174 Reviews—Chev. Jervis’s Treasures of Italy. 
because he considered it to be the same genus as Pterodactylus, and 
this was his only reason for rejecting the name. 
Zittel’s words are: “Die Gattung Ornithocephalus (Sommering) ” 
wird von Seeley folgendermaassen characterisirt : ‘ Ornithocephalus. 
—The anterior nares are entirely separated from the middle holes 
of the head, both being small and the latter exceedingly small. 
The head is short. The neck is short. The large ischium appears 
to be excluded from the acetabulum, and the ilium appears to extend 
less far forward than in Pterodactylus.’ Diese Diagnose stiitzt sich 
lediglich auf die ungenaue Abbildung Sdmmering’s. Hs bedarf 
nur eines Blickes auf Taf. xii. fig. 8 [in Zittel’s work], sowie auf 
die obigen Bemerkungen um sich zu tberzeugen, dass die fur die 
Gattung Ornithocephalus angegebenen Merkmale theils am Original 
garnicht vorhanden sind, theils ihre Erklirung in dem Erhaltungs- 
zustand finden. Ornithocephalus, Sommering,' fallt somit, wie schon 
alle friheren Autoren annahmen, unter die Synonymik von Pterodac- 
tylus.” 
If “ Ornithocephalus brevirostris, Sommering,” is different from 
Pterodactylus, the name Ornithocephalus, restricted by Seeley to this 
species, has to stand, and not Péenodracon, Lydekker. 
The genus Ornithopterus (v. Meyer, 1838), of which Huxley says, 
“J am much inclined to suspect that the fossil upon which the genus 
Ornithopterus has been founded appertains to a true bird,” is still 
considered by Newton as a distinct genus of the Pterodactyls. Prof. 
Huxley and Newton have overlooked the fact that H. v. Meyer 
retracted this genus in 1860, in his great work, “‘ Reptilien aus dem 
lithographischen Schiefer des Jura.” 
H. v. Meyer,’ after the examination of the original specimen, 
explained that his former statement was incorrect, and that his 
Ornithopterus could not be distinguished from Rhamphorhyuchus, and 
was probably identical with Rhamphorhynchus Gemmingi. 
J Sy dah W/ IEE Was 
J.—Tue SuBTeRRANEAN TREASURES OF ItTaLy. (“I Tresori Sotter- 
ranei dell’ Italia,” &., per il Cavaliére Guglielmo Jervis, Con- 
servatore R. Mus. Indust. Ital., F.G.S., &e.) Part IV. Complete 
in itself. The Economic Geology of Italy. 8vo. pages xxxv1 
and 516. With 62 Woodcuts and Lithographs. (EE. Loescher, 
Turin, Florence, and Rome, 1889.) 
i a fourth and last volume of Chevalier Jervis’s valuable work on 
the underground riches of Italy treats of the topographical 
distribution of the stones and marbles useful for building and 
decoration, for architectural ornaments and sculpture; also for 
making lime, cement, mortar, stucco, plaster, etc. Not only are 
particular localities carefully described and often illustrated, but the 
1 Zittel ought to have written Ornithocephalus (Seeley). 
2 Meyer, Hermann v., ‘‘ Reptilien aus dem lithographischen Schiefer des Jura in 
Deutschland und Frankreich.’’ Frankfurt-a. M. 1860, p. 141. 
