VERMICERAS. 95 
found somewhat earlier in the Upper Bucklandi bed. Neither Schlot. D’ Orbigni- 
ana, nor any of the similar modifications so well exhibited in the collections at 
Semur and in the Boucault collection of the Museum of Comparative Zodlogy, 
are represented in this fauna. 
VERMICERAS. 
Vermiceras is represented in the Northeastern Alps by Ver. Conybeari, figured 
by Hauer, and Ver. Hierlatzicum, Geyer, a dwarfed species. Amm. spiratissimum, 
Hauer, occurs in company with Conybeari in the Lower Bucklandi bed at Enzes- 
feld; but this is probably a species of Caloceras, similar to Cad. carusense, of the 
large variety which occurs in the Bucklandi horizon in South Germany. 
Suess and Mojsisovics do not give any species of this genus as occurring in 
the Osterhornes mountains, and this is also the case in several other localities 
where the formations are sufficiently well developed to lead one to expect that 
the genus would be represented if at all common in this province, Cad. prespira- 
tissimum, in the Angulatus bed of the Kammerkahr Alps and Adneth, as given by 
Wiihner,' is the only example of a transitional form. Nevertheless the great 
development of caloceran species in the Mediterranean fauna shows that a com- 
plete series of transitional forms probably occurred in that province. 
Giimbel does not mention Vermiceras, in his “‘ Geognostische Beschreibung der 
Bayerischen Alpen,” as having been found in the Kammerkahr Alps, unless 
indeed his Amm. spiratissimum is a true vermiceran form, or similar to Wihner’s 
species of prespiralissimum, nor did he find any species of this series in the gray 
limestones at Gastiitter Grabens. Herbich, in his “Széklerland,”? gives figures 
and descriptions of Avict. multicostatus, with both young and adult similar to 
and probably the same as his Ariet. Conybeart, all having been found near Also 
Rakos in the Besanyer mountains. The radical species Ver. spiratissimum made 
its appearance in South Germany earlier than elsewhere, if we can regard, as 
seems to us correct in every way, transitional forms like that on Summ. Pl. XI. 
Fig. 22, though named as belonging to Cal. daqueum, as really closer to Vermi- 
ceras than to Caloceras. The principal transitions must have taken place in the 
Caloceras bed of this basin, instead of in the Angulatus bed, as in the Mediter- 
ranean province. 
’ The basins of South Germany and the Cote d’Or are about equivalent in 
the number of transitional forms, and it is as easy to trace the gradations from 
Caloceras to Ver. spiratissimum in one locality as in the other. The extraordinary 
evolution of the series .in the Cdte d’Or indicates that it must have met with 
its most favorable home on the bucklandian horizon in this basin. Even on the 
Tuberculatus horizon several new varieties were evolved, some of which, however, 
like debilitatus, Rey., must be considered as degradational, and consequently in- 
dicate the decadence of the genus in this later fauna. 
According to Dumortier’s figures and descriptions, this genus is represented 
1 Mojsis. et Neum., Beitr., V. p. 53. 
* Mittheil. Jahrb. d. k. ungar. Geol. Anstalt., V., Part II. 
