44 DESCRIPTIVE CATALOGUE OP THE 



IV Division. PINNATE SPECIES. 



216. Sertularia scandens. Lamouroux. (9) 97, (15) 481, (83) 189, (85) 



681, (93) 414. 



Sertidaria millefolium (82) 141. 

 Australia. 



217. Sertularia tridens. V. Lendenfeld. 



Sertularia tridentata (9) 97, (82) 151, (83) 187, (85) 680, (93) 414. 

 Australia. (East coast of Australia, Port Jackson). 



218. Sertularia crenata. Bale. (9) 86, (93) (411). 



219. Sertularia insignis. Thompson. (9) 86, (93) 410, (127) 109. 

 Tasmania (George Town). 



220. Sertularia acanthostoma. Bale. (8) 23, (9) 85, (93) 410. 

 South coast of Australia (South Australia). 



221. Sertularia tridentata. Busk. (9) 79, (18) 394, (93) 409. 

 South coast of Australia (Bass' Straits).! 



222. Sertularia elongata. Lamouroux. (9) 75, (15) 481, (83) 189, (85) 



681, (93) 409, (127) 107. 



Dynamena abictinoides (46). 

 Sertidaria abictinoides (25). 

 Sertularia lycopodium (82) 142. 



South coast of Australia (Bass' Straits, Port Phillip, South Australia), New 

 Zealand. 



223. Sertularia divaricata. De Lamarck. (82)143. 

 South coast of Australia (Bass' Straits). 



224. Sertularia fertilis. V. Lendenfeld. (93) 406. 



XII. Familia HYDRACTIMDJE. 



V. LENDENFELD. 

 = HYDRACTINIDJE. Clans? (23). 



Polyp-colonies producing free medusfe or medusostyles. The free medusa; 

 possess acelli at the base of the tentacles, and no atolithes. The tentacles are 

 scattered, and equally distributed. With simple mouth arms. The polyp- 

 colonies consist of a dense mass of entwined hydrorhiza, from which the 

 hydrocauli, simple, or slightly branched, grow forth. The alimentary polyps 

 possess one verticil of filiform tentacles. The medusae bud generally from 

 the hydrorhiza. Polypostyles. Besides the alimentary and generative polyps 

 we meet with defensive spiral polyps. (117) (131) 67. 



I. Sub-familia CYTJEINJE. V. Lendenfeld, 1884. 

 Producing free medusie (48), (54) 517, (65), II., 621. 



