50 Prot. 
XYIII. PROTOZOA. 
[ 1904 ] 
3. HELIOZOA. 
Full account of the Heliozoa and “ Pseudo-Heliozoa” of Lake Geneva and 
neighbourhood, with text-figg. of all species described ; classification 
of genera and species, Penard (262). 
(a) Aphrothoraca : — 
Actinophrys sol var. fusca n. var., Lake of Geneva, diagnosed, Penard 
(262) p. 113, 5 figg. 
Actinosphcerium arachnoideum n. sp., Lake of Geneva, diagnosed, Penard 
(262) p. 137, 1 fig. ; A. eichhorni , full description of cytological changes 
in, indicative of physiological degeneration, Hertwig (138) pp. 307- 
342, pis. ix-xii; A, e. varr. majus n. var., Lake of Geneva, diagnosed, 
Penard (262) p. 130, 1 text-fig. 
(b) Chlamydophora : — 
Astrodisculus laciniatus n. sp., p. 146, 1 fig., A. zonatus n. sp., p. 142, 1 fig., 
Lake Geneva, diagnosed, Penard (262). 
Heteropkrys glabrescens n. sp., p. 161, 6 figg., H. myriopoda var. holochlora 
n. var., p. 154, 4 figg., Lake Geneva, diagnosed, Penard (262). 
(c) Chalarothoraca : — 
Acanthocystis pelagica n. sp., occurrence and diagnosis, Ostenfeld (254) 
p. 4, figg. 4-7 ; A. mimetica n. sp., p. 229, 4 figg., A. pantopoda n. sp., 
p. 255, 1 fig., A. rubella n. sp,, p. 232, 1 fig., Lake of Geneva, diagnosed, 
Penard (262). 
Lithocolla Jlavescens n. sp., Lake Geneva, diagnosed, Penard (262) p. 220, 
1 fig. 
Pompholyxophrys ovuligera n. sp., Lake Geneva, diagnosed, Penard (262) 
p. 214, 1 fig. 
Raphidiophrys ambigua n. sp., p. 179, 3 figg., R. coerulea n. sp., p. 187, 
1 fig., R. intermedia n. sp., p. 183, 1 fig., R. symmetrica n. sp., p. 181, 
1 fig., Lake Geneva, diagnosed, Penard (262) ; R. marina n. sp., 
occurrence and diagnosis, Ostenfeld (254) p. 4, figg. 1-3. 
Raphidocystis n. g., p. 189, R. glutinosa n. sp., p. 199, 3 figg., R. stellata 
n. sp., p. 191, 3 figg., R. tubifera n. sp., p. 193, 1 fig., Lake Geneva, 
diagnosed, Penard (262). 
(d) Desmothoraca : — 
Choanocystis n. g., lepidula n. sp., Lake Geneva, diagnosed, Penard (262) 
p. 288, 1 fig. 
Hedriocystis reticulata n. sp., Lake Geneva, diagnosed, Penard (262) p. 284, 
4 figg. 
4. RADXOLARIA. 
(a) Peripylaria : — 
t Acanthosphcera parvula, Miocene, Maryland, diagnosed, Martin (228) 
p. 458, pi. cxxx, fig. 21. 
iCannartidium sp., Miocene, Maryland, note on, Martin (228) p. 456, 
pi. cxxx, fig. 18. 
iCannartiscus amphicylindricus , p. 457, pi. cxxx, fig. 19, C. marylandicus 
n. sp., p. 457, pi. cxxx, fig. 20, Miocene, Maryland, diagnosed, Martin 
(228). 
iCenosphcera porosissima , Miocene, Maryland, diagnosed, Martin (228) 
p. 459, pi. cxxx, figg. 24 & 25. 
Gollozoum inerme , plankton, Capri, Lo Bianco (205) p. 68, pi. xxxvii, 
fig. 158. 
