General Notes. 101 



Corrections to the nomenclature of the Eocene fossil corals of 



the United States. 



Since the publication of my Eocene and Lower Oligocene coral faunas 

 of the United States in 1900, as Monograph XXXIX of the U. S. Geologi- 

 cal Survey, I find it necessary to make several changes in the names 

 there used. 



Aldrichiella nom. nov. for genus Aldrichia Vaughan (op. cit. p. 70). 

 Professor T. D. A. Cockerell has called my attention to the fact that 

 Coquilett applied this name in 189-4* to a genus of Bombylid flies. Type 

 species of Aldrichiella , A. elegans Vaughan. 



Endopachys Lonsdale, 1845. My genus Rhectopsammia (op. cit. p. 183, 

 pi. XXI, figs. 11-13) was based on the young of Endopachys maclurei 

 ^ea), but I discovered my mistake after the publication of the Mono- 

 graph. The genus Endopachys has been characterized as showing no 

 evidence of attachment. My Rhectopsammia is the attached young of 

 Endopachys. These young individuals often attain a height of 6 mm., 

 then the upper portion of the corallum becomes separated from the 

 pedicel. Indications of the detachment scar may frequently be seen 

 quite late in the life of some specimens. Usually it is ultimately com- 

 pletely obliberated by the deposition of calcareous substance over it by 

 the edge zone of the coral extending downward, enveloping the base. 



It may be well to call attention to an apparent duplication of the name 

 Paracyathus granulosus. On page 107, pi. VIII, figs. 15 to 15b, in my 

 memoir already cited, I have described and figured a species from Woods 

 Bluff, Alabama, under the name given above. Professor Yerrill in the 

 Kept. U. S. Fish Com., Pt. XI, in the Vol. for 1883, pub. 1885, p. 535. 

 uses the name Paracyathus granulosus, but the name is not accompanied 

 by any description. I have made a careful search for a published de- 

 scription of the species referred to, but have not been able to find any. 

 I have written to Professor Verrill for information regarding the matter. 

 He says that some noraina nuda escaped his attention in preparing the 

 lists for the Fish Commission, although he endeavored to eliminate all 

 of them. Therefore my name Paracyathus granulosus will stand, and 

 when Professor Yerrill publishes the description of his coral it will be 

 necessary for him to give it another name. — T. Wayland Vaughan. 



Note on the generic name Hylophilus. 



The presently accepted rules of nomenclature render necessary the re- 

 jection of the generic term Hylophilus for the group of Vireonidaa to 

 which it has been commonly applied. This name Hylophilus (Tem- 

 minck, PI. Col., 1823, pi. 173, fig. 2) is preoccupied by HylopJiila Hiibner 

 (Yerz. Schmett., 1816, p. 39(3), used for a genus of Lepidoptera. The 



*Trans. Amer. Entomolog. Soc, Yol. XXI, p. 93, 1S94. 



