342 



ERNEST WAEREN. 



Length 0*48 mm., greatest breadth 0*22 mm. Diaphragm, 

 diameter 0'075 mm., aperture 0"035 mm. 



Hydranth. — About 13 tentacles. Nematocysts 4'1 ^ in 

 length, 1*2 ju in breadth. 



In the figure given by Bale all the pedicels are jointed, 

 whereas in the Natal liydroid the general rule is for the 

 pedicels to be quite unjointed. 



GrONOSOME. — Not found. The description given by Bale for 

 the Australian hydroid is as follows : " Gronangia about double 

 the length and diameter of the hydrotheca?, tapering down- 



Text-fig. 21. 



T^i//AH/A W3auro/JA7/S. 



Lafoea scandeiis Bale. X 40. 



Avards in the lower half, with more or less distinct transverse 

 undulations ; margin with three or four shallow emarginations ; 

 summit of the blastostyle forming a trumpet-shaped expan- 

 sion ; gonophores two, both on the same sides of the blasto- 

 style." 



(34) Lafoea magna, s'p. n. 



This hydroid Avas found on sea-weeds and on larger hydroids. 

 It occurred on a specimen of Thyroscyphus from Bird 

 Island, Algoa Bay, on A g 1 a o p h e n i a s e g m e n t a t a from Park 

 Rynie, also on sea-weeds from other parts of the Natal coast. 

 The trophosome has some resemblance to that of Lafoea 



