SYSTEMATIC. 
Spong. 27 
(b) Order HALICHONDRINA. 
Family Haplosclerid^e. 
Sub-family Chalininas. 
Chalina Grant, diagnosed ; G. rectangularis (?) R. & D. : Arnesen (3) p. 4. 
Siphonochalina claviformis Kieschmck, a doubtful species; Thiele (50) 
p. 940. 
Toxochalind ternatensis Kieschnick, a doubtful species; Thiele (50) 
p. 940. 
Sub-family Renierinae. 
Amorphina appendiculata 0. S., vide Eumastia. A. paciscens O. S., vide 
Pellina. 
Eumastia O. S., diagnosed; Arnesen (3) p. 6. E. appendiculata for 
Amorphina appendiculata 0. S., redescribed; Thiele (51) pp. 379 & 
380, pi. xxi, fig. 7. E. sitiens 0. S., described ; Arnesen (3) pp. 6 & 7, 
pi. i, fig. 1 , pi. vii, fig. 1 . 
Gellius Gray, diagnosed; Arnesen (3) p. 7. G. conchi (Bwk.) ; Thiele 
(50) p. 941. G. esperi n. sp. ; Arnesen (3) p. 7, pi. i, fig. 2. G. 
fibidatus (0. S.); Thiele (50) p. 941. G. forcipatus n. sp., Ternate ; 
Thiele (50) p. 942, pi. xxviii, fig. 6. G. irregularis Kieschnick is a 
doubtful species ; Thiele (50) p. 941. G.jugosus ; Thiele (50) p. 941. 
G. massa n. sp., Bergen, 130 m. ; Arnesen (3) pp. 7 & 8, pi. i, fig. 3. 
G. truncatus Kieschnick is a doubtful species; Thiele (50) p. 941. 
Halichondria Fleming, diagnosed ; Arnesen (3) pp. 4 & 5. H. fragilis 
Kieschnick and incrustans Kieschnick are doubtful species; Thiele 
(50) pp. 935 & 936. H. pachastrelloides Tops. ; Kirkpatrick (26) 
p. 254. H. panicea Jnstn., described; Arnesen (3) p. 5. H ., 2 spp. 
from Ternate ; Thiele (50) p. 937. 
Pellina paciscens for Amorphina paciscens 0. S., redescribed; Thiele (51) 
p. 380, pi. xxi, fig. 8. i 5 ., sp. from mouth of Tugela River, 65-80 
fathoms; Kirkpatrick (26) p. 254. 
Petrosia cancellata n. sp., Ternate, pp. 938 & 939, pi. xxviii, fig. 3; 
P. strongylata n. sp., Ternate, p. 938, pi. xxviii, fig. 2: Thiele (50). 
Protoschmidtia expansa n. sp., Ternate, p. 939, pi. xxviii, fig. 4; P. 
pulvillus n. sp., Ternate, p. 939, pi. xxviii, fig. 5 : Thiele (50). 
Reniera Ndo., diagnosed ; Arnesen (3) p. 5. R. fistulosa 0. S., physiology ; 
Cotte (9). R. simplex Bwk., described; Arnesen (3) pp. 5 & 6. R. 
simidans (Johnst.), physiology; Cotte (9), see II, c, iv. R. sp., 
described ; Arnesen (3) p. 6. 
Sub-family Spongillinae. 
Carterius stepanowi Dyb. in the Schohsee, near Plon ; Zacharias (58). 
Ephydatia jluviatilis , spermatogenesis; Gorich (19) pp. 65-67, fig. 1: 
Zuikov (59) p. 43. E. miilleri Liebk., described ; Zuikov (59) pp. 42 
& 43, fig. 20. 
Spongilla fragilis Leidy, growth and gem mule formation ; Lendenfeld 
(28). 
Spoiigilla lacustns Lam., physiology ; Cotte (9). 
