134 AMEEICAlSr FOSSIL BRYOZOA. [BULL,17i;. 



Synocladia biserialis Swallow, Ptilodictya (Stictopora) serrata Meek, Ptilodictya 

 (Stictopora) carbonaria Meek. 



Meek, F, B., and Worthen, A. H. Paleontology of Illinois. Descrip- 

 tions of invertebrates. (Geological Survey of Illinois, VI, 1875, 

 pp. 491-532, pis. xxiii-xxxii.) 



Contains description of one bryozoan, Chaetetes ? carbonaria Worthen. 



Miller, S. A. Some new species of fossils from the Cincinnati group 

 and remarks upon some described forms. (Cincinnati Quarterly 

 Journal Science, II, 1875, pp. 349-355.) 

 The writer gives descriptions of Calamopora fibrosa Goldfuss and Monticulipora 



dalei Milne-Edwards and Haime, the latter in reality Monticulipora raniosa d'Orbigny. 



* Nicholson, H. AUeyne. Report upon the Paleontology of the Prov- 



ince of Ontario, Toronto, 1875. 96 pp., 4 pis. 



Some thirty-two species of bryozoa are described, only part for the first time, 

 mainly from the Trenton, Hudson River (Cincinnati), Clinton and Niagara forma- 

 tions, referred to the genera Chsetetes, Ptilodictya, Retepora, Helopora, Rhinopora, 

 Phsenopora, Clathropora, Callopora, Ceramopora; also the new genus Heterodictya 

 with one new species, H. gigantea. 



* Nicholson, H. AUeyne. Descriptions of species of Hippothoa and 



Alecto from the Lower Silurian rocks of Ohio, with a description 

 of Aulopora arachnoidea Hall. (Ann. Mag. Nat. Hist., ser. 4, XV, 

 1875, pp. 123-127, pi. xi.) 

 Describes from the Cincinnati group of Ohio Hippothoa inflata (Hall), Alecto 

 auloporoides n. sp., frondosa James, confusa n. sp., Aulopora arachnoidea Hall. 



* Nicholson, H. AUeyne. Descriptions of new species of Polyzoa 



from the Lower and Upper Silurian rocks of North America. 



(Ann. Mag. Nat. Hist., ser. 4, XV, 1875, pp. 177-184, pi. xiv.) 

 Describes from the Cincinnati group Ptilodictya falciformis n. sp., emacerata n. sp., 

 flagellum n. sp., ? arctipora n. sp., fenestelliformis n. sp., Ceramopora ohioensis n. sp., 

 and from the Niagara Fenestella nervata n. sp. 



* Nicholson, H. AUeyne. Descriptions of new species and of a new 



genus of Polyzoa from the Paleozoic rocks of North America. 



(Geol. Mag., new ser., II, 1875, pp. 33-38, pi. ii.) 

 Describes Heterodictya and H. gigantea, Ptilodictya cosciniformis, Fenestella 

 Davidsoni, Ceramopora Huronensis, Retepora Trentonensis. These are also de- 

 scribed in the Report upon the Paleontology of Ontario, 1875. 



*Nicholson, H. AUeyne. On some of the massive forms of Chsetetes 

 from the Lower Silurian. (Geol. Mag., new ser., II, 1875, pp. 

 175-177.) 

 Describes Chfetetes petropolitanus Pander and Chsetetes undulatus Nicholson. 



*Nicholson, H. AUeyne. Description of the corals of the Silurian 

 and Devonian systems. (Paleontology of Ohio, II, 1875, pp. 

 181-242, pis. xxi, xxii.) 

 This paper contains descriptions of twenty-five species of Chsetetes, two of Constel- 



laria and Aulopora arachnoidea Hall. 



