; P., about 5 mm. long, resembling 

 P.,, but with a stronger production of the distal outer edges of the 

 basal segments, and with this character persistent nearly to the 

 tip of the pinnule, and bearing a huge rounded genital gland extend- 

 ing from the third to the twelfth segment. The following pinnules 

 .ire similar to P 8 , but very slightly longer with slightly larger genital 

 glands; after P,„ the genital glands gradually decrease in size, dis- 

 appearing on P 16 . Distal pinnules exceedingly slender, about 4 

 mm. long. 



Type. In the collection of the Australian Museum, Sydney. New 

 South Wales. 



Cotypt ■ Cat. No. 24324 U.S.N.M. Both specimens are from Port 

 Jackson, New South Wales. 



