cheilostoma. Bry . 15 
Sci. Tunis 1904 ; \M. concatenata , Patagonia, Canu, Mem. Soc. geol. 
France, Pal. xii (3), p. 6, pi. i, figg. 5, 6, 7. 
\M. oblongula, p. 407, pi. cx, figg. 2-5, M. fossulifera , p. 408, fig. 1, 
M. caminosa , p. 409, pi. cxi, figg. 3 & 4, M. germana , p. 410, figg. 8 & 9, 
M. parvula, figg. 1 & 2, M. bifoliata, p. 411, pi. cxii, figg. 2-4, M. nitidula, 
p. 412, fig. 1, M. fistula , p. 413, fig. 5, Maryland, Ulrich & Bassler, 
Maryland geol. Surv. 1904 ; t M. varians , p. 14, pi. xxxiii, fig. 3, 
M. excavata , p. 15, fig. 4, M. quadrata , p. 16, fig. 12, M. fiicki , p. 16, 
figg. 13-15, M. bioculata , p. 17, pi. xxxiv, figg. 16 & 17, M. rotundicella , 
p. 18, fig. 19, Tunis, Canu, Explor. Sci. Tunis 1904 ; \M. laevigata , 
M. fiabellata, Patagonia, Canu, Mem. Soc. geol. France xii, pp. 6 & 7, 
pi. i, figg. 3, 4 & 8 ; M. longispina , Atlantic Ocean, sub-antartic region, 
Calvet, Bull. Soc. zool. France xxix, 3, p. 52, n. spp. 
Membraniporella magellanica , Calvet, Ergebn. Hamburg. Magalhaen. 
p. 15, pi. i, fig. 4. 
iM. magellanica , Atlantic Ocean, sub-antarctic region, Calvet, Bull. Soc. 
zool. France xxix, 3, p. 53, n. sp. 
t Micropora crassopora , Egypt, Canu, Bull. Inst. Egypt iv, p. 227, pi. ii, 
fig. 8 ; \M. coriacea , Patagonia, Canu, Mem. Soc. geol. France, Pal. 
xii (3), p. 10, pi. i, fig. 15. 
t Microporella malusi, Patagonia, Canu, t. c. p. 11, pi. iii, fig. 27 ; M. malusii , 
M. divaricata, Antartic, Waters, Exp. Antarct. Beige 1904, p. 42, pi. 
iii, fig. 4, p. 46, pi. iii, fig. 1 ; t M. violacea , M. ciliata , pp. 21 & 22, pi. 
xxxiv, figg. 25, 26 & 27, Tunis, Canu, Explor. Sci. Tunis 1904. 
til/, fallax , M. divaricata , Patagonia, Canu, Mem. Soc. geol. France, Pal. 
xii (3), p. 11, pi. ii, figg. 24 & 25 ; t M. prceciliata, p. 415, pi. cx, fig. 6, 
pi. cxiii, fig. 3, M. infiata , p. 416, pi. cx, fig. 7, MA bifoliata , p. 417, 
pi. cxiii, figg. 6-8, Maryland, Ulrich & Bassler, Maryland geol. Surv. 
1904, n. spp. 
Mucronella centrota , Lord Howe Island, Maplestone, P. R. Soc. Victoria 
xvii, p. 389, pi. xxix, fig. 9, n. sp. 
f Onychocella angulosa , 0. magniaperta , pp. 18 & 19, pi. xxxiv, figg. 20-22, 
Tunis, Canu, Explor. Sci. Tunis 1904 ; 1 0. boulei , Egypt, Canu, Bull. 
Inst. Egypt iv, 4, p. 223, fig. 1. 
Osthimosia signata , Antarctic, Waters, Exp. Antarct. Beige 1904, p. 73, 
pi. vii, fig. 4. 
t Palmicellaria convoluta , p. 427, pi. cxvi, figg. 2-4, P. punctata , p. 428, pi. 
cxvi, fig. 1, Maryland, Ulrich & Bassler, Maryland geol. Surv. 1904, 
n. spp. 
t Phylactellal orbiculata , P. ventricosa , Tunis, Canu, Explor. Sci. Tunis 1904, 
pp. 26 & 27, pi. xxxv, figg. 37 & 38, n. spp. 
Porella rouzaudi , Calvet, Ergebn. Hamburg. Magalhaen. p. 30, pi. ii, 
fig. 6 ; f P. escharella , Patagonia, Canu, Mem. Soc. geol. France, Pal. 
xii (3), p. 17, pi. iv, fig. 53. 
P. rouzaudi, Atlantic Ocean, sub-antartic region, Calvet, Bull. Soc. zool. 
France xxix, 3, p. 57, n. sp. 
t Poricellaj n. gen. for P. magonnica n. sp., Tunis, Canu, Explor. Sci. Tunis 
1904, p. 28, pi. xxxv, fig. 43. 
t Retepora prisca , Smycka, Vestnik. Klub. Prostejove vii, p. 61. 
tA. quadripunctata , Patagonia, Canu, Mem. Soc. geol. France, Pal. xii (3), 
p. 15, pi. iv, fig. 54; ill doverensis , Maryland, Ulrich & Bassler, 
Maryland geol. Surv. 1904, p. 422, pi. cxi, figg. 5-7, pi. cxv, figg. 1-5 : 
n. spp. 
t Rhainpliostoniella perforata , Patagonia, Canu, Mem. Soc. geol. France, Pal. 
xii (3), p. 15, pi. iii, fig. 39, n. sp. 
Schizoporella simplex, S. hosteensis, S. eatoni , pp. 51 & 52, pi. iii, figg. 
6, 11 & 10, Antarctic, W aters, Exp. Antarct. Beige 1904; S.isabellianal 
Bermudas, Verrill, Tr. Connect. Ac. x (2), p. 593, fig. 5 ; t£. unicornis , 
