60 Prot. XVIII. PROTOZOA. [1905] 
Orbitoidince , remarks on the constitution of this sub-family, Silvestri 
( 449) pp. 76-79. 
t Orbitolina, constitution and considerations of the genus and comparison 
with allied forms, pp. 468-477 ; 0. choffati n. sp., 0. douvillei n. sp., 
0. intermedia n. sp., 0. paronai n. sp., and 0. polymorpha n. sp., 
named, p. 469, Prever & Silvestri (361) ; 0. conoidea , pi. 17, 
figg. 2 & 3, 0. discoulea , pi. 17, fig. 1, 0. subconcava } pi. 17, figg. 4-6, 
structure and form of shell in, described, Douvill£ (110) pp. 653-661. 
t Orthoph ragmina archiaci , fig. 17, 0. pratti , fig. 18. 0. discus , fig. 19, 
0. marthce , fig. 20, 0. dispansa , fig. 21, 0. sella , fig. 22, 0. radians , 
fig. 23, 0. aspera y fig. 24, 0. nummulitica, fig. 26, 0. patellar is y fig. 27, 
O. varians , fig. 25, 0. stellata, fig. 28, 0. aprutina , fig. 29, 0. illyrica , 
fig. 30, 0. chudeaui , fig. 36, occurrence noted, Prever (360) 
pp. 574-576. 
t Paroncea heeri , fig. 11, P. airaghii , fig. 12, P. subairaghii , fig. 13, 
P. eocenica n. sp., fig. 14, P. subeocenica Prev. fig. 15, P. sub- 
beaumonti , fig. 16, Eocene, Appennines, occurrence noted, Prever 
( 360) pp. 572-576. 
t Pelosina hemisphcerica n. sp., occurrence and diagnosis, Chapman & 
Howchin (79) p. 6, pi. 2, fig. 2. 
\Peneroplis ellipticus , p. 7, pi. 1, fig. 14, P. Icevigatus , p. 7, pi. 1, fig. 15, 
P. gervillei , p. 7, pi. 1, fig. 16, P. orbicularis , p. 7, pi. 1, tig. 17, 
d’Orbigny’s forms and figures, interpreted and notes on, Fornasini 
(147). 
t Pentellina n. g. (with Munier-Chalmas), p. 116, P. heberti n. sp., a & b 
forms, p. 116, pi. 2, fig. 30, text-figg. 1 & 2, P. chalmasi n. sp., a & B 
forms, p. 119, pi. 2, fig. 31, text-figg. 3-5, P. douvillei n. sp., a form, 
p. 119, pi. 2, fig. 32, text-fig. 6, P. strigillata (d’Orb.), a & b forms, 
p. 124, pi. 2, fig. 35, pi. 3, fig. 39, text figg. 16-17, P. pseudo-saxorum 
n. sp., a & b forms, p. 126, pi. 2, fig. 36, pi. 3, fig. 40, text-figg. 19 & 
20, Eocene and Cretaceous, France, diagnosed, Schlumberger (411). 
t Periloculina raincourti n. sp., a & b forms, Eocene, France, described, 
Schlumberger (411) p. 122, pi. 2, fig. 34, text-figg. 10-14. 
Placopsilina cenomana , note on, Sidebottom (442) p. 4, pi. 1, fig. 7. 
+P. tenuitesta n. sp., p. 8, pi. 3, fig. 9, occurrence and diagnosis, Chapman 
& Howchin (79). 
t Planulana elongata, p. 10, pi. 2, fig. 15, P. striata , p. 10, pi. 2, figg. 18- 
20, P. depressa , p. 11, pi. 2, fig. 16, d’Orbigny’s forms and figures 
interpreted and notes on, Fornasini (147). 
t Pleurostomella (?) antiqua n. sp., p. 14, pi. 2, fig. 5, occurrence and note, 
Chapman & Howchin (79). 
Polymorphina spp., development of shell in, Cushman (96), p. 546, text- 
fig. 15, and pi. 1, figg. 14-17 ; P. alveoliniformis n. sp., diagnosed, 
p. 821, pi. 23, figg. 8-12, P. sororia, note on, p. 817, pi. 23, fig. 3, from 
Australian sands, Jensen (199). 
t P. lucida, p. 51, fig. 50, P. translucida , p. 52, fig. 51, P. sulcata , p. 52, 
fig. 52, occurrence and notes (figg. from d’Orbigny), Fornasini (146). 
Polystomella hedleyi n. sp., diagnosed, p. 828, pi. 23, fig. 14, P. macella 
(perhaps n. sp.), p. 817, pi. 23, fig. 4, from Australian sands, note on, 
Jensen (199). 
tP. angularis , p. 12, pi. 3, fig. 7, P. gaimardi , p. 13, pi. 3, fig. 8, P. lesson f, 
p. 13, pi. 3, fig. 9, P. oceanensis , p. 13, pi. 3, fig. 10, P. umbilicata , p. 13, 
pi. 3, fig. 11, P. burdigalensis , p. 13, pi. 3, fig. 12, d’Orbigny ’s forms and 
figures, interpreted and notes on, Fornasini (147) ; P. aryptostoma , 
Oligocene, Heppenheim, notes on, Steuer (474), p. 26, pi. 8, figg. 7-9. 
t Porocystis pruniformis , Cragin, thought to be, not a Poiyzoan, hut a 
gigantic monothalamous Foraminiferan, Jarvis (194) pp. 388-390, 
6 text-figg. 
