DENDY— HOMOSCLEROPHORA AND ASTROTETRAXONIDA 271 



Plate 47. 



Fig. 1. Bhabdodragma conulosa (Kieschnick). R.N. Lxxviii. 1. 



la. Plagiotrisenes, x 60 ; 16. oxea, x60; 1 c. chiasters, x770; Id small oxeote, x 770 ; 

 1 e. microrhabds, x770; If. trichodragmata, x 770. 

 Fig. 2. Jaspis johnstonii (Schmidt). R.N. LXXVill. 11. 



2 a. Oxea, x 60 ; 2 a', stylote form, x 60 ; 2 6. microxea, x 770 ; 2 c. oxyasters, x 770. 

 Fig. 3. Geodia auroristella n. sp. R.N. Lxxxvi. 1. 



3 a. Orthotrisenes, x 60 ; 3 &. anatrisene, x 60 ; 3 c. oxeote, x 60 ; 3 c'. style, x 60 ; 3 c". strongy- 

 lote, X 60 ; Zd. sterraster, x 310 ; Zd' — Zd'". developmental stages of sterraster, x 310 ; 3 d"". portion 

 of surface of late developmental stage of sterraster, x 310 ; 3 e. smooth spheraster, x 770 ; 3/ spined 

 spheraster, x 770; Zg. minute spheraster or chiaster, x 770; 3 A. oxyaster, x 770. 



Fig. 4. Erylus lendenfeldi Sollas. R.N. CII. 2. 



4 a. Orthotrisene, x 60 ; 4 6. oxea, x 60 ; 4 c. aspidasters, x 310 ; 4 c' — 4 c'". developmental stages 

 of aspidaster, x310; 4 c"". marginal portion of surface of aspidaster, x770; 4d large oxyaster 

 X 770; 4e. small oxyasters, x 770; 4/. polyactinose oxyaster, x 770; 'ig. microrhabds, x 770. 



Fig. 5. Erylus proxiw.us n. sp. R.N. Lxxvii. 7. 



5 a. Short-shafted trisenes, x 60 ; 5 6. oxea, x 60 ; 5 6'. style, x 60 ; 5 b". strongylote, x 60 ; 

 5 c. aspidasters, x310; 5 c' — 5 c"". developmental stages of aspidaster, x310; 6 c"'". marginal 

 portion of surface of aspidaster, x 770 ; 5 d. chiasters, x 770 ; 5 e. microrhabds, x 770. 



Plate 48. 



Fig. 1. Donatia lyncurium auctorum. R.N. cxx. 2 c. 



la. Spherasters from cortex, x310; 16. spherasters from choanosome, x310; 1 c. chiasters 

 from cortex, x770; 1 c^. chiasters (oxyasters) from choanosome, x 770. 

 Fig. 2. Donatia japonica (Sollas). R.N. LVii. 10 b. 



2 a. Spheraster from cortex, x 310; 2 6. spherasters from choanosome, x 310; 2 c. tylasters from 

 cortex, X 770; 2d. tylasters from choanosome, x 770; 2e. strongylaster from choanosome, x 770. 



Fig. 8. Donatia ingalli (Bowerbank). R.N. cxiii. 1 B. 



3 a. Spherasters from cortex, x 310 ; 3 6. spherasters from choanosome, x 310 ; 3 c. tylasters from 

 cortex, X 770; 3d tylaster from choanosome, x 770; 'id', strongylasters from choanosome, x 770. 



Fig. 4. Donatia seychellensis (Wright). R.N. cxx. 2 A. 



4 a. Spherasters from cortex, x310; 4 6. spherasters from choanosome, x 310 ; 4 c. tylasters 

 from cortex, x 770 ; 4 d. oxyasters from choanosome, x 770 ; 4 d'. tylasters from choanosome, x 770. 



Fig. 5. Donatia stella-grandis n. sp. R.N. cvi. 5. 



5 a. Styli, x60; 5 a'. tylostyli, x60; 5 a". strongyle, x 60 ; 5 6. spherasters, x310; 5 c. cortical 

 chiasters, x 770; 5 c'. slender-rayed chiaster, x 770; bd. choanosomal chiasters, x 770. 



Fig. 6. Chondrilla australiensis Carter. R.N. xxxili. 3. 



6 a. Spheraster from cortex, x 550 ; 6 6. oxyasters from choanosome, x 550. 

 Fig. 7. Chondrilla mixta Schulze. R.N. ex. 4. 



7 a. Spheraster from cortex, x 550 ; 7 6. oxyasters from choanosome, x 550. 

 Fig. 8. Chondrilla sacciformis Carter. R.N. XL 4. 



8 a — 8 c. Spherasters, showing variation in shape of rays, x 550. (8 a and 8 6 are probably 

 developmental stages of 8 c.) 



