168 Notes on the Cheilostomatous Polyzoa, fyc. 



3. E. lichenoides, Milne Edwards. King's Island, Mr. 



Arnold. 



4. E. decussata, Milne Edwards. Queenscliff. 



II. Gen. Retepora, Imperato. 



1. R. phcenicea, Busk. King's Island, Mr. McGowan. 



2. R. monilifera, n. s., pi. III., figs. 6-9. 



Polyzoary rising from a narrow base, much convoluted, 

 consisting of a number of turbinated portions densely crowded 

 and confused. Cells decumbent, oval, ventricose; mouth 

 round, with usually a projection on the under lip sometimes 

 surmounted by an abortive avicularium; frequently an avicu- 

 larium at the side of the mouth; occasionally instead of the 

 mucro there is a slight notch on the lower lip. Ovicells nu- 

 merous, galeate ; a beaded rim occupying the upper edge of 

 the aperture, and extending as a club-shaped band along the 

 middle of the anterior surface for about two-thirds of its 

 length. 



King's Island, Mr. Arnold; Queenscliff. 



Explanation of Plates. 

 Plate II. 



Fig. 1. Diachoris spinigera, front. 

 ,,2. ,, ,, back. 



Fig. 3. Membranipora mamillaris. 

 Fig. 4. Lapralia excavata. 

 Fig. 5. Lepralia elegans. 

 Fig. 6. Lepralia lunata. 



Plate III. 



Figs. 1 and 2. Eschara chartacea. 

 Fig. 3. Eschara chartacea, edge view. 

 Fig. 4. Cellepora exigua, natural size. 



,,5. ,, ,, magnified. 



Fig. 6. Retepora monilifera, natural size. 



„ 7. >) >) magnified. 



„ 8. ,, ,, more highly magnified. 



„ 9. ,, ,, ovicells, do. 



