119 



the covering membrane, which belongs to the kenozooecium, is furnished with 

 numerous, pointed, scattered chitinous denticles, which thus correspond with those, 

 found on the other zooecla. The distal wall between the ooecium-bearing zooe- 

 cium and the kenozooecium is, as in F. iincinata, much bent at an angle and 

 furnished with a thickened margin. The kenozooecium has no operculum as it 

 has been figured by Busk. 



The colony has a similar structure as in the foregoing species, but the zooe- 

 eia are arranged in 6 longitudinal rows. A colony from Port Phillip Heads, Victoria 

 (Miss Jelly). 



According to information kindly sent me by Mr. K. Kirkpatrick I must also 

 refer F. atlantica Busk^ to this genus. 



Nellia Busk. 

 Farcimia, Pourtales. 



The zocecia without spinous processes; the distal wall has at its inner corner a 

 single rosette-plate; the ooecia are in almost their whole extent immersed into 

 the proximal part of the ordinary zooecium, and project only very little on the 

 surface of this; the avicularia are attached by a wide base or partially immer- 

 sed, with calcareous transverse bar; the colony jointed. 



N. appendiculata Hincks. 



Annals Nat. Hist. ser. 5, vol. XI, 1883, pag. 199, PI. VII, fig. 4. 



(PL I, figs. 11 a-11 b). 



The zocecia wide, rounded rhombic, with a membranous frontal area which 

 occupies almost the three-fourths of their length, and which, except for the pro- 

 jecting distal edge, is furnished with an immersed cryptocyst in the remaining 

 marginal part. Each distal wall is furnished with one, and the distal half of each 

 lateral wall with a single uniporous rosette-plate. 



The avicularia which occur in pairs for each zooecium are elongated, some- 

 what curved, tapering towards the proximal end and furnished with an arched 

 outer surface. They are placed in such a way that with their inner lateral edge 

 they border on the distal half of a lower zooecium and with their outer lateral 

 edge on the proximal half of a higher zooecium in a neighbouring row. At the 

 distal end there is an elongated frontal area perpendicular to the longitudinal 

 axis of the avicularian chamber. The triangular mandible, which is directed obli- 

 quely outwards and proximally and which is furnished with a lucida, has like 



1 8, p. 49. 



