Introduction. 
About one year ago Professor Frech. dici me tne honor to ask for 
my help in furthering the progress of the Fossilium Catalogus published 
by W. Junk of Berlhr. Since then I have completed a large work entitled, 
,, Re vision of Paleozoic Stelleroidea,with special reference to North American 
Asteroidea“, which vili be publislied during 1914 by the United States 
National Museum. During the meetings of the Twelfth International 
Geological Congress held at Toronto during the summer of 1913, I apprised 
Professor Frech of the completion of this memoir and of my willingness 
to take out of it ali of the bibliographic references for publication in the 
Fossilium Catalogus. 
The following ,,Catalogue of the Genera and Species of Stelleroidea“ 
treats of ali the species and genera found in the Paleocoic throughout 
the worlcl. My aim has been to make it as complete as possible, and to this 
end ali the available literature at Yale University has been gone over. 
References are made to periodicals mstead of to tities of papers wherever 
possible, since it is believed that this method is the easier for the worker 
to use. The abbreviations are somewhat longer than is usual, because 
such a catalogue vili be used in many lands. Further help with reference 
to the bibliography can be hacl from the gcographical distribution of the 
species, which is at once a guide to the source of the literature. Ali of 
the synonyms, both generic and specific, have been given as determined 
by authors and as more fully presented in the forthcoming memoir; and to 
make this information reaclily accessible the species are grouped under 
their proper genera, and ali are arranged, including synonyms, in one 
alphabetic catalogue. Hence the results of any worker along these lines 
can be quickly found, together with the present status of species and genera. 
The catalogue is preceded by a „Classification of Paleozoic Star- 
fishes“ as worked out in the memoir above cited, so that subsequent workers 
can detsrmine for themselves the rclationship of any form they wish to 
study. To further facilitate the finding of the rclationship of any genus, 
the generic names in the catalogue proper are followed by symbols which 
indicate to which subclass they belong. 
In regard to the genera, the first important question to be answered 
is : What species is the type of the genus ? In ali cases these type species are 
given in the catalogue, for the genera in good standing and for their syno- 
nyms as well. On the other hand, for species, it is always of importance to 
know the geologic horizon and geographic occurrence of the form, and 
this information is also supplied. 
The catalogue has been brought to its present state of completcness, 
through the search of the literature and its correct citation, by Miss Clara 
Mac LeYene, to whom I am under great obligations. My further thanks 
are due to the firm of W. Junk for their care in the printing. 
New Haven, Conn., November 20, 1913. 
Charles Schuchert. 
Professor of Paleontology in Yale University. 
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