402 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



Reis 1 proposed the name Heterastraea for the genus here named 

 Antiguastrea; but, as R. F. Tomes had used Heterastraea for a genus 

 of English Liassic corals in 1888, 2 Reis's name can not stand. Reis's 

 account of the columella in his description of Heterastraea is contra- 

 dictory. Regarding Heterastraea tenuilainellosa (Giimbel) Reis, he 

 says, "zeigen ein verlangertes blattartiges bis papilloses Saulchen." 

 The columella in that species, therefore, is lamellate. 



This genus of. corals is important in its bearing on the correllation 

 of American and European Tertiary formations. At the end of his 

 table of the corals from the Reiter Schichten, Reis says: 3 "Aus 

 diesem Tabelle geht unzweifclhaft hervor, dass erstens die Reiter 

 Korallenlager und die vom Hallthurm mit denen von Haering 

 ganzlich stimmen, also keinen tieferem Horizont angehoren konnen 

 und dass zweitens dieser Horizont sowohl durch Haeringer Schichten 

 als auch durch die deutlichsten Beziehungen zu den unter- bis mittel 

 oligocanen Korallenlagern des Vicentins als solcher festgestellt ist." 

 Reis reports species of Heterastraea from Reit, Castelgomberto, and 

 Crosara. 



There is in the United States National Museum (No. 155186) a 

 specimen of Heterastraea michelottina (Catullo) Reis, received from 

 Prof. K. A. von Zittel. This specimen has a distinct, short, thick, 

 lamellar columella. It so closely resembles Antiguastrea cellulosa 

 that specific distinction is difficult, perhaps even doubtful. Isastrea 

 elegans Reuss is referable to Antiguastrea. It is described after Anti- 

 guastrea cellulosa (see p. 409, pi. 102, figs.' 1, la). Astrea alveolaris 

 Catullo 4 also belongs to Antiguastrea. Notes on it follow those on 

 A. elegans. 



ANTIGUASTREA CELLULOSA (Duncan). 



Plate 98, figs. 3, 3a, 4, 4a; plate 99, figs. 1, la, 2, 2a, 3, 3a; plate 100, figs. 1, 2, 3, 3a. 



4, 4a; plate 101, figs. 2, 2a. 



1863. Astraea cellulosa Duncan, Geol. Soc. London Quart. Journ., vol. 19, pp. 



417, 418, pi. 13, fig. 10. 

 1863. Isastraea turbinata Duncan, Geol. Soc. London Quart. Journ., vol. 19, p. 



423, pi. 14, figs, la-lc. 

 1866. Heliastraea cellulosa Duchassaing and Michelotti, Sup. Mem. Corall. 



Antilles, p. 86 (of reprint). 



1866. Isastraea turbinata. Duchassaing and Michelotti, Sup. Mem. Corall. 



Antilles, p. 89 (of reprint). 



1867. Heliastraea cellulosa Duncan, Geol. Soc. London Quart. Journ., vol. 24, p. 24. 

 1867. Isastraea turbinata, Duncan, Geol. Soc. London Quart. Journ., vol. 24, p. 25. 

 1870. Heliastraea cellulosa Duchassaing, Rev. Zooph. et Spong. Antilles, p. 30. 



1 Korallen der Reiter Schichten, Bayerisch. geognost. Landesuntersuch, geognost. Jahreshefte, Jahrg. 2, 

 pp. 150-152, 18S9. 

 s Geol. Mag., Dec. 3, vol. 5, pp. 207-218, pi. 7, 1888. 



3 Korallen der Reiter Schichten, p. "PI. 



4 Dei terreni di Sedimento superiore delle Venezie, c dei fossiii byrozoari, antozoari, espongiari. ai quali 

 dannorieetto, p. 5.', pi. 11, fig. 1. Padovn, 1856. 



