194 Mr. H. J. Carter on the 



Group 2. Palmata. 

 Halichondria palmata, Johnst. op. cit. p. 92, pi. ii. 



Group 3. Reptata. 

 Halichondria simulans, Johnst. ib. p. 100, pi. viii. 



Group 4. Spinifera. 

 For species see Part III. 



Family 2. Cavochalinida. 



Group 5. TuBULODIGITATA. 



For species see Part III. 



Group G. Aculeata. 



Tuba, Duchassaing de Fonb. et Michelotti, op. cit. 1864, p. 44,= Siphono- 



chalina, Sdt. 1868, Spong. Kiiste v. Algier, p. 7. 

 Tuba sororia, D. et M. op. cit. pi. viii. fig. 1. 

 T. digitalis, D. et M. ib. fig. 2. 

 T. armigera, D. et M. ib. fig. 3. 

 (These are good illustrations. Fig. 2 appears to have been affected by 



a parasitic polype, to which these sponges are very liable.) 

 fSpongia cancellata, Esper, 1794, Taf. vi. 

 ?S. muricata, Esper, ib. Taf. vii. 

 ?S. acideata, Linn., and S. villosa, Pallas, Esper, ib. Taf. vii. a. 



Group 7. Subaculeata. 



Tuba, D. et M. op. cit. p. 44. 



?T. tortolensis and T. longissima, D. et M. ib. pi. ix. figs. 2 & 3. 



Group 8. Ciliata. 



Tuba, D. et M. op. cit. p. 44. 

 T. plicifera, D. et M. ib. pi. x. fig. 2. 

 Spongia compressa, Esper. Taf. lv. 

 For other species see Part III. 



Group 9. Bivalvata. 



? Spongia agaricina, Esper, Taf. lix. 

 For other species see Part III. 



Group 10. Complanata. 

 For species see Part III. 



Group 11. Plicata. 

 For species see Part III. 



Family 3. Aceevochalinida, 



Group 12. Solida. 

 For species see Part III. 



