6 Por. 
III. Porifera or Spongida. 
[1915] 
Hyalonema revised and divided into 
seven subgenera, pp. 152-390, and 
(subgen. Hyalonema ) obtusum, p. 153, 
4300-4500 metres, agassizi, p. 172, 
4000-4500 metres, polycaulum, p. 201, 
3811 metres, placuna , p. 207, 4504 
metres, Tropical Pacific, tenuifusum, 
p. 223, tylostylum, p. 229, 4063 metres, 
off Northern Peru, grandancora , p. 235, 
4142 metres, South-eastern Tropical 
Pacific, spp. n, and gracilis , robusta, 
p. 153, varr. n. of obtusum , Tropical 
Pacific [for spp. placed in other sub- 
genera see under Leptonema , Oonema, 
Phialonema, Prioncma , Skianema and 
Thallonema ], Lendenfeld T.c. 
Lanugonychia, gen. n., flabellum, 
sp. n., 3964 metres, off Easter Is., 
Lendenfeld T.c. p. 103. 
Leptonema [name preoccupied] subgen, 
n., ( Hyalonema ) for H. (L.) campanula. 
sp. n., 3811 metres, Southern Tropical 
Pacific, Lendenfeld T.c. p. 245. 
| Leptophragma sollasi nom. n., for 
L. fragile Sollas non Romer, Siemirad- 
zki Wien Beitr. Pal. Geol. OstUng. 36 
p. 195. 
Oonema subgeu. n., ( Hyalonema ), 
p. 307, for H. bianchovatum Wilson, and 
II. ( 0 .) henshaxoi, p. 327, densum , 
p. 341, 4086 metres, Eastern Tropical 
Pacific, crassispinulum , p. 332, 4504 
metres, sequoia, p. 349, 4429 metres, 
Central Pacific, spp. n. and pimdina, 
var. n. of bianchoratum, p. 308, 4063 
metres, off Northern Peru, Lendenfeld 
Mem. Mus. Comp. Zool. Harvard Coll. 
42. 
Phialonema [name preoccupied, 
Stein, 1878] subgen. n. ( Hyalonema ) 
for H. (P.) brevancora , sp. n., 4504 
metres, Central Tropical Pacific, 
Lendenfeld T.c. p. 358. 
■j Placotelia gen. n. marcoui sp. n., 
Jurassic of Switzerland, Oppliger 
Abhandl. Schweizer. Palaont. Ges. 
Geneve 40 p. 40. 
t Polyschema gen. n. p. 29, hersber- 
gense, p. 30, balmense , p. 31, spp. n., 
Jurassic of Switzerland, Oppliger T.c. 
Prionema subgen. n., p. 251 ( Hyalo- 
nema ) for II. (P.) agujanum, p. 251, 
4063 metres, off Northern Peru, 
azuerone , p. 206, pinulifusuin , p. 284, 
1067 metres, off Southern Coast of 
Western Panama, spinosum, p. 273 
crassum , p. 278, 4243 metres, Eastern 
Pacific, fimbriatum, p. 294, 4243 metres, 
Central Pacific, spp. n. and tenuis , lata, 
varr. n. of agujanum, p. 251, Lenden- 
feld Mem. Mus. Comp. Zool. Harvard 
Coll. 42. 
Rosella nodastrella sp. n., Azores, 
Topsent Monaco Bui. Inst, oc^an. 303 
p. 1. 
Skianema subgen. n., p. 376, 
{Hyalonema), for H. (S.) aequatoriale, 
p. 377, 4243 metres, umbraculum, 
p. 383, 4429 metres, Central Tropical 
Pacific, spp. n., Lendenfeld Mem. Mus. 
Comp. Zool. Harvard Coll. 42. 
"\Sporadopyle costata, cracoviensis , 
polonica, spp. n., Polish Jurassic, Siemi- 
radzki Wien Beitr. Pal. Geol. OstUng., 
36, p. 191 ; S. gcrminata, p. 21, fistulata, 
p. 22, intermedia, p. 23, aperta, p. 24, 
tenuis, p. 27, spp. n., Jurassic of Switzer- 
land, Oppliger Abhandl. Schweizer. 
Palaont. Ges. Geneve 40. 
Staurocalyptus hamatus, sp. n., 549 
metres, Eastern Pacific, Lendenfeld 
Mem. Mus. Comp. Zool. Harvard Coll. 
42 p. 112. 
1[Stauroderma birmensdorfense, sp. n., 
Jurassic of Switzerland, Oppliger, 
Abhandl. Schweizer. Palaont. Ges. 
Geneve 40 p. 39. 
Thallonema subgen. n., (Hyalonema), for 
H. (T.) geminatum sp. n., 4429 metres, 
Central Tropical Pacific, Lendenfeld 
Mem. Mus. Comp. Zool. Harvard Coll. 
42 p. 390. 
t Tremadictyon explanatum, sp. n., 
Polish Jurassic, Siemiradzki Wien. 
Beitr. Pal. Geol. OstUng. 36 p. 192. 
' \Trochobolus salinensis, p. 51, cylin- 
dratus, p. 52, granulosus, p. 53, spp. n., 
Jurassic of Switzerland, Oppliger, Ab- 
handl. Schweizer. Palaont. Ges. Geneve 
40. 
t V errucocoelia ramosa , sp. n., 
Jurassic of Switzerland, Opplioer T.c. 
p. 29. 
TETRAXONIDA. 
New Tetraxonida from Saldanha and 
Table Bays, Stephens Trans. R. Soc. 
Edinburgh 50 pp. 423-467. 
(i) HOMOSCLEROPHORA. 
[Nothing.] 
