36 GEOLOGICAL MEMOIRS. 



completely ossified ; the rotula is perfectly recognizable under the 

 form of a small Avedge-like bone. Both pairs of extremities are 

 pentadactylous. The number of the anterior phalanges cannot be 

 exactly stated ; the number of the posterior phalanges (without the 

 metatarsal bones, but with the imperfectly developed ungular pha- 

 lanx) is represented by the following series : 2, 3, 4, 5, 3, beginning 

 with the hallux ; so that the fifth finger has one phalanx less than 

 those of the recent Lacertians and the analogous forms from the 

 lithographic stone. 



The bones of the Comen specimens are changed into a substance 

 of metalloid aspect, like steel or oxydated manganese ; and the 

 matrix is uncommonly heavy : both deserve to be submitted to che- 

 mical analysis. The hollow stripes on the surface of the bones seem 

 to be indicative of the commencement of an imperfect crystallization. 



[Count M.] 



On some New Tertiary Fishes. By M. Steindacher. 



[Proceed. Imp. Acad. Vienna, March 22, I860.] 



M. Steindacher has determined seven new species of fishes be- 

 longing to the Tertiary period. Five' of them (Gobius Viennensis, 

 G. clotus, G. oblongus, Glypea elongata, and CI. melettceformis) have 

 been found in the " Tegel " of Hernal (N".W. of Vienna) ; a sixth 

 (Phycis Suessi), of a genus of which hitherto no fossil representative 

 was known, comes from the " Tegel " of Inzersdorf (S. of Vienna) ; 

 the seventh is a Syngnathus from Badoboj (Croatia), remarkable for 

 being the first known fossil representative of a still existing genus 

 of Lophobranchians, all the individuals of this family hitherto found 

 fossilized belonging, without exception, to genera now extinct. 



[Count M.] 



On some Eruptive Phenomena seen in the Dachstein Mountains. 

 By Prof. E. Suess. 

 [Proceed. Imp. Acad. Vienna, April 12, I860.] 

 Eruptive phenomena have been observed by Prof. Suess in the 

 Dachstein mountain -group (Upper Austria), which is composed of 

 a great calcareous " massif," with steep cliffs all around, intersected 

 by a great number of faults. In these faults and on the elevated 

 portions of the " massif " are found agglomerations of rolled frag- 

 ments, originating from rocks of more ancient date, on which the 

 calcareous mass rests. Many of these fragments have a particularly 

 bright and polished surface ; some of them have penetrated into the 

 narrowest clefts of the limestone ; others have been broken by violent 

 compression, or have, as it were, forced their way into the sur- 

 rounding limestone. The rolled fragments of the tops belong exclu- 

 sively to the " Werfen Slate " or to the Greywacke. Among those 

 in the Koppenbruller cave, at the foot of the mountain-group, crystal- 

 line rocks prevail. These last must have undergone a still more 

 considerable upheaval than those on the top, which may have been 

 upheaved to an elevation of nearly 10,000 feet. [Count M.] 



