SPONGLE. 
30 Spong. 
Heteromeyenia argyrosperma , Potts, rycleri , Potts, and pictovensis, Potts, 
Canada ; MacKay, pp. 93 & 94. 
Heterorhaphidce : definition of family ; Keller, (1) p. 312. 
Hymedesmia stellata , Bwk., from Luc. ; Topsent (6). 
Hymeniacidon sanguined (Gr.), Bwk., and caruncula , from Oceanic 
Coasts of France ; Topsent, (2) p. 129. 
Hymeraphia clavata , Bwk., from Luc. ; Topsent (6). IL echinata , = 
? Trachytedania echinata , Hope, pp. 540 & 541, simplex , Bwk., and coro- 
nula , Bwk., pp. 539 & 540, Roscoff ; Topsent (4). 
H. lacazei, n. sp., from Roscoff, Topsent, (4) pp. 541 & 542, pi. xxii, 
figs. 4 & 5. 
Iophon hyndmani , Bwk. sp., Arran Is. ; Hanitscii, pp. 217 & 218. 
Lasioth'ix, Hinde: diagnosis of genus; Dawson, p. 50. X. curvi- 
costata , Hinde, Siluro-Cambrian, Metis ; id. p. 51, fig. 21. 
tX. Jlahellata, n. sp., Siluro-Cambrian, Metis, Hinde : in Dawson, 
pp. 51 & 52, fig. 22. 
Meyenia everetti, Mills, fluviatilis , L., Canada ; MacKay, pp. 92 & 93. 
Microciona ambigua , Bwk., Roscoff ; Topsent, (4) p. 543. M. plumosa , 
Mont., from Oceanic Coasts of France ; id. (2) p. 128. 
M. dives , n. sp., from Roscoff, Topsent, (4) pp. 543 & 544, pi. xxii, 
figs. 2 & 3. 
iMonilites aff, halddnensis , Carter, Upper Callovian; Wisniowski, 
p. 263. 
Myxilla peachii , Bwk., from Roscoff ; Topsent, (4) p. 539. 
Phakellia ventilabrum (Johnst.), Bwk., from Oceanic Coasts of France ; 
Topsent, (2) p. 129. 
Placospongidce : definition of family ; Keller, (1) p. 324. 
Placospongidj Gray : definition of genus ; P. melobesioide8 ) Gray, Red 
Sea, description, pp. 324-326, taf. xviii, figs. 29-31 ; Keller (1). 
Plocamia micrQcionides (Carter), 0. S., from Roscoff ; Topsent, (4) 
p. 544. 
* Pocillon , n. subg., for the species of Myxilla without bipocilli: Myxilla 
( Pocillon ) irnplicata , Bwk., from Roscoff; Topsent, (4) p. 539. 
Polymastia rohusta , Bwk., from Oceanic Coasts of France ; Topsent, 
(2) p. 129. 
Raspailia ramosa } Mont., and R. stuposa , Mont., Roscoff ; Topsent, (4) 
p. 548. R. ramosa , stuposa , hispida (Mont.), from Oceanic Coasts of 
France ; id. (2) p. 129. 
Renieridce : definition of family ; Keller, (1) p. 303. 
Reniera , Nardo : definition of genus ; Keller, (1) p. 304. R. angulata , 
for Halichcndria angulata var. typica ; Topsent, (6) p. 54. R. densa ?, 
Bwk., from Arran Is. ; Hanitsch, p. 214. R.fistulosa , Bwk., from Oceanic 
Coasts of France ; Topsent, (2) p. 128. R. ingalli , Bwk., from Isle of 
Man ; Herdman, p. 28. 
■\R. moniliformis , Wisn., Upper Callovian ; Wisniowski, p. 263. 
R. normani (Bwk.), O. S., from Luc. ; Topsent (6). R. parasitica , 
Bwk., from Oceanic Coasts of France j id. (2) p. 128. R. rosea } Bwk., 
j ■ . ■ ^ ' 
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