404 
Prof. EH. Suess on Hyalonema in a Fossil State. 
Birds*, but which he believed to be equally applicable to the 
class of Mammals. 
Table of the Distribution of Ruminants. 
ORBIS NOVUS. ORBIS ANTIQUUS, 
Regio Regio Regio Regio Regio Regio 
Neotropica.| Nearctica. || Palzearctica.| | @thiopica. Indica. | Australiana. 
Her @amelidcemescnccnse|secneoronce| tases: Saeceeaien |Camelus 
5 Auchenia 
Py. 2 
Ramelopardalidre) 540) nooesl| aaocogedodsabe (If socdd BiRoA00R Camelopardalis 
3. Antilocapridz.....|.........00. Antilocapra 
Spaoonec6 Adc (Haplocerus) || Antilope | Antilope Antilope 
Baaoonodasbs|| ascoane scacnase Capra Capra Capra 
Ba nG@ese Soaadnance |ropasceneooe Ovis Ovis PBEGASRDE RAB RAE Ovis 
Masioteeaniee Ovibos 
Pemeecakeicts Bos Bos Bos Bos 
Walieeereaecece Tarandus | Tarandus 
DEROCEVIGGE see eesises Cervus ...| Cervus Corvus lscaacecs cade sees Cervus 
sae reaseecee| se Face ae ca balonll |/tieldseescesasl| Seaee ses welecs secs CONBELSE 
Go MOSCHIAH sovececes|cvecscvcsees| cosscsncsesssre || Moschus | 
5 oa. |i honacoosde Bl] auosadiosabaoucs || /oSaqad50dade || GosuosaSsacmendccn | Tragilus 
7. Tragulide ...... { Pee ate casa eae es earateciere all eleiemielalete stots Hyomoschus | 
LII.—On the Existence of Hyalonema in a Fossil State. 
By Prof. E. Surss, of Vienna. 
To the Editors of the Annals of Natural History. 
GENTLEMEN, 
A very interesting note on the “ Glass-Rope Hyalonema,” by 
Dr. Gray, in your last Number induces me to give the following 
supplement. 
A very common fossil of the Yorkshire Mountain Limestone, 
described by M‘Coy under the name “ Serpula parallela,” is, in 
fact, a true “Glass-Rope.” Specimens of this curious fossil 
were first given to me by my excellent friend Mr. Edw. Wood, 
of Richmond, in 186] ; and | took a good number of specimens 
with me to Vienna, because the siliceous nature of the fossil, in 
a rock the other fossils of which are not changed into silex, 
seemed to me to deserve some closer observation. I soon found 
out the cause of this curious difference, and published a note on 
the true relations of Serpula parallela in the ‘ Verhandlungen’ of 
the Vienna Zoological Society for 1862 (vol. xu. pp. 85 & 86). 
I hope that English palzontologists, after having read this note 
and reexamined the fossil, will agree in naming it Hyalonema 
parallelum. 
Yours most respectfully, 
Epwarp SvgEss, 
Vienna, Oct. 13, 1866. University, Vienna. 
* Journ. Proc. Linn. Soc. ii. p. 130. 
