146 OKHAMANDAL MARINE ZOOLOGY REPORT— PART II 



PLATE II. 



Figs. lOri-lOc. Tetilla dactyloidea (Carter) (R.N. II. 2). Three specimens ; one cut in half length- 

 wise to show exhalant canal-sj'^stem. X 1 J. 

 Fig. 11. Reniera hornelli n. sp. (R.N. IV. 4). XlJ. 



„ 12. Reniera fibroreticulatg, n. sp. (R.N. II. 8). X 2. 



„ 13. Reniera semifibrosa n. sp. (R.N. XXXIII. 1.). Nat. size. 



,, 14a. Halichondria reticulata Baer (R.N. II. 6). Nat. size. 



„ 146. „ „ „ (R.N. II. 11). 



,, 15. Siphonochalina minor n. sp. (R.N. XXVI. 4). Nat. size. 



„ 16. Auletta lyrata var. glomerata Dendy (R.N. III. 3). X 2. 



„ 17. Auletta elon^ata var. fruticosa nov. (R.N. XXIII. 2). Nat. size. 



PLATE III. 



Fig. 18. Ciocalypta dicJiotoma n. sp. (R.N. IV. 21). X 2. 



19. Esperella plumosa (Carter) (R.N. XXXII. 2). Nat. size. 



20a. Desmacidon minor n. sp. (R.N. XX. 6 a). Flabellate specimen ; surface without oscula. 



Nat. size. 

 206. Desmacidon minor n. sp. (R.N. XX. 6 6). Digitate specimen ; osculum-bearing surface. 



Nat. size. 

 21. Guitarra indica n. sp. (R.N. IV. 5). Several specimens attached to the branching tube 



of a polychsete worm [Eunice, sp.) ; the uppermost (a) showing oscula. Nat. size. 

 22a. Psammochela elegans n. gen. et sp. (R.N. IV. 20). Specimen preserved in alcohol, with 



dermal membrane remaining, x 1^. 

 226. Psammochela elegans n. gen. et sp. (R.N. XVIII. 3). Specimen originally preserved in 



formalin ; the dermal membrane has been removed by maceration. X l^. 



PLATE IV. 



Fig. 23. Echinodictyum gorgonioides n. sp. (R.N. XXI. 1.). Nat. size. 

 „ 24a. Bubaris radiata n. sp. (R.N. III. 7 a). Upper surface, x 2. 

 ,, 246. ,, ,, ,, Lower surface, x 2. 



,, 25. Spirastrella vagabunda var. tubulodigitata Dendy (R.N. IV. 10). Nat. size. 

 „ 26a. Polymastia gemmipara n. sp. (R.N. IV. 7). Viewed from above. 6. buds ; p. pebble ; 



sp. c. internal spicular column. x 3. 

 „ 266. Polymastia gemmipara n. sp. (R.N. IV. 7). Viewed obliquely from below, showing interior. 



ch. coagulated masses of choanosomal tissue attached to inner surface of cortex. Other 



lettering as before. X 3. 

 „ 27. Megalopastas retiaria n. sp. (R.N. IV. 13). x 2. 



(All the figures on Plates II-IV are reproduced from drawings by Mr. T. P. Collings, with the 

 exception of Fig. 23. which is based on a photograph.) 



