INVERTEBRATA. 305 



marine deposits in question, the title, date and place of description, 

 geological position, and geographical distribution of each species being 

 given. This list includes the names of 520 kinds of " Poly thai amia," 498 

 of " Polygastrica,'' and 326 species of Fohjcystina, the remaining being 

 " Phytolitharien," " Geolithien," and " Zoolithien," with a few remains 

 of Moliusks, Annelidcs, Entomostraca, Bryozoa, and plants. The next 

 part (pp. 106-115) deals with the " Barbadoes earth," and is illustrated 

 by 30 plates. A list of 367 species found in this deposit accompanies this 

 section. The next part treats briefly of an organic deposit from Hillaby 

 Mountain in Barbadoes ; and this is followed by an account of the 

 deposits containing Fohjci/stina in the Nicobar Islands, with a list of 

 156 species. The remaining sections deal with the hard chalk of 

 Antrim, and other organic deposits ; but the most important is one 

 treating of the microscopic organisms found in freshwater deposits, 

 accompanied by full lists (pp. 169-225) of all the forms recognized 

 therein by the author. In the explanations accompanying the plates 

 illustrative of the organisms of the Barbadoes earth, the following new 

 species are described — Planidina mica^ Botalia ? Barhadensis, Ac- 

 tinoliihis ajnculata, A. hexaclados^ A. Nej^timia, A. ornithopus, A, 

 spinosa^ A. tornata, A. trijida, FlacoliiJiis ocellata, lihahdolitJiis falx^ 

 K. fungillus, JR. ingens, R. j^ipa, R. sceptrum, R. serra, R. tortuosa, R. 

 umbracidum, Stephanolithis annularis, S. nodosa, S. spinescens, Chlami- 

 dophora (n. gen.) Chilensis, Flustrella macropora, Halicalyptra setosa, 

 Litliochytris Barhadensis, Lychnocanium faldferum, Stylodictya hispi- 

 ralis, and S. Forhesii. H. A. N. 



Etheridge, Eobert, Jun. Description of a New species of the 



Genus Hemipatayus, Desor, from the Tertiary Kocks of Victoria, 



Australia ; with Notes on some previously described Species from 



South Australia, Quart. Joum. Geol. Soc, vol, xxxi. pp. 444-450, 



pi. xxi. 



Gives a brief account of the bibliography of Australian Tertiary Echino- 



dermata ; describes Hemipatagus Woodsi, a new species from the Upper 



Tertiary beds of Mordialloc, Victoria. Gives short notes on a few 



previously described species; and a synopsis of Australian Tertiary 



Echinodermata. B. E., Jun. 



Observations on some Carboniferous Polyzoa. Proc. Geol, 



Assoc, vol. iv. no. 2, pp. 116-122 ; plate. 

 Describes the genera Synocladia, Folypora and Thamnweus ; notes 

 the number of forms recognized as common to the Carboniferous and 

 Permian. Describes Synocladia histrialis, var. carhonaria, from 

 several localities in the L. and U. Carboniferous Limestone Groups of 

 Scotland, with 6 drawings. W. T. 



On some undcscribed Carboniferous Fossils. Oeol. Mag, 



dec. ii. vol. ii. pp. 241-245, pi. viii. [See also p. 278.] 

 Describes and figures Modiola litlwdomoides, a now bivalve from the 

 L. Carboniferous Rocks of England and Scotland. 

 1875. X 



