XVII. SPONGIjE. 
[ 1905 ] 
26 Spong. 
(8) pp. 208, 209, pi. xiv, fig. 4 — S, elastica, var. massa F. E. S., 
described: Dragnewitsch (9) pp. 20, 21. — S. fragilis Mont., var. 
ramosa F. E. S., described: Dendy (8) p. 208. — S. fragilis, var. 
tubulosa F. E. S., described : Dragnewitsch (9) p. 20.— S. incrustata, 
n. sp., Gulf of Manaar and W. coast of Ceylon : Dendy (8) pp. 209, 
210. — S. repens , n. sp., Juan Fernandez: Thiele (36) pp. 486-488, 
fig. 111. 
Spongeliidce, defined : Dendy (8) p. 207. 
Spongia for Euspongia, p. 482 ; S. cerebralis , n. sp., Juan Fernandez, 
pp. 482, 483, figg. 19, 107 ; JS. magellanica , n. sp., Punta Arenas and 
Calbuco, pp. 483, 484, figg. 18, 106 : Thiele (36). 
Spongidce, defined : Dendy (8) p. 210. 
Stannomidce Haeckel, referred to the Protozoa: Schulze (31) pp. 4, 5. 
(iv) MYXOSPONGIDA. 
Definition of the Myxospongida, to include Halisarca , Bajulus , Ilexadella , 
and Oscarella , their affinities discussed : Dendy (8) p. 60. 
Halisara dujardini , var. magellanica Tops., described : Thiele (36) p. 490. 
E. INCERT^E SEDIS. 
t Aehilleum rugosum , var. elliptical ZahXlka (48) pp. 21, 168. 
t Amorphospongia rugosa Rom, : ZahAlka (48) pp. 159, 183. 
Ilexadella Topsent, defined, referred to Myxospongida : Dendy (8) p. 61 : 
regarded as derived from Aplysilla by loss of skeleton, and referred 
to Darvrinellidce : Topsent (37) pp. clxxiv and cxc. — II. indica n. sp., 
Gulf of Manaar, 5 fathoms: Dendy (8) pp. 61-63, pi. i, figg. 1-3. 
t Leiofungia, cf. reticulaHs (Munst.): Blaschke (3) p. 165. 
t Somphospongia favositiformis , n. sp., Hamilton Group, Indiana, Whit- 
field (45) p. 300, pi. ix, figg. 1-9, Bull. Amer. Mus. xxi. 
t Sparsispongia (?) sp. : Blaschke (3) p. 164. 
t Spongites saxonicus : ZahAlka (48) p. 66. 
iStrephochetus, and S. ocellatus, described, p. 156, pis. lvi, lvii, lix; S. 
brainerdi, pi. lvi, fig. 2, pi. lvii, fig. 8, p. 156, atratus , pi. lvi, fig. 1, 
pi. lvii, fig. 9, p. 157, Beekmantown calciferous, Vermont, richmond- 
ensis , Kentucky and Indiana (Miller) p. 157, prunus , Vermont, 
pi. lvi, fig. 5, pi. lvii, fig. 6, p. 160 : Seely, Rep. Vermont State Geol. 
iii, n. spp. 
f Vermispongia , n. g., V. hamiltonensis, n. sp., figg. 1-5 ; dactyliformis, 
n. sp., ng. 6, pi. xi, Hamilton Group, Indiana, Whitfield (45) p. 298, 
Bull. Amer. Mus. xxi. 
