PROTOZOA. 
587 
JRaf^pailia salix^ sp. n., Schmidt, 1. <?. p. 9, Taf. 2. fig. 8, very near to R. 
viminaUs, R. syrinpelln, sp. n., Schmidt, 1. c. p. 10, Taf. 2. fig. 0. 
Dictyonella, g. n., Schmidt, 1. c. p. 10. Sponge-mass of very varied external 
appearance, sometimes shrubby, sometimes massy and knobby, having a 
distinct outer membrane. The skeleton is distinctly marked out, and is sym- 
metrical. The spicules are simple. D. cactus, sp. n., Schmidt, /. c. p. 10 ; D. 
lahyrmthica, sp. n., Schmidt, 1. c. p. 10. 
Resmacidon armatum, sp. n., Schmidt, 1. c. p. 11, Taf. 2. fig. 10 ; D. cadu- 
cum, sp. n., Schmidt, ^. c. p. 11, Taf. 2. fig. 11 j D. arcifet'um, sp. n., 1. c. p. 12, 
Taf. 2. fig. 12. 
Svhcrotelites, g. n., Schmidt, 1. c. p. 12. Appearance that of a fleshy 
shrubby species of Sube7'ites. Spicules in a distinct network. No outer mem- 
brane, but outer surface smooth. S. mercator, sp. n., Schmidt, I c, p. 12, 
Taf. 2. fig. 15. 
Sclerilla Jilans, g. et sp. n., Schmidt, 1. c. p. 12, Taf. 6. fig. 1 ; S. texturans, 
sp. n., Schmidt, 1. c. p. 13. 
Myxilla proteidea, sp. n., Schmidt, 1. c. p. 13, Taf. 2. fig. 13 ; M. pulvinar, 
sp. n., Schmidt, 1. c. p. 14, Taf. 2. fig. 14. 
Suhcntes sponyiosus, sp. n., Schmidt, 1. c. p. 14 ; S. hystrix, sp. n., Schmidt, 
1. c. p. 16 ; S. ruyosus, sp. n., Schmidt, 1. c. p. 16. 
PachastreUa, g. n,, Schmidt, I c. p. 16. A Compaginea without an outer 
membrane, with spicules of a character partly that of a Compaginea and 
partly that of a Corticata. P. monilifera, sp. n., Schmidt, 1. c. p. 16, Taf. 3. 
fig- 7. 
Callites, g. n., Schmidt, 1. c. p. 16. A genus standing on the boundary be- 
tween the Compaginea; and the Oumminccc, whore the sarcode-substanco 
forms a most irregular scafibld or shelf-work of passages and channels, yet 
there is no bark-layer (a characteristic of Gummineai). Siliceous star-like 
bodies are present. C. lacazii, sp. n., Schmidt, 1. c. p. 10, Taf. 3. fig. 2. 
Spirastrella, g. n., Schmidt, 1. c. p, 17. There is commonly present in the 
barky layer of this genus a form of star-like siliceous bodies, on which the 
rays are arranged spirally. S. cimctatrix, sp. n., Schmidt, 1. c. p. 17, Taf. 3. 
fig. 8. 
Ancorina simplicissima, sp. n., Schmidt, 1. c. p. 18, Taf. 3. fig. 9, Taf. 4. fig. 9 ; 
A. tripodaria, sp. n., Schmidt, 1. c. p. 18, Taf. 3. fig. 10. 
Papyiula, g. n., Schmidt, 1. c. p. 18. A genus of Corticata, in which the 
barky layer contains small double-pointed [furcated attenuato-patento-ter- 
nate of Bowerbank ?] spicules. P. candidata, sp. n., Schmidt, 1. c. p. 18, Taf. 4. 
fig. 1. 
Stelleta mneronata, sp. n., Schmidt, ?. c. p. 19, Taf. 4. fig. 2 ; S, pathologica, 
sp. n., Schmidt, 1. c. p. 19, Taf. 3. figs. 3, 4 ; S. scahra, sp. n., Schmidt, 1. c. p. 19, 
Taf. 4. fig. 3 ; S. euastrum, sp. n,, Schmidt, 1. c. p. 20, Taf. 4. fig. 4 ; S. geodina, 
sp. n., Schmidt, 1. c. p. 20, Taf. 4. fig. 6 ; S, intermedia, sp. n., Schmidt, I, c. 
p. 21, Taf. 4. fig. 6. 
Geodia canaliculata, sp. n., Schmidt, h e. p. 21, Taf. 4. fig. 7. 
Adriatic Sponges. 
Halisai'ca lohdaris and II. gnttida. The anatomy of these species is given 
and illustrated by Schmidt, 1. c. p. 24, Taf. 6. figs. 2, 3. 
Chondrosia tvhei'cvlata, sp. n., Schmidt, 1. c. p. 24, Taf. 6. fig. 4, Sebenico, 
