210 



KEPORT OF NATIOISTAL MUSEUM, 1919. 



Vaughan, Thomas Wayland — Contd. 

 faunas in the hope that informa- 

 tion might be obtained on their 

 evolution; (3) consideration of the 

 ecology of the faunas for light 

 which might be thrown on the con- 

 ditions, especially those of depth 

 and temperature, under which the 

 sediments in which they are em- 

 bedded were deposited. In order to 

 understand properly the fossil 

 faunas of the areas mentioned it 

 was necessary to study those now 

 living in the western Atlantic, the 

 Gulf of Mexico, and the Caribbean 

 Sea, and to further extend sys- 

 tematic knowledge of living coral 

 faunas and study critically the re- 

 lations of the faunas to environ- 

 mental factors. The present paper 

 presents a critical discussion of 

 the geographic distribution of the 

 species of corals from Murray, Co- 

 cos-Keeling, and Fanning Islands, 

 with a detailed annotated system- 

 atic discussion of the species 

 found, including the description of 

 12 new species, 1 new subspecies, 

 and 1 new genus. Based partly on 

 Museum material. 



Some shoal-water bottom 



samples from Murray Island, Aus- 

 tralia, and comparisons of them 

 with samples from Florida and the 

 Bahamas. 



Papers from the Dept. of 

 Marine Biology, of the 

 Carnegie Inst, of Wash- 

 ington, vol. 9, pub. no. 

 213, Aug. 30, 1918, pp. 

 239-288, pis. 94-95. 

 The present paper is a prelimin- 

 ary contribution to the study of 

 the marine bottom deposits in three 

 coral reef areas, namely, Murray 

 Island, Australia, the Bahamas, 

 southern Florida. 



The temperature of the Flor- 



ida coral reef tract. 



Papers from the Dept. of 

 Marine Biology, of the 

 Carnegie Inst, of Wash- 

 ington, vol. 9, pub. no. 

 213, Aug. 30, 1918, pp. 

 319-339, with text figs. 

 The temperature data herewith 

 presented were assembled prima- 

 rily for their bearing on the effect 

 temperature exerts on the bathy- 

 metric and geographic distribution 

 of coral reefa. 



Vaughan, Thomas Wayland. The 

 biologic character and geologic cor- 

 relation of the sedimentary forma- 

 tions of Panama in their relation to 

 the geologic history of Central 

 America and the "West Indies. 



Bull. V. 8. Nat. Mus., no. 

 103, May 19, 1919, pp. 

 547-612, 2 insets. 

 Presents biologic summaries for 

 each of the formations for which 

 paleontologic data are available, 

 with brief discussions of the geo- 

 logic age ; geologic correlation of 

 the formations and the distribu- 

 tion of their age equivalents in 

 Central America, the West Indies, 

 and the southeastern United 

 States ; and an outline of the 

 paleogeography of middle America. 



Walcott, Charles D. Cambrian geol- 

 ogy and paleontology, IV, No. 4. Ap- 

 pendages of trilobites. 



Smithsonian Misc. Colls., 

 vol. 67, no. 4, Dec., 1918, 

 pp. 115-216, pis. 14-42, 

 figs. 1-3. 

 The author summarizes his in- 

 vestigations of the appendages of 

 trilobites during the past 45 years, 

 a research undertaken in pursuance 

 of a promise made to Prof. Louis 

 Agassiz in 1873. His summary of 

 1881 is reviewed and corrected, to- 

 gether with later papers discussing 

 his various discoveries in this sub- 

 ject. A number of species of trilo- 

 bites with appendages are described 

 and figured. Some conclusions 

 drawn are that the trilobite's ap- 

 pendages show it to have been a 

 marine crustacean far more highly 

 developed than would have seemed 

 possible in a period so infinitely re- 

 mote. 



Wetmork, Alexander. Birds observed 



near Minco, central Oklahoma. 



Wilson Bull., vol. 30, no. 1, 

 Mar., 1918, pp. 2-10 ; No. 

 2, June, 1918, pp. 56-61. 

 Notes on 62 species and sub- 

 species. 



The birds of Desecheo Island, 



Porto Rico. 



Au1(, vol. 35, no. 3, July, 

 1918, pp. 333-340. 

 An account of this island and its 

 bird life ; 11 species are recorded. 



