BIBLIOGRAPHY. 9 
Hall, James. Natural History of New York, Paleontology, VI, 1887, pi. 61. Figures by 
mistake a species from the Rochester shale and names it Stictopora scitula. 
Nicholson, II. A., and Hinde, G. J. Canadian Journal, new ser., XIV, 1874. They record 
the occurrence of Clathropora frondosa, C. intermedia, and Retepora asperato-striata in 
the Niagara limestone (Rochester shale) at Thorold Ontario, and of Trematopora ostio- 
lata and Fenestella tenuiceps at Niagara River. They also give descriptions and com- 
parisons of Clathropora frondosa and C. intermedia, the latter being a new species. 
Figures of Clathropora intermedia and Trematopora ostiolata are given. 
Nicholson, H. A. Paleontology of the Province of Ontario, 1875, pp. 59, 60. So far as the 
bryozoa of the Rochester shale are concerned, this is a reproduction of the preceding 
work. 
Nicholson, H. A. Geological Survey of Ohio, Paleontology, II, 1875, p. 264, pi. 25, figs. 
11, 1 la. Describes and figures Fenestella nervata n. sp. from the Niagara at Cedarville, 
Ohio. This species has since been recognized in the Rochester shale in New York and 
Ontario. 
Sickles, John M., and Bassler, R. S. Synopsis of American fossil bryozoa. Bull. U. S. 
Geol. Survey No. 173, 1900. They record the literature and synonomy of Rochester 
shale as well as other American fossil bryozoa. 
Ringueberg, E. N. S. New genera and species of fossils from the Niagara shales. Bull. 
Buffalo Soc. Nat. Sci., V. 1886. Describes as new species from Lockport, N. Y., 
Ceramopora orbiculata, Rhinopora curvata, Stomatopora recta, S. parva, and Chtetetcs 
expansus. 
Roemer, Ferd. Lethsea Geognostiea, 1, Lethaea Palaeozoiea, Atlas, 1876, pi. 12, figs. 2a, 2b, 
4a-4c. Reproduces some of Hall's figures of Retepora diffusa Hall, and in the explana- 
tion of the plate applies the new name Pseudohornera diffusa. Figures, as a new 
species from the island of Gotland, Ptilodictya fenestrate, a form very much like 
Clathropora fro ndosa Hall . 
Ulrich, E. O. American Paleozoic bryozoa. Jour. Cincinnati Soc. Nat. Hist, V-VII, 
1882-1884. In discussing Homotrypa some of the characters of Trematopora tuberculosa 
Hall are stated in Vol. V, p. 241. A full description of Callopora elegantula Hall, is 
given on page 250. In Vol. VI, p. 257, he discusses Hall's genus Trematopora and gives 
an amended definition. Hall's species are distributed as follows: Trematopora coales- 
cens=Trematopora,T . solida=Trematopora? , and T. ostiolata— ChUotry pa. On page 259 
he describes Trematopora tuberculosa Hall. In Vol. VII, p. 39, in discussing Coscinium 
Keyserling, he remarks on Hall's genus Clathropora and the type species C. frondosa. 
Pages 43-44 give some of the characters of Lichenalia and the type species L. concen- 
trica, of which he figures a tangential section in PI. Ill, fig. 5. On page 49 he refers to 
his new genus Chilotrypa Hall's Trematopora ostiolata. 
Ulrich, E. O. Paleozoic bryozoa. Geol. Survey Illinois, VIII, 1890. On page 368 the 
genus Diploclema is established and Trematopora sparsa Hall is made one of the types. 
The new genus Stictotrypa is founded (p. 393), with Stictopora similis Hall as the 
genotype, and on page 394, fig. 13, a vertical section of S. similis Hall and tangential 
and vertical sections of &. punctipora Hall are given. On page 399 Drymotrypa n. gen. 
is described, Retopora diffusa. Hall being made the type. Hall's Thamniscus niagarensis 
is referred here. On page 425, in discussing the genus Lioclema, the following of Hall's 
species are referred here: Callopora aspera, C.florida, and C. laminata. On page 463 a 
full description of Ceramopora imbricata, accompanied by figures of the internal struc- 
ture, is given. The genus Diamesopora is discussed on page 467. On page 607, when 
discussing Thamniscus, Hornera dichotoma Hall is referred here, while Thamniscus 
niagarensis Hall belongs to Drymotrypa. 
