30 
Records of the Geological Survey of India. 
[vol,. x. 
of the Rajmahal flora as at least lower Liassic. The Estheria may perhaps be taken as an 
indication in the same direction. This Estheria Kotaensis may now also be taken as an 
Upper Gondwana form. 
As the Estheria has hithero been neglected in India in the discrimination of horizons’ 
I would add some illustrations of the service it has rendered elsewhere. 
Estheria minuta, Jones, is a splendidly guiding fossil of the whole Keuperic strata 
in Europe. A variety of this species— Esth. minuta, var. Brodieana, J.—is characteristic 
of the Rhsetic strata. The well-known Prof. Romer, only with the assistance of Estheria 
minuta , var. Brodieana, Jon., decided that certain rocks in Upper Silesia belong to the 
Rhsetic group. He says in his valuable work, “ Geologie von Oberschles,” on p. 175, 
discussing the fossils of certain series, which he calls “ Hellwalder Estherien Schichten, ” 
as follows (1 give the translation):—“Except Estheria minuta, Jones, no organisms were 
observed in that series. But also by itself the little crustacean is of great importance for 
the determination of the age of this formation. Estheria minuta, J., is a very common 
fossil in the Keuper. A variety, Esth. minuta, var. Brodieana, J., which is marked by a 
smaller size and a finer reticulation in the sculpture of the shell, is according to Jones’ 
explanation characteristic of the Kinetic strata. The Upper-Silesian form agrees very well 
with the figures of this variety.’’ And from this and from some other characteristics, Prof. 
Romer draws the correct conclusion that those beds in Upper Silesia alluded to are of 
Rhsetic age. 
Our Estheria of the smaller size does not differ much from that Silesian one. Thus, 
two species are characteristic of certain series; and there are more of them. 
Now Prof. Geinitz describes Estheria Mangalienais, Jones, again from Rhsetic strata, 
in South America. Prof. Rupert Jones has certainly not in vain devoted a monograph to 
the fossil Estheria. 
Notices of new and othee Yeetebeata feom Indian Teetiaet and Secondaey 
Rocks, by R. Lydekkee, B. A., Geological Survey of India. 
The present paper contains short notices of several species of Yertebrata from the 
Tertiaries and Secondaries of India, which are either new to science, or of which some new 
point in the osteology or distribution is now for the first time noticed ; the new species will be 
subsequently figured and described in the “ Palseontologia Iudica,” although some of these 
descriptions will not appear for a considerable period. 
Bos acijtifeon s, n. sp., nobis. 
This species is founded upon a cranium from the Siwaliks ; it may be defined from 
the characters of the cranium as follows :—- 
Frontals convex, longer than broad, horn-cores placed immediately above occiput, com¬ 
pressed, convex superiorly, extending at first upwards and outwards, with a slightly inward 
curve at their tips; centre of forehead more prominent than bases of horn-cores ; span of 
horn-cores when complete nearly nine feet; occipital crest narrow, rounded, and extending 
upwards almost to the intercornual ridge. 
Bos PLANIFEONS, n. sp. 
This species also is known by a single cranium from the Siwaliks, of smaller size than 
the last; it may he defined as follows :— 
Frontals nearly flat, longer than broad, horn-cores placed above occiput, slightly com¬ 
pressed, convex superiorly directed outwards, slightly upwards, and at the tips inwards; 
