28 Spong. 
XVII. SPONGIJE. 
Sub-family Gelliodinas. 
Oelliodes hamata n. sp., Ternate, pp. 942 & 943, pi. xxviii, tig. 7 ; G. 
poro&a n. sp., Ternate, p. 943, pi. xxviii, fig. 8: Thiele (50). 
Sub-family Phixeodictyin./E. 
Oceanapia Norm, diagnosed; 0. robusta Bwk. : Arnesen (3) p. 8. 
Phloeoaictyon eumitum [errore eumatum\ n. sp. from Cone Point, 
Natal, 34 fathoms; Kirkpatrick (26) pp. 253 & 254, pi. v, fig. 18, 
pi. vi, figg. 19a, b. P. jistulosum (Bwk.), described ; Thiele (50) 
pp. 937 & 938. 
Rhizochalina crassispicula Kieschnick, a doubtful species; Thiele (50) 
p. 936. 
Family Poeciloscleridas. 
Sub-family Espeiiellin^e. 
Biemna Gray, discussion of the genus, p. 943 ; B. humilis n. sp. p. 944, 
pi. xxviii, fig. 10 ; B. tnrhaphis (Tops.), pp. 944 & 945 ; B., sp., p. 945, 
all three from Ternate: Thiele (50). B. korenii for Desmacidon 
korenii O. S., redescribed; Theile (51) pp. 380 & 381, pi. xxi, fig. 10. 
Chondrocladia ramosa Kieschnick, a doubtful species; Thiele (50) 
p. 947. 
Cladorhiza M. Sars, diagnosed ; G. abyssicola M. Sars, described : Arnesen 
(3) p. 12. C. pennatula O. S., additions to the description of; Thiele 
(51) p. 385. 
Desmacidon Bwk., diagnosed; Arnesen (3) p. 13. D. anceps O. S., a 
non-existent species, founded on types belonging to several genera 
and species; Thiele (51) pp. 388-390. D. clavellata n. sp., Bergen, 
100-300 m. ; Arnesen (3) pp. 13 & 14, pi. ii, fig. 2, pi. iv, fig. 4. D. 
emphysema O. S., vide Melonanchora. D. filiferum O. S. and D. crux 
0. S., vide Hymedesmia. D. grande R. & D. ; Kirkpatrick (26) 
p. 252. D. korenii O. S., vide Biemna ; D. neptuni 0. S., vide 
Plumohalichondria. D. physa 0. S., vide Histoderma. D. ramosum 
R. & D. ; Kirkpatrick (26) p. 252. 
Esperella Vosm. sen Esperia 0. S., diagnosed; Arnesen (3) p. 9: see 
also Mycale. E. cegagropila (Johnst.), physiology; Cotte (9). E. 
fabricans O. S., vide Hamigera. E. lanugo O. S., described, p. 10, pi. 
1, fig. 6 ; E. massa 0. S., described, pp. 9 & 10, pi. i, fig. 5, pi. iv, fig. 2 : 
Arnesen (3)." E. lanugo 0. S., E. intermedia 0. S., E. lucifera 0. S., 
and E. massa 0. S., vide Mycale.' E. plumosa n. sp., Trondhjems 
fjord; Arnesen (3) p. 11, pi. ii, fig. 1, pi. iv, fig. 3, pi. vi, fig. 7. E. 
rhopalophora 0. S., described ; Arnesen (3) pp. 10 & 11, pi. i, fig. 7 : 
see also Rhaphidotheca. 
Esperiopsis Crtr., diagnosed ; E. schmidtii n. sp,, Osterfjord, Norwegian 
Coast, 500 m. : Arnesen (3) pp. 8 & 9, pi. i, fig. 4, pi. iv, fig. 1, pi. vi, 
fig. 3. 
Gomphostegia Tops., a synonym of Rhaphidotheca Sav. Kent; Thiele 
( 51) p. 383. 
Hamacantha Gray, diagnosed ; Arnesen (3) p. ii. H. espenoides (R. & D.) ; 
Kirkpatrick (26) p. 253. H. johnsoni (Bwk.) Gray, described ; 
Arnesen (3) p. 12. 
Homceodictya Ehlers, diagnosed ; H. palmata (Johnst.) Tops., described: 
Arnesen (3) p. 13. 
