614 THE AUSTRALIAN HYDROMEDUSjE, 



62. GENUS AKACBNOPORA. Tenison- Woods. 

 The colony spreading like a small thin web over Corals. 



218. ARACHNOPORA ARGENTA. Tenison- Woods. 



This single species of the above Genus was described by Tenison 

 Woods (1), without mentioning the locality, probably Australia. 



16. FAMILY STYLASTERID^. Moseley. 



Alimentary Zooids with from 4 to 12 tentacles. Massive 

 Hydrosome containing tubes which possess pseudosepta formed by 

 the regular position of the tentacular Zooids. 



Dactylozooids devoid of tentacles, Gonangia contained in Am- 

 pullae. 



63. GENUS DISTICHOPORA. Lamarck. 



Pores sporadic, Dactylopores of one kind only. Pores simple in 

 a triple linear row at the latei'al edges of the branches of the 

 flabellum rarely on its faces. 



219. DISTICHOPORA VIOLACEA. Pallas. 



This species has been dredged North of Australia in several 

 places, and described by Pallas (2) and Tenison Woods (3.) 



220. DISTICHOPORA ROSEA. Kent. 



This species is found on the East Coast of Australia. It was 

 described by Kent (4.) 



221. DISTICHOPORA COCCINEA. Gray. 



(1) Tenison- Woods. On a new Genus of Milleporidaj. Proceedings of the 

 Linnean Society of New South Wales. Vol. III., \>. 8, 



(2) Pallas. Elenchus Zoophytorum. 



(3) Tenison Woods. On the Anatomy of Distiehopora. Transactions of 

 the Royal Society of New South Wales. Vol. XIII., p. 61. 



1) 8. Kent. On Corals, etc. Proceedings of the Zoological Society of 

 London, 1871, p. 281. 



