798 SOME NEW AND RARE HYDROIDA IN THE AUSTRALIAN MUSEUM, 



Fig. 6-7. — Thuiaria suharticulata, hydrothecce, more enlarged. 



Fig. 8. — ,, „ ( = Sertularia fertilis, v. Lend.) with all 



the calycles except one broken away, x 25. (From Dr. von Len- 

 denfeld's type). 



Fig, 9-10.— T. sinuosa, n.sp. Port Molle. x 25. 



Plate XIX. 



Fig. 1-4. — Azt/goplon productum, B&le. Various forms of hydrothecae. x80. 



Fig. 5. — ,, „ adnate gonotheca. x 25. 



Fig. 6. — Plumtdaria alata, n.sp. x 80. 



Fig. 7-10.— „ „ xll2. 



Fig. 11, — ,, spinulosa, Bale, variety from Coogee. x 80. 



Fig. 12-13.— ,, „ gonothecse. x20. 



Fig. 14. — „ eompressa. Bale, small variety, Botany. x80. 



Fig, 15-17. — ,, aurita, n.sp. Botany, x 80. 



Fig. 18-19.— ,, ,, gonothecaj. x20. 



Plate XX. 



p. 12 I Plurmdaria campanula, Busk. 



^' ■ i ,, rubra, v. Lend. 



These figures apply equally to both species. 



(From Dr. von Lendenfeld's type of P. rubra), x 80. 



Fig. 3. — Plumularia campanula, female gonotheca. (From Dr. von Lenden- 

 feld's type P. Torresia. P. campanula, from Port Phillip Heads, 

 has exactly similar gonothecre). x 25. 



Fig. 4, — Plumularia campanula and P. rubra, male gonotheca. (From Dr. 

 von Lendenfeld's type P. rubra), x 25. 



Fig. 5, — Plumularia campanula and P. rubra, female gonotheca. (From 

 a N.S. Wales specimen of P. campanula), x 25. 



Fig, 6, — Plumularia campanula and P. rubra, male gonotheca. (From 

 same as last), x 25. 



Fig. 7. — Plumularia setaceoides, Bale. Lax variety, with thickened cell- 

 wall. X 80. 



Fig. 8. — Plumularia setaceoides. Small variety, much thickened, x 80. 



