SYSTEMATIC. 
Spong. 39 
Artemisina suberitoides Vosm.; Whiteaves (63) p. 17. 
Asbestopluma Norm., a subgenus of Cladorhiza , diagnosed with descrip¬ 
tions of the six species, A. cupressiformis (Crtr.) bihamatifera (Crtr.) 
pennatula (0. S.) biserialis R. & D., nordenskioldii (Frist.) and belgicce 
Tops.; Topsent (60) pp. 23-28. 
Batzella inops Tops. ; Topsent (59) p. 356. 
Cladorhiza abyssicola M. Sars; Whiteaves (63) p. 17. C. ( Asbestopluma ) 
belgicce, n. sp., from Antarctic; Topsent (56) pp. 3 & 4: full descrip¬ 
tion ; Topsent (60) pp. 23-28 and p. 6, pi. i, fig. 4, pi. iii, fig. 8. 
C. grandis Verrill and C. nordenskioldii Frist.; Whiteaves (63) p. 17. 
C. nordenskioldii Frist., and C. pennatula 0. S., vide Asbestopluma. 
Desmacella peachii (Bwk.), var. groenlandica Frist.; Whiteaves (63) 
p. 17. 
Desmacidon dendyi , n. sp., from Port Stephens, N.S.W.; Whitelegge 
(64) pp. 78 & 79, pi. x, fig. 9. D. ( Homceodictyu) palmata Johnst.; 
Whiteaves (63) p. 17. D. setifer, n. sp., from Antarctic; Topsent 
(56) pp. 2 & 3: full description; Topsent (60) p. 17 and p. 7, pi. i, 
fig. 3, pi. iii, fig. 6. 
Esperia seu Esperella , E. biserialis R. & D., E. cupressiformis Crtr., and 
var. bihamatifera Crtr., vide Asbestopluma. E. lingua (Bwk.) and E. 
modesta Lambe: Whiteaves (63) p. 16. 
Pseudohalichondria fibrosa , n. sp., from Lake Illawarra, N. S. W.; 
Whitelegge (64) pp. 78 & 117, pi. x, fig. 8. 
Stylotella columella (Bwk.) Tops.; Topsent (59) p. 356. 
Sub-family Dendorycina;. 
Dendoryx incrustans (Johnst.) Gray, includes Myxilla rosacea (Liebk.) 
0. S. ; Topsent (59) p. 353. D. incrustans var. australis , n var., from 
Antarctic; Topsent (56) p. 3: full description; Topsent (60) pp. 17 
& 18, pi. iii, fig. 11. 
Hastatus fragilis Frist, is a Lissodendoryx ; Topsent (60) p. 20. 
Iophon abnormalis R. & D., and I. chelifer , R. & S., their relations to 
I. radiatus ; Topsent (60) pp. 22 & 23 and p. 6. I. chelifer R. & D.; 
Whiteaves (63) p. 17. I. radiatus , n. sp., from Antarctic, a “pro¬ 
visional species”; Topsent (56) p. 3: full description; Topsent (60) 
pp. 21-23 and p. 6, pi. iii, fig. 13. 
Leptosia baculifera , n. sp., from La Calle, Coast of Algeria, pp. 354 & 
355; L. dujardini (Bwk.) Tops., p. 353 ; L. luciensis Tops., redescribed, 
includes L. exilis Tops., pp. 353 & 354: Topsent (59). 
Lissodendoryx Tops., characters and extent of the genus; Topsent (60) 
pp. 19 & 20 : vide Myxilla isoclictyalis (Crtr.). L. spongiosa (R. & D.) 
Topsent, var. astigmata , n. var., from Antarctic; Topsent (56) p. 3 : 
full description; Topsent (60) pp. 17 & 18 and pp. 5 & 6. 
Myxilla banyulensis Tops.; Topsent (59) p. 351. M. incrustans Johnst. ; 
Whiteaves (63) p. 18. M. isodictyalis (Crtr.), described ; “would fall 
into the genus Lissodendoryx Tops.” ; Whitelegge (64) pp. 79 & 80. 
M. lacunosa Lambe, a synonym of Lissodendoryx fragilis (Frist.); 
Topsent (60) p. 20. M. mollis R. & D., M. cribrigera R. & D., M. 
spongiosa R. & L>., and M. hastata R. & D., belong to the genus 
Lissodendoryx ; Topsent (60) p. 20. M. rosacea (Liebk.) 0. S., vide 
Dendoryx incrustans. 
Yvesia rosea Tops., spiculation compared with Y. elegans Tops.; Topsent 
( 59) pp. 355 & 356. 
