ECTOPROOTA. 
Bry. 5 
Trepostomata. 
Bythotrypa , n. g., type t Fistulipora laxata, Ulrich ; Ulrich (23), p. 324. 
Ceramophylla , n. g., type \C. frondosa , n.sp., Lower Silurian, Minnesota ; 
Ulrich (23), p. 331. 
Erulotrypa, n. g., p. 264, type t E. mutabilis , n. sp., p. 265, Lower 
Silurian, Minnesota ; Ulrich (23). 
77 emiphragma, n. g., type iBatostoma irrasum, Ulrich ; Ulrich (23), 
p. 299. 
Mcaotrypa , n. g., type t Diplotrypa bifida, Ulrich ; Ulrich (23), p. 257. 
Stromatotnypa , n. g., p. 301, type tS. ovata , n. sp., p. 302, Lower Silurian, 
Minnesota ; Ulrich (23). 
Cryptostomata. 
f Cycloporina, n. g. of Fenestellidce, type Fenestella hemicycla ; Simpson, 
Rep. N. York Mus. xlvii, p. 905, figg., and 13th Ann. Kept. State 
Geologist for 1893, ii, p. 711, figg. 
Fenestellidce , on Carboniferous, especially Irish ; Cor,E (2). 
f Lyroporella, n. g. of Fenestellidce ; Simpson, Rep. N. York Mus. xlvii, 
p. 918, and 13th Ann. Ropt. State Geologist for 1893, ii, p. 724. 
f Lyroporina, n. g. of Fenestellidce ; Simpson, t. c. p. 917, and t. c. p. 723. 
f Reteporella, n. g. of Fenestellidce ; Simpson, t. c. p. 896, and t. c. p. 702. 
Rhinidictyonidce , n. n. for Stictoporidce ; Ulrich (23), p. 124. 
f Tectuliporella, n. g. of Fenestellidce, type Unitnjpa consimilis ; Simpson, 
Rep. N. York Mus. xlvii, p. 909, and 13th Ann. Rept. State Geologist 
for 1893, ii, p. 715. 
Trigonodictya , n. g., type iPachydictya conciliatrix , Ulrich ; Ulrich (23), 
p. 160. 
Chilostomata. 
Bigemellaria , n. g., for t B. pednnculata, n. sp., Tertiary, Victoria ; Mac- 
Gilltvray, Tr. R. Soc. Victoria, iv, p. 7, figg. 
Bitectipora , n. g., p. 106, undefined by MacGillivray, for t/?. lineata , 
(McG. MS.) n. sp., p. 136, Tertiary, Victoria ; described by Hall in 
MacGillivray, t. c. figg. 
Bulbipora, n. g., for 47?. areolata, n. sp., Tertiary, Victoria; MacGilli- 
vray, t. c. p. 79, figg. 
Calloporina , n. subg. of Microporella , type Cellepora decor ata, Iieuss ; 
Neviani, Palaeontogr. Ital. i, p. 107. 
Caloporella , n. g., for Busk’s Catenicelhe vittatm and new species ; Mac- 
Gillivray, Tr. R. Soo. Viotoria, iv, p. 18, figg. 
Corbulipora , n. g., for +C. onuita , n. sp., Tertiary, Victoria ; MacGilli- 
vray, t. c. p. 60, figg. 
Costazia , n. g., for t Cellepora costazii , Sav. ; Neviani, Boll. Soc. Rom. 
Zool. iv, p. 239. 
Cticullipora , n. g., for t C. tetrasticha , n. sp , Tertiary, Victoria ; Mac- 
Gillivray, Tr. R. Soc. Victoria, iv, p. 96, figg. 
