CATALOG OF FOSSIL FISHES IN THE CARNEGIE MUSEUM Sol 
one may consult a contribution by the present writer published in the Bulletin 
of the Museum of Comparative Zodlogy for June, 1904 (Vol. XLVI, No. alt 
will be sufficient merely to indicate here the names of the principal contributors 
to this special literature since the time of Louis Agassiz. These are, in chrono- 
logical order, Jacob Heckel, Rudolf Kner, Franz Steindachner, Raffacle Molin, 
Abramo Massalongo, Paolo Lioy, Achille de Zigno, Francesco Bassani, Wladislaw 
Szajnocha, Carl Gorganovi¢-Kramberger, Otto Jackel, A. Smith Woodward, and 
Rudolf Cramer. 
In conclusion it is proper to remark that the writer has taken the liberty of 
reproducing under each species the references to the literature given by Dr. A. S. 
Woodward in his Catalogue of the Fossil Fishes in the British Museum, supple- 
menting the same in some cases by citations from more recent papers. 
SYSTEMATIC CATALOG. 
HLASMOBRANCHII. 
Considering the abundance and excellent state of preservation of fossil fishes 
in the Upper Eocene limestone of Monte Bolca, the relative paucity and lack of 
variety displayed by cartilaginous forms— sharks and rays— are surprising features. 
Detached hard parts, such as teeth, dermal fin-spines, and shagreen scales are 
extremely infrequent, and complete skeletons of Lamnide and other sharks prob- 
ably are not represented in the museums of the world by more than a dozen speci- 
mens. On the other hand, rays are represented by a large number of species and 
individuals. Of these the commoner form, and at the same time the most exqui- 
sitely preserved, is the sting-ray first described by Volta as Raja muricata and 
renamed Trygon gazzole by Agassiz. The Carnegie Museum is fortunate in having 
an excellent example of this species, as noted below, and also an admirable cast 
of Carcharias (Scoliodon) cuviert taken from perhaps the most perfect example yet 
discovered, the original of which is preserved in Bologna. 
The following is a list of all Elasmobranch species at present known to occur 
in the Eocene fauna of Monte Bolea: 
1. Rhinobatus zignii (Heckel). 
. Rhinobatus primevus Zigno. 
. Platyrhina bolcensis (Heckel). 
. Platyrhina egertoni Zigno. 
. Platyrhina gigantea (Blainville). 
. Narcine molini Jackel. . 
. Trygon muricatus (Volta). 
. Trygon zignit (Molin). 
ON of w bd 
