Ill 
PART 2.] Gneshach: ValczoniologicaL notes, Loioer Trias, Ihnialayas. 
Opiiicreas himalayanum, iiov. sp. Plate III, fig. 8. 
Sliell rather less evolnte than in the last described species, the last whorls 
rapidly increasing in height, and in that resembling more the Lytooeras simonyi, 
Mojs., even than the last species. Bnt both the sculpture of the shell and the lobes 
differ'considerably from OpMeems tihetiaum. There are a number of nearly 
straight, only sightly S-shaped, ribs running across the sides of the shell, which 
near the commencement of the body-chamber (indicated by a small arrow in fig. 8) 
almost disappear and change into irregular fine wrinkles and bumps near the 
umbilical side. What remains of the body-chamber is about one-half of the 
entire whorl. The siphonal side is rounded, the umbilical margin sharply defined, 
descending straight down towards the shallow and wide umbilicus. The lobes are 
identical with those of the following species (figured in fig. 96). 
Ophiceeas medium, nov. sp. Plate III, fig. 9. 
General proportions of the shell the same as those of the last described 
species, but the shell is nearly smooth and only shows slight radiating wrinkles, 
which 'disappear entirely towards the siphonal side and are only slightly bent 
forward in that region. The lobe-line, fig. 96, resembles more that (fig. 7) which 
I considered as a younger individual of tibeticum, n. s. The siphonal lobe ends 
in two sharp points on each side of the divided siphonal saddle; the external 
saddle is a simple arch, rather wider than high, followed by a narrower, very finely 
serrated (at the base) first lateral lobe. The first lateral saddle is wider than 
high and bent towards the umbilical side. The second lateral lobe docs not 
reach so far down as the first, is narrower, but also very finely serrated at the 
base. The second lateral saddle is low and broad, and reaches over the umbilical 
margin; on the antisiphonal side I noticed a deep and bipartite antisiphonal 
lobe with a rounded saddle on each side connected with the second lateral saddle 
by a finely serrated lobe-line, representing one or more auxiliary lobes. 
Monophyllitbs wetsoni, 0pp., Pal. Mitth. Plate LXXXVI, fig. 2. 
Agrees well with Oppel’s figure, both in outward appearance and course of 
lobe-line. It was found only in fragments, but is very common in the upper 
beds of the lowest Trias group—the Campiler beds of the Alps. 
Teachycekas (?) GIBBOSUM, nov. sp. Plato III, fig. 10. 
With the above forms occurs an Ammonite, which in outline resembles 
somewhat Trachyceras (Amm.) semi}) art Hum, Von BuclP, but the latter is 
involute in a higher degree than my species, and consccpiently dcvelopes several 
auxiliary lobes w.-:cb arc wanting in our species. I have at present referred 
this form to Traahjeems, but it is very probable that it represents a connecting 
link between Ophioaras, n. g., and Xenodisaus, Waag., as exemplified in X. gan- 
geticAis, DoKon., and Buchianus, DeKon., which I venture to include in 
Waagen's new genus. 
1 tiber Ccratitcs Akad. Wiss., BerHii, 184U, PI. Ill, 
