24 DESCRIPTIVE CATALOGUE OF THE 



II. GROUP EETIOLOIDEA. 



Lap worth. 



No sicula. The coenosarc of the common canal develops a double row of 

 cells. Epidermis supported by chitinous fibres. 



VII. Sub-familia GLOSSOGRAPTINJE. Von Lendenfeld. 



GLOSSOGRAPTIDJE. Lapworth. 

 Both axes united in the middle of the body. 



VIII. Sub-familia GLADIO GRAFTING. Von Lendenfeld. 



GLADIOGRAPTIDJE. Lapworth. 

 Both axes separate. Perfect exo-skeleton of chitinous fibres. 



19. Genus EETIOLITES. Barrande. 



Hydrosome simple, tapering towards both ends. Axes straight or zig-zag 

 shaped, often rudimentary, cells rectangular. Both rows alternating. Inner 

 periderm layer a wide-meshed net. 



61. Retiolites Australia. McCoy. (94) 472, (105) 36. 

 Keilor, Victoria. 



VII. Familia PLUMULARIDJE. Hincks, 1868. 



Hydropolypinre forming colonies. The trophosomes possess one verticil of 

 filiform tentacles, and are enclosed by bilateral symmetrical hydro theca?, which 

 are adnate to the stem and branches of the colony. Many polyps are converted 

 into mouth and tentacleless defensive polyps. The sexual product are matured 

 exclusively in the polypostyles. 



20. Genus PLTJMULARIA. McCrady. 



The Hydrothecae cup-shaped ; the nematophores distributed along the stem 

 and branches. Polypostyles different in the two sexes, surrounded by a simple 

 gonangium. (54) 529, (65) II 636, (131) 172. 



I. Sub-genus. MOXOPYXIS. Kirchenpauer. 



Pimiately branched Plumularidpe ; every pinna bears a single hydranth 

 only. Monosyphonic. 



62. Plumularia Australis. Bale. (9) 143, (94) 475. 



Plumularia obliqua var. Australis. (72) 49. 

 South coast of Australia (Portland). 



63. Plumularia compressa. Bale. (8) 43, (9) 142, (94) 475. 

 South coast of Australia (Portland). 



64. Plumularia hyalina. Bale. (8) 41, (9) 141, (94) 475. 

 South coast of Australia (Port Phillip). 



65. Plumularia pulchella. Bale. (8) 42, (9) 140, (94) 475. 

 South coast of Australia (Port Phillip). 



