SYSTEMATIC. 
S pong. 17 
MONAXONIDA. 
Clavulina (11,23, 36). 
Lendenfeld (41) states that Papillclla ( Papillina ) suberea , O. Schmidt, 
is a free form of a boring Sponge, without microscleres, and probably 
identical with Cliona dissimilis , Ridley & Dendy. Papillella (Papillina) 
nigricans , O. Schmidt, has spirastrose microscleres, and is identical 
with Osculina polystomella, 0. Schmidt ; both are free forms of the 
boring Sponge described by 0. Schmidt as Vioa viridis , by Sollas as 
Cliona subulata, by Ridley as Vioa carter i, and by Carter as Cliona 
caribbea. All these names are therefore synonyms of Vioa viridis. 
Besides the genera Papillina and Osculina, 0. Schmidt, also the genus 
Rapbyrus , Bowerbank, is to be considered as the free form of a 
boring Sponge. 
Physcaphora , n. g., for P. decorticatum, n. sp. ; Hanitscii, P. Liverp. biol. 
Soc. ix, p. 214. 
Chondrosia reniformis, Nardo, redescribed ; Topsent, Arch. Zool. exp. iii, 
p. 568. 
CORNACUSPONGJiE. 
Marine Forms (15, 21, 61). 
Microtylotella, n. g , p. 25, for M. gUntheri , n. sp., p. 26 ; Dendy, P. Soc. 
Victoria, viii. 
Amphiastrella , n. g., Dendy, t. c. p. 27. 
Fusifer, n. g., p. 49, for P. fistulatus, n. sp. ; Dendy, t. c. 
Thymosia i n. g., p. 574, for T.guernei , n. sp.; Topsent, Arck. Zool. exp. iii. 
Dendy, P, Soc. Victoria, viii, describes the following new species : — 
Esperclla phillipensis , spongiosa ) p. 15, toxifer , p. 16, crassa , p. 17, vara , 
p. 18. 
Desmacidon australis , p. 19, intermedia , p. 20, arcuijibrosa , p. 21. 
Iotrocha acerata , p. 24. 
Forcepia cartcri , p. 25. 
Damir ia australiensis , p. 28. 
Myxilla victoriaua, p. 30. 
Clathria angulifera , p. 32, alata , p. 34, myxilloides , p. 35, imperfecta , p. 35. 
Plumohalichondria uncifer , p. 41, gravida, p. 42. 
Echinodictyum spongiosum, p. 45. 
Acarnus tenuis , p. 50. 
Ophlitaspongia gabrieli , p. 38, axinelloides , p. 39. 
Raspailia vestigifera , p. 47. 
Gellius pyrrhi, Hanitsch, P. Liverp. biol. Soc. ix, p. 211, n. sp. 
Raspailia formidabilis , Hanitscii, p. 212, t. c. n. sp. 
1895. [vol. xxxii.] f 7 
