18 Spong. 
XVII. SPONGI^. 
[1904] 
family Ventriculitid^e. 
fCephalites longitudinalis : Hinde (19). — C. alternans, C. henettioe, C. 
hullatus, C. catinifer^ C. compressus^ C. guttatus, C. longitudinalis^ 
C. paradoxus, C. perforatus : Jukes-Browne & Hill (26) p. 505. 
■\ Polyplastidium racemosum, P. tuherosmn : Jukes-Browne & Hill (26) 
p. 508. 
i Rhizopoterion cervicorne : Jahn (25). 
■fSestrocladia furcatus : Jukes-Browne & Hill (26) p. 508. 
'\ Sporodoscinia capax, S. micrommata : Jukes-Browne & Hill (26) p. 508. 
t Ventriculites decurrens, V. impressus, V. alci/onoides, V. radiatus : Holmes 
(20). — V. alcyonoides, V. alternans, V. infundihuliformis, V. augusta- 
tus, V. convolutus, V. cribrosus, V. deciwrens, V. impressus, V. mam- 
millaris, V. tnoniliferous, V. radiatus, V. quincuncialis (see Coscino- 
pora), V. simplex (see Porochonia) : Jukes-Browne & Hill (26) 
p. 509. — V. marginatus, V. radiatus, V. odontostoma : Jahn (25). — 
V. radiatus, V. cribrosus, V. impressus, V. infundibuliformis, F. con- 
volutus, F. decurrens : Bowe (41). 
D. DEMOSPONGIiE. 
(i) TETRAXONIDA. 
(a) Order CARNOSA. 
Sub-order MICROTRI^NOSA. 
Corticella geodioides (Carter) T., redescribed : Topsent (50) pp. 77-79. 
Thrombus abyssi (Carter) S., n. var. niger, described : Topsent (50) 
pp. 100-102. 
Sub-order MICROSOLEROPHORA. 
Family Plakinidj^:. 
Placinastrella oxeata, n. sp., described: Topsent (50) pp. 102, 103. 
(b) Order TETRACTINELLIDA. 
(1) Sub-order CHORISTIDA. 
Tribe SIGMATOPHORA. 
Family TETiLLiDJi:. 
Chrotella amphiacantha, n. sp., described : Topsent (50) pp. 96, 97. 
Craniella cranium (Mliller) S., redescribed, pp. 99, 100 ; C. disigma, n. sp., 
described : Topsent (50) p. 100. 
Tetilla longipilis, n. sp., described : Topsent (50) pp. 97-99. 
Tribe ASTROPHORA. 
Family GEODiDJi:. 
Cydonium gigas, nutrition in : Cotte (6). 
Erylus mwwiulifer T., redescribed, pp. 71, 72 ; E. granidai'is, n. sp., 
described, pp. 72, 73; E. mammillaris (Schmidt) G., redescribed, 
pp. 73-75 ; E. chavesi, n. sp., described, p. 75 : Topsent (50). 
