4 Tor . 
ill. Porifera or Spongida. 
[1918] 
NON-CALCAREA. 
(a) Myxospongida. 
[Vacant.] 
(b) Hexactinellida. 
[Vacant.] 
(c) Tetraxonida. 
(i) Homosclerophora. 
| Vacant.] 
(ii) Astrotetraxonida. 
Choridrilla nucula, description and 
comparison with other forms ; Top- 
sent Arch. Zoo.l. 6xp. 57 p. 601. 
(iii) Siomatotetraxonida. 
Amorphinopsis excavans Carter var. 
n. robinsonii, Malay Peninsula, des- 
cribed ; Ann and ale Mem. Asiat. 
Soc. 6 p. 198 pi. ii fig. 3, pi. ix fig. 1. 
Donalia diplodcrma, description and 
comparison with other species ; Top- 
sent Arch. Zool. exp. 57 p. 563 text- 
figs. 22-24. — D. ( Tethya ) seychellensis, 
lyncurium , and ingalli vars. A and B, 
from Bermuda, notes on ; Crozier 
Ann. Mag. Nat. Hist. Ser. 9 1 pp. 
11-18. 
Ephydatia fluviatilis var. n. intha, 
Inle Lake, diagnosed ; Annandale 
Rec. Ind. Mus. 14 p. 76 pi. xxi figs. 
2 and 3 and text- fig. 2. 
Qellius abbreviates sp. n. p. 538 ; 
Topsent Arch. Zool. exp. 57. — G. 
arcticus sp. n. Spitzbergen ; Hents- 
chel Vet.-Ak. Handl. 54 No. 3 p. 12 
fig. 2. 
Menanetia tojisenti sp. n. ; Hernan- 
dez Trabaj. Mus. Nat. Ci. (Ser. 
Zool.) No. 36 p. 26 text-fig. 4. 
Reniera glacialis p. 15 fig. 3, spitz - 
bergensis p. 16 fig. 4 spp. n., Spitz- 
bergen ; Hentschel Vet.-Ak. Handl. 
54 No. 3. — R. mens p. 536, coerules - 
cens , p. 537, spp. n., ; Topsent Arch. 
Zool. exp. 57. 
Spirastrella cunctatrix, description 
and comparison with other species j 
Topsent T.c. p. 542 text-figs. 1-3. 
Spongillidae, physiological observa- 
tions on ; v. Trigt Proc. Akad. 
Wet. Amsterdam 20 No. 7 pp. 1061- 
1075 6 text-figs. 
S pong ilia inarmala, p. 200 pi. ix 
fig. 2, geei p. 202, potamolepis p. 208- 
pi. ii fig. 5, spp. n., occurrence and 
notes ; Annandale Mem. Asiat. Soc. 
6 . 
Trochospongilla sol sp. n., China,, 
diagnosed ; Annandale T.c. p. 205- 
pi. ix fig. 6. 
(iv) Lithistida. 
[Vacant.] 
(d) Euceratosa. 
Hippospongia equina var. elastica 
Lendenf., notes on larval forms 
Vaney & Allemand-Martin C.R. 
Acad. Sci. 166 pp. 82-84. 
Thorectandra diver sispieulif era sp.. 
n. ; Hernandez Trabaj. Mus. Nat. 
Ci. No. 36 p. 34. 
PORIFERA. 
IN CERT AE SEDIA. 
■ \Archaeocyatidae , Cambrian, Cor- 
doba, note on structure, regarded as 
a group allied to sponges ; Hernan- 
dez-Pacueco C.R. Acad. Sci. 166 
pp. 691-694. 
