2. STEROLS: STRUCTURE AND DISTRIBUTION
127
TABLE III
STEROLS
Classification
Class Demospongia
Order Keratosa
Family Spongiidae
Spongia obliqua (89)
Hircinia variabilis (89)
Hippiospongia lachne (89)
Oligoceras hemorrhages (89)
Family Verongiinae
Verongia fistularis (89)
Verongia fulva (89)
Family Dysiidae
lanthella ardis (89)
Ianthella ianthella (89)
OF SPONGES
Unsaponifiable
fraction
of fat
(%)
34
20
40
35
25
24
23
42
Sterol of
unsaponifiable
fraction
(%)
4
10
6
3
71
44
73
72
Sterols
Acetate, m.p. 120°;
[a] D - 33°
A
5 -Sterols
A
5 -Sterols
A
5 -Sterols
Poriferasterol, clionasterol, cholesterol,
and others
Acetate, m.p. 116°;
[a] D - 40°
Cholesterol, clionasterol, poriferasterol
Cholesterol, clionaOrder Haposclerina
Family Spongillidae
Spongilla lacustris (6, 90)
Family Haliclonidae
Haliclona oculata (38, 83)
Haliclona longleyi (88)
Haliclona rubens (88)
Haliclona viridis (88)
Haliclona variabilis (88)
Haliclona permollis (89)
Haliclona coerulescens (88)
Family Desmacidonidae
Isodictya deichmannae (89)
Family Callyspongiidae
Callyspongia vaginalis (89)
sterol, poriferasterol
35
38
76
30
32
30
48
32
19
38
74
15
68
63
44
67
34
41
Poriferasterol, clionasterol
24-Methylenecholesterol
Haliclonasterol
Cholesterol and others
Cholesterol and others
Poriferasterol mainly
Poriferasterol, clionasterol
Poriferasterol, clionasterol
Acetate, m.p. 131°;
[a] D -43°
Poriferasterol, clionasterol