4 Por. 
III. Porifera or Spongida. 
[1917] 
Axinectya gen. n. iovAxinella mariana 
Ridl. and Dendy ; Hallmann op. cit. 
42 p. 393. 
Calyx stipitatus Tops. p. 81 pi. iv 
fig. 13, pi. vi fig. 24, Topsent 2me 
Exped. antarct. frail g. 1917. 
Clathrissa glaberrima Tops. p. 46 
pi. ii fig. 2, pi. vi fig. 3 ; Topsent T.c. 
Dendoryx ramilobosa Tops. p. 47 
pi. iii fig. 3, pi. vi fig. 6, described ; 
Topsent T.c. 
Desmoxya gen. n. for Higginsia 
lunata Carter, described ; Hallmann 
Proc. Linn. Soc. N.S.W. 41 p. 649 
pi. xxix fig. 5, pi. xxxviii fig. 5, pi. xliv 
fig. 4. 
Dragmacidon gen. n. for Thrinaco- 
phora agariciformis Dendy, and other 
forms ; Hallmann T.c. p. 639. 
Dragmaiella gen. n. for Desmacella 
aberrans Tops. ; Hallmann T.c. p. 640. 
Echinaxia frondula (Whitelegge) de- 
scribed ; Hallmann op. cit. 42 pp. 391- 
398 pi. xxi figs. 3 and 4, pi. xxii. 
Ephydatia fluviatilis, occurrence in 
Notts. ; Carr Invertebrate Fauna of 
Notts. 1916 p. 2. 
Forcepia fragilis sp. n., occurrence 
and diagnosis ; Stephens Proc. R. Irish 
Acad. 34 Sect. B p. 9 pi. i fig. 2. 
Gelliodes spongiosus Tops. p. 74 pi. vi 
fig. 21, benedeni Tops. var. n. fortior 
p. 75 pi. ii fig. 1, pi. vi fig. 22 ; Top- 
sent 2me. Exped. antarct. franc. 1917. 
Gellius tremulus Tops. p. 79 pi. i fig. 7, 
pi. vi fig. 20, tencllus Tops. p. 80 pi. vi 
fig. 23 ; Topsent T.c. 
Guitarra sigmatifera Tops. p. 71 pi. i 
fig. 6, pi. vi fig. 16 ; Topsent T.c. 
Helerectya gen. n. for Raspailia (?) 
villosa Thiele ; Hallmann Proc. Linn. 
Soc. N.S.W. 42 pp. 393 and 394. 
Homoeodictya erinacea Tops. p. 68 
id. iii fig. 1, pi. vi fig. 15, hirhpatrichi 
Tops. p. 70 j 1. i fig. 2, pi. vi fig. 14 ; 
Topsent 2me Exped. antarct. franc;. 
1917. 
Hymeuiacidon torquata Tops, de- 
scribed, p. 40 ; Topsent T.c. 
Laoucenia nom. n. proposed for 
generic names Laotho'e, and Narnia 
(praeocc.) ; Hallmann Proc. Linn. 
Soc. N.S.W. 41 p. 675. 
Latrunculia apicalis and bocagei » 
chessman spicules and their formation ; 
Dendy J. Quek. Microsc. Cl. (2) 13 
pp. 231-246 pis. xv-xvii. 
Microxina charcoti Tops. p. 73 pi. i 
fig. 3, pi. ii fig. 3, pi. vi fig. 17 ; Top- 
sent 2me Exped. antarct. franc;-. 1917. 
Mycale ( Paresperella ) atlantica sp. n. 
described, Stephens Proc. R. Irish 
Acad. 34 Sect. B p. 7 pi. i fig. 1. 
Myxilla elongata Tops. p. 54 pi. iv 
fig. 3, pi. vi fig. 11 magna Tops. p. 56 
pi. iii fig. 4, pi. vi fig. 9, pislillaris 
Tops. p. 57 pi. i fig. 5, pi. vi fig. 8 ; Top- 
sent 2me Exp6d. antarct. franc;. 1917. 
Ophlitasponyia flabellata Tops. ; Top- 
sent T.c. p. 41 pi. i fig. 4, pi. vi fig. 2. 
Paralimea gen. n. ( Spirastrellidae ), for 
Bubaris constellata Bowerb. ; Hall- 
mann Proc. Linn. Soc. N.S.W. 41 p. 675. 
Rhabdosigma mammillata (White- 
legge) descr., Hallmann op. cit. 42 
pp. 399-404 pi. xxi figs. 1 and 2. 
Rhaphoxya gen. n. ( Axinellidae ) 
p. 641, typica sp. n. Port Phillip, de- 
scribed, p. 643 pi. xxix fig. 3, pi. xxxviii 
figs. 8, 9, pi. xxxix fig. 5, pi. xlii figs. 1, 
2, R. (?) (Rhaphisia) pallida (Dendy), 
p. 646 pi. xxxiii fig. 6, pi. xliii figs. 1, 2 ; 
Hallmann op. cit. 41. 
Strongylamma gen. n.for Chondropsis 
carteri Dendy ; Hallmann T.c. p. 643. 
Stylopus fristedti Tops. p. 52 ; Top- 
sent 2me Exped. antarct. franc;. 1917. 
Tedania oxeata Tops. p. 61 pi. iv 
fig. 14, pi. vi fig. 19 ; Topsent T.c. 
Thrinacophora simplex Tops. p. 39 pi. 
iv fig. 12, pi. vi fig. 1, Antarctic, de- 
scribed ; Topsent T.c. 
Toxemna gen. n. for Desmacella tubu- 
lata (type) and D. fragilis ; Hallmann 
Proc. Linn. Soc. N.S.W. 41 p. 673. 
(iv) Lithistida. 
[Vacant.] 
(d) Euceratosa. 
[Vacant.] 
PORIFERA INCERTAE SEDIS. 
iTholiasterella (?) hindei sp. n. Cam- 
brian, British Columbia, Walcott 
Smithson. Misc. Coll. 67 No. 2 p. 25 
pi. iv fig. 1. 
