Systematik. 241 
wegen muss Gellius aber an Stelle von Desmacodes und Desmacella 
kommen. 
2. Biemma.*) „Sponge massive. Skin rough, spieulose. Skeleton 
irregularly netted; fibres composed of longitudinal dispersed spieules, 
eovered with a thin coat of horny matter. Spieules: — 1. Fusiform. 
2. Bihamate, simple, or contorted and reversed.“ Es liegt noch kein 
Grund vor, diese Gattung von Gellius zu trennen. 
3. Asychis.**) „Sponge —? Spieules of two forms: — 1. Fusiform, 
large. 2. Fusiform, slender, bihamate, simple (and contorted), large, and 
small.“ Wie oben. Uebrigens der Name schon 1866 vergeben (Kinberg 
Verm.). 
4. Dymmus.***) „Sponge —? Spieules: — 1. Simple, bihamate with 
an umbo on the inner or outer, or on the inner and outer sides of the 
middle of the shaft.“ Gemacht für eine unbeschriebene Spongie von 
Bowerbank, also aufzugeben. 
5. Damo.j) „Sponge —? Spieules bihamate, each of the ends cela- 
vate, rounded,‘blunt.“ Wie oben. 
6. Abila.yj) „Sponge-coating smooth. Oscules minute, dispersed. 
Skin spieulose. Spieules of three kinds: — 1. Fusiform, long, slender, 
smooth. 2. Fusiform, tricurvate, stout. 3. Fusiform, stout, broad, spined.“ 
Kann vorläufig noch unter Gellius kommen. Man vergleiche S. 235, wo 
der Name Abila einem ganz anderen Schwamm gegeben ist! 
7. Orina. ij) ,„Sponge massive, smooth. Outer skin with a net- 
work of spieules. Spieules of two kinds: — 1. Fusiform slender. 
2. Fusiform truncate.“ Wie oben. Jedenfalls nicht von Abila zu trennen. 
8. Oceanopia Norm. (wahrscheinlich Druckfehler für Oceanapia). 
Fam. Pteronemadae. 
1. Pteronema Leidy. 
2. Caliptera Kent. 
3, Vasella Kent. 
Fam. Lanuginellidae. 
*], Lanuginella Kent. 
Fam. Euplectelladae. 
*], Euplectella Owen. 
Fam. HAyalothaumadae. 
Hyalothauma Herkl. u. Marsh. 
*2. Semperella.*7) „A tubular vase-shaped sponge, with the tube 
closed with a convex lid, and the wall of the tube formed of elongated; 
siender, subeylindrical, thread-like, siliceous spieules, which are kept in 
the vase-like form by the sarcode. The base contracted, some of the 
thread-like spieules of the tube and others being produced into a stem, 
1 
Al ce. p. 538. — **) 1. c..p: 539. — ***) 1. e. 2. 5399. — 1. cp. 5399. — th) c. 
p- 539. — ff) 1. c. p. 539. — *}) Gray in Ann. and Mag. Vol. II, 1868, p. 376 #. 
Bronn, Klassen des Thier-Reichs, Spongien. 16 
