234 



between the sponge fauna of South Africa and Austr;; a. The 

 following is a list of the species : — 



Order MONAXONIDA 

 Sub-Order HADROMERINA. 

 Section I. CLAVULIDA. 



Family PlacospongidsB. 



PlacospoQgia labyrinthioa, sp. n. 



Family Spirastrellidas. 



Latrunculia natalensis, sp. n. 



Kalaatrella vasiformis, gen. et sp. n. 



Kalastrella vasiformis, var. minor, var. nov. 



Section II. ACICULIDA. 

 Family Coppatiidas. 



Coppatias baculifer, sp. n. 



Family Tethyidae. 



Tethya magna, sp. n. 

 Trachya nuda, sp. n. 



Sub-Order HALICHONDRINA. 



Family Axinellidae. 



Hymeniacidon caliculatum, sp. n. 



Hymeniacidon caliculatum, var. osculatum, var. nov. 



Phakellia microxephora, sp. n. 



TragOBia infundibuliformis (J(ihiiston), var natalensis, var. nov. 



Axinella, sp. 



Axinella, sp. 



Syringella gorgonioides, sp. n. 



Axinyssa tethyoides, sp. n. 



Sigmaxinella arborea, sp. n. 



Sigmaxinella incrustans, sp. n. 



Higginsia bidentifera (Ridley and Dendy). 



Sollasella hystrix (Topsent). 



