MON AXON IDA. 
Spong. 31 
viscosa , Tops., and elegans , Bwk., from Roscoff ; id. (4) pp. 534 & 
535. C. scyphonoides , Lam., from Coral Reefs of Suakin, description } 
Keller, (1) p. 305, taf. xvi, fig. 4. 
R. coccinea , p. 307, taf. xvi, figs. 5 & 6, elastica, p. 306, taf. xvi, figs. 3 
& 7, ridleyi , p. 308, Red Sea, Keller (1) ; R. spiculotenuis, Canaries, 
Topsent, (1) p. 12, pi. ii, figs. 3 & 4 : n. spp. 
Sapline , Gray : definition of genus ; Keller, (1) p. 321. 
S. massa ?, n. sp., Keller, (1) p. 321, taf. xvii, figs. 25 & 26, Reefs of 
Suakin. 
Sclerochalina fistnlaris, pp. 25 & 26, pi. i, fig. 1, sinuosa, pp. 26 & 27, pi. i, 
fig. 2, Red Sea, TorsENT (3), n. spp. 
Spirastrellidce , sensu restricto ; Keller, (1) p. 322. 
Spirastrella , O. S. : definition of genus, p. 322 ‘ S. decumbent , Ridley, 
Suakin, 15 metres, description, p. 323, taf. xviii, figs. 27, 28, 32, & 33 ; 
Keller (1). 
Spongillidcc : for a complete list of genera and species, with numerous 
figures, see Weltner, pp. 208-222 ; for the distribution, see id. pp. 222- 
226. Spongillid sp., from a stream in Luwu, Central Celebes; Weber, 
(1) p. 44. ' 
Spongilla cinerea , Carter, River Batjo, W. Coast of Celebes, pp. 35-37 ; 
8. sp. P, Singkarah Lake, S. sp. ?, Lake Situ, Java, and S. sp. ?, W. Java, 
pp. 42 & 43 ; Weber (l). S. fragility Leidy, pp. 88 & 89, lacustris , 
L., p. 90, machayi , Carter, p. 89, terranovcc , Potts, p. 91, Canada ; 
MacKay. 
S. decipiens , River Lapadi or Sareminja, W. Coast of Celebes, pp. 40-42, 
pi. iv, figs. 1-5, sumatrana , Lake of Singkarah, pp. 38-40, pi. iv, figs. 6-10, 
W^ber (1) : n. spp. 
Sty linos columella , for Desmacidon columella , Bwk., pp. 536 & 537, pi. 
xxii, figs. 6a, b ; S. simplicissima and uniform Bwk., Roscoff, pp. 535 & 
536 ; Topsent (4). 
Suberitidcc : definition of family ; Keller, (1) pp. 314 & 315. 
Suberites , Nardo : definition of genus ; S. carnosus , Johnston, Reefs of 
Suakin, description; Keller, (1) p. 315, taf. xvii, fig. 15. S. carnosus 
(Johnst.), O. S., from Oceanic Coasts of France ; Topsent, (2) p. 129. 
S. domuncula , Ndo., Killery Bay, W. Coast of Ireland ; Hanitsch, pp. 
218 & 219. S. domunctda, Ndo., p. 15, ficus (Johnston), O. S., from 
Senegal, p. 14 ; Topsent (1) ; S. ficus, from Oceanic Coasts of France ; 
id. (2) p. 129. S. ficus , Esper, W. Coast of Ireland, 5-15 faths. ; 
Hanitsch, p. 219. 
S. clavatus , Reefs of Suakin and Suez, p. 316, taf. xviii, figs. 37-39, 
incrustans , Bay of Assab, p. 318, taf. Xvii, figs. 19 & 20, mastoideus , Reefs 
of Suakin, p. 317, taf. xvii, figs. 16-18, Keller (1) : n. spp. 
Tedantd, Gray : definition of genus ; Keller, (1) p. 312. T. y sp. from 
Red Sea ; Topsent, (3) pp. 23 & 24. 
T. assabensis , Bay of Assab, 10 metres, Keller, (1) p. 313, taf. xvi, ' 
figs. 11 & 12 ; T. brucei , Bahamas, Wilson (no description) ; T. ckev- 
reuxi , Senegal, Topsent, (1) pp. 13 & 14, pi. ii, figs. 1 & 2 : n. spp. 
