160 
THE GEOLOGIST, 
"References to \rorks on fossil mammals of tliis order will be found at p. 236, 
vol. i, of Pictet's Traite de Paleoutologie (Paris 1S53— 1857), where in plate 
vi., are figures of the teeth of the upper jaw of the Ardonujs alpinus, the alpine 
marmot ; and of the Ardomys Anernensis from the Pliocene beds of Auvergne. 
We learn from Pictet that remains of the Ardomys arvernensis, Brav., are 
also figured by Gervais, in his Zoologie et Paleoutologie Pranfais, pi. 26 and 
pi. 48° 
The deposit in which Kaup found the Eppelsheim specimen was first regarded 
as Miocene, and since referred to the diluvium by H. von Meyer. It was a 
nearly complete specimen, surpassing the marmot in size. It is the Ardomys 
p'imigenia of Kaup, and Myoxus irrimigenius of H. von Meyer (Palseologica p. 61 
and p. 409). 
M. Gervais, in his Zool. et Pal. Praugais, p. 20, p. 46, figs. 11 and 12, refers 
to this species the bones found in the diluvium of Paris, Niort, and Issiore. 
Ardomys spelmis, of Pischer von Waldheim (Nouveaux Memoires de T Acade- 
mic de Moscow, 1834. t. iii, p. 381), has been found in the caverns of Prussia. 
It is allied in form to A. hohac, but its skull shows too many differences for the 
union of the species. M. Pomel in the Bulletin de la Societe Geologique de ' 
Prance 2e serie, t. i, p. 594), indicates a marmot from the Auvergne alluvium 
differing from the A. primigenia. 
The marmot of the alps {A. marmotta, Schreber) has been found a fossil in 
the diluvium of Mossbach and Koestrich. (Herm. v. Meyer, Neues Jahrb, 
1847, p. 181). 
The Flesiardomys Gervaisii, Brav. et Pomel (Notice sur les Ossemens Fossiles 
de la Behnige: Gervais, Zool. et Pal. Fr., p. 47J, sui'passes, slightly, in size 
the marmot, and has been found fossil in the lacustrine limestone of Saint 
Perreal, near Apt (Parisien superieure). 
The spermopliils differ from the marmots in their pouches, and their lighter 
forms. They are found in the tertiary and diluvium beds. The Spermopliilus 
speciosus of H. v. Meyer (Leonh. und Bronn, Neues Jahrb, 1846, p. 474) is only 
known by an upper jaw found at Weisenau, in miocene strata. 
Tlie S. super dliosus, Kaup (Oss. Poss. de Darmstadt, 5 liv., pi. 25, figs. 
3 — 6), is found near Eppelsheim, with Ardomys prmigenia. It is probably the 
same species as that from the bone - breccias of Montmorency, Auvers, 
and Auvergne. M. Desnoyers says that it is most nearly allied to S. Richard- 
sonii of America (BuU. Soc. Geol. Pr., t. xiii. ; Pomel, id., 2e serie, t. iii., p. 
212. Gervais : Zool. et Pal. Pr., p. 19). 
Pictet places in tliis group the genus Lithomys, which H. v. Meyer established, 
Keues Jahrb., 1846, p. 475, for the miocene rodents of Weisenau, and which 
H. von Meyer iu Bronn's " Enumerator" placed with the squirrels {Sdurina). 
The marmots {Ardomys, Gmel.) have the lower incisors pointed Like the 
squu'rels, but less compressed, the molars "herissees de pointes les formes 
lourdes," (Pictet) and the tail short. They have only been found in diluvium 
and upper tertiaries. The Fleisiardomys (Gervais) have the molars like those 
of tlie marmots, except that the tubercles are much more rounded, indicating 
a more frugivorous diet. 
Errata in " Geol. of Cllyel.'Ln^d."— At p. 82, line 16, for " analogies" read 
^'analysis'' — p. 83, line 1, for "portion" read "position'" — p. 83, line 31, for 
"from the north part" read "for the most part"" — p. 88, line 4, for clay-stones" 
read -'day-ironstones" — p. 90," line 30, for "east" read "coast" — p. 93, line 32, 
for "clay" read "slag"—^. 93, line 39, for "often" read "just." 
Errata in "Geol. Excursion to the Channel Islands. — At p. 112, line 
13 from the bottom, for "great" crystals read "quartz" crystals— p. 114, foot- 
note, for "Mr. Juices" read "Mr. Lukes" — p. 115, quotation from Virgil, for 
"nudiis" read mediis" 
