AUSTRALIAN I1YDROMEDUS.E. 43 



203. Sertularia unguiculata. Busk. (9) 76, (18) 394, (26), (93) 409. 



Thuiaria ambigua (127) 111. 



North coast of Australia (Torres Straits), East coast of Australia (Port 

 Jackson), South coast of Australia (from Robe, South Australia, to Western 

 Port), New Zealand. 



204. Sertularia geminata. Bale. (9) 78, (93) 409. 

 South coast of Australia (Port Phillip, Portland). 



205. Sertularia recta. Bale. (8) 23, (9) 79, (93) 410. 

 South coast of Australia (Brighton, South Australia). 



206. Sertularia flexilis. Thompson. (8) 103, (9) 78, (93) 409. 

 Australia. 



207. Sertularia pulchella. Thompson. (9) 71, (93) 408, (127) 108. 

 South coast of Australia (South Australia), Tasmania (George Town). 



208. Sertularia bidens. Bale. (9) 70, (93) 408. 

 South coast of Australia (Port Phillip). 



209. Sertularia maplestonii. Bale. (9) 70, (93) 408. 

 South coast of Australia (Portland). 



IV GROUP. HYDROTHECA, with several teeth. 

 I Division UNBRANCIIED SPECIES. 



210. Sertularia Grosse-dentata. Bale. (9) 94, (93) 412. 



Dynamena Grosse-dentata (71) 13. 

 Australia. 



211. Sertularia minuta. Bale. (8) 21, (9) 90, (93) 411. 

 South coast of Australia. 



212. Sertularia obliqua. De Lamarck. (9) 96, (82) 154, (93) 413. 



Dunamena obllqua (15) 484, (83) 179, (85) 290. 

 Australia. 



II Division IRREGULARLY BRANCHED SPECIES. 



213. Sertularia distans. Lamouroux. (9) 97, (83) 191, (85) 6*1, (93) 



414. 

 Australia. 



Ill Division DlCHOTOMOUSLY BRANCHED SPECIES. 



214. Sertularia barbata. Bale. (9) 96, (93) 413. 



Dynamena barbata (15) 289, (83) 178, (85) 289. 



Sertularia ciliata (82) 151. 

 Australia. 



215. Sertularia trispinosa. Loughtrey. (9) 69, (25) (93) 40S. 

 New Zealand. 



