BY R. VON LENDENFELD, PH.D. 597 



192. TUBULARIA RALPHI. Bale. 



Bale (1) describes this specie, found in Hobson's Bay, from the 

 manuscript on this Tubularia bei Halley. 



193. TUBULARIA PYGM^A. Lamouroux. 



Lamouroux (2) describes this species from Amphorea dilatata of 

 Australia. 



194. TUBULARIA SPONGICOLA. nov. sp. 



Plate XXVI., fig. 50. 



From a creaping Hydrorhiza, which is immersed in hoi'ny 

 Sponges, short stems arise, the terminal ends of which are in the 

 surface of the Sponge. 



The Hydranths ai'e small and have the ordinary shape. The 

 distal set of tentacles consists of arms, which are about twice as 

 long as those which compose the proximal verticil. The tentacular 

 processes on which the Medusostyls bud are short and unblanched, 

 so ihat the Medusostyls are not numerous but of large size, as 

 long as the oral tentacles and possessing a serrated Umbrella 

 margin. The whole, therefore, appears similar to Tubularia bellis. 



Colour : Medusostyls and central part of Hydranth dark flesh- 

 colour, tentacles light rose colour. Hydrorhiza and Hydrocaulus 

 the Perisarc light brown, the coenosarc colorless. 



Size : Breadth of Hydranth (aboral tentacles) 4 mm. Height, 

 3 mm. Hydrocaulus, 2-3 cm. 



Octogenesis : Actinulse are born with 7-9 tentacles. 



Locality : Port Jackson in a depth of 10 metres. 



Season : Medusostyls, May. 



195. TUBULARIA GRACILIS, nov. sp. 



Plate XXVII., fig. 51-32. 



From a creeping Hydrorhiza Hydrocauli grow up which bear 



the Hydranth's terminally. The Perisarc is perfectly smooth 



throughout. The tentacles of the aboral verticil are about three 



(1) W. Bale. Catalogue of Australian Uydroid Zoophytes, p. 42. 



(2) Lamouroux. Histoire Naturelle des Coralliers flexibles, p. 232. 



