^0.1.] BIBLIOGEAPHY OF INVEETEBRATE PALEONTOLOGY. 145 



Emmons, Ebenezer. Manual of Geology. 297 pp. 8vo. 1860. 

 Contains many woodcut illustrations. 



Ford, S. W. Two New Species of Primordial Fossils. < Am. Journ. Sci., vol. xv, 3cl 

 ser., pp. 124-127, 1 woodcut. 1878. 

 Genus Protocyathus. 



Ford, S. "W. Note ou Lingulella ccelata. < Am. Journ. Sci.,xo\. xv, 3d ser., pp. 127- 

 129. 1878. 



Ford, S. W. Note on tlie Developement of Olenellus asaphoides. < Am. Journ. Sci., 

 vol. XV, 3d ser., pp. 129,130. 1878. 



Ford, S. W. On Certain Forms of Bracliiopoda occurring in tlic Swedish Primordial. 

 <[ Am. Journ. Sci. , vol. xv, 3d ser. , pp. 364-366. 1878. 



Comparison is made of the opercula of Hyolithes of the Troy, ZST. T., Primordial rocks, with the 

 valves of Acrothcle of Linnarsson from the Swedish Primordial. 



Gabb, William M. On the Topography of Santo Domingo. < Trans. Am. Phil. Soc. 

 PMIa., vol. XV, pp. 49-259. 1873. 



Chaptei' XIII, comprising pp. 200-259, is devoted to the paleontology of the island under the head- 

 ing, "Descriptive Catalogue of the MoUusca." Ko statement is made as to the age of tlic numer- 

 ous fossils which ho enumerates and describes, but they are apparently all Tertiary. 



Genera Planorbella, Motulella, Glyphostoma, Eetracheliza, Plochelcea, lopsis, Orthaulax, Dole- 

 phanes, Cylichnclla, and Bothrocorhula. 



Gabb, 'William M. Description of a Collection of Fossils made by Doctor Eaimondi 

 in Peru. <^ Journ. Acad. Nat. Sci.,\o\. viii, pp. 263-336, 9 plates. 1877. 



Tertiary and Mesozoic. — Genera Perinconatica and Petropoma. — To these descriptions is added 

 a Notice of a few Carboniferous Fossils, a Bibliography of Soutli American Paleontology, and a 

 Synopsis of South American Paleontology. 



Grote, A. R., and W. H. Pitt. New Specimen from the Water-lime Grouj) at Buiialo, 

 N. Y. < Proc. Am. Asso. Adr. Sci. , vol. xxvi , pp. 300-302, 1 woodcut. 1878. 



Upper Silurian. — This is a notice of a ramus of Ptcrygotus cum,iningsu, previously described 

 by those authors, which, according to their estimate, indicates a length of Ave feet for the whole 

 animal. 



Gurley, William. Notice of the Discovery of the Position of the Crural Processes in 

 the genus Atrypa. <^Proc. Am. PMl. Soc. P/iite., vol. xvii, pp. 337, 338, and one 

 plate. 1878. 



Mr. Gurley shows that the "loop," which has been regarded as a continuous band connecting 

 the spiral cones of Atrypa, is really divided in the middle by a suture, or even bro.ader parting or 

 hiatus. 



Hall, James. The LouLsville Limestones. Note on the hydraulic beds and associated 

 limestones at the Falls of the Ohio. Pami)hlet. 4to. 16 pj). Advance sheets 

 of vol. V, x^art 2, Paleontology of New York. Nov., 1877. 



In these notes. Prof. Hall gives a tabulated list of tlie fossils found in the Hydraulic, and En- 

 crinal beds at Louisville, and shows that they are propeily the equivalent of the Hamilton Group 

 of New York, and not of the Upper Helderberg, as foimerly supposed. He also sliows in the same 

 memoir that the "Black Slate" of Ohio and adjoining States carries many fossils identical with 

 those of the Genesee Slate of New York, and claims that the supposed two formations are one and 

 continuous. 



Hall, James, and R. P. Whitfield. Notice of three new species of fossil shells from 



the Devonian of Ohio. <^ 23(? Ann. Bep. Begents N. Y. Univ. on Condition of State 



Cabinet, pp. 240, 241. 1873. 

 Hall, James, and R. P. Whitfield. Notice of two new species of fossil shells from 



the Potsdam Sandstone of New York. <23^ Ann. Bep. Begents Univ. on Condition 



of State Cabinet, pp. 241, 242. 1873. 



Genus Palwacmcea.— This article was issued in pamphlet form, together with other matter from 



the same volume, in 1872. See, also, these authors' names in connection with the second entry 



under the head of "Anon." 



Horn, G. H. Notes on some Coleopterous remains from the Bone-cave at Port Ken- 

 nedy, Penu'a. <C^ Trans. Am. Entom. Soc, vol. v, pp. 241-245. 1876. 



Bull. V, 1 10 



