SYSTEMATIC. 
Spong. 31 
Family Spirastrellid^e. 
Hymedesmia hallezi Tops, redescribed; Sollas (58) p. 217. II. johnsoni 
Bwk., vide Hamacantha bowerbanki ( Esperellince ). 
Spirastrellci inconstans D., redescribed ; Sollas (58) pp. 217 & 218, pi. xiv, 
fig. 3. 
Family Suberitid^e. 
Poterion neptuni , figured; Goette (16), p. 98, fig. 79. 
Pseudosuberites cava, n. sp., from Malay Peninsula; Sollas (58) p. 217, 
pi. xiv, fig. 6. 
Suberites clomuncida, variation and “ metampy ” [vide n, a, i]; Bidder 
(4) pp. 380-382, vide etiam n, E, iii, b, and II, c, iv. S. laxosuberites, 
n. sp., from Pulau Bidang, Malay Peninsula; Sollas (58) p. 217, 
pi. xv, fig. 4. IS. sp., (nov.) incrusting a root tuft of Hyalonema ; 
Schulze (56) p. 38. 
Terpios fugax Duch. and Mich.; Sollas (58) p. 217. 
Family Placospongid^e. 
Placospongia Gray, defined: its affinities are not with Geodidce or any 
Tetractinellida, but with Monaxonida, and probably with Clionidce , 
p. 17; three species recognized:—(1) P. carinata (Bwk.) Rdl., inch 
P. intermedia Soil, and P. mixta Thiele, pp. 9-13 and pp. 2-6, pi. i, 
figg. 1-4, pi. ii, fig. 5, pi. iv, figg. 9-13, pi. v, figg. 1, 5, 7-9, 11; 
(2) P. melobesioides Gray, pp. 13 & 14, and pp. 2-6, pi. i, figg. 5-9, 
pi. ii, figg. 1-4 & 6, pi. iii, pi. iv, figg. 1-8, pi. v, figg. 2-4, 6, 10 & 12; 
(3) P. decorticans (Hanitsch) Thiele, inch P. grcefei Lend., p. 15; 
geographical and bathymetrical distribution of the species, p. 16; 
Yosmaer & Vernhout (66). 
(b) Order HALICHONDRINA. 
The suborder Halicliondrina divided into the four families Homorrhapidce , 
Heterorrhciphidce , Desmacidonidce, and Axinellidce ; Lundbeck (38) 
p. 4. 
Family Haplosclerim:. 
Haploscleridce Tops., the family not adopted; the genera contained in it 
divided among the families Homorrhaphidce R. & D. and Hetero- 
rrhaphidce R. & D., which are retained nearly in their original sense, 
the Tedaniince , however, being placed among the Desmacidonidce 
( = Poeciloscleridce, pars); Lundbeck (38). 
Sub-family Chalinijle. 
Chalinince , characters and limits of the subfamily; Lundbeck (38) 
pp. 4 & 5. 
Antherochalina dura Lend, the type is a specimen of Chalina globosa 
Lend., pp. 279, 287; A. frondosa Lend., description of type-specimens 
corrected, the species belongs to the genus Clathria (Ectyonince ); 
pp. 275, 279, 288; A. perforata Lend, description of type-specimens' 
