360 GeMhgical Society. 



horizon is either late Middle or earlj Upper Trias, and the great 

 luifossiliferous series below it represents the Middle and possibly 

 Lower Trias. 



The most highly fossiliferons division is the Carnic — the Oreti 

 and Wairoa Series of New Zealand geologists. Several am- 

 monites occur, among which DiscophylUtes of. ehneri Mojsisovics 

 is found in the Carnic and Lower Noric of the Himalayas, 

 The Halohice include H zifteli Lindstrom, a Spitsbergen fossil, 

 together with S. Jiochstetteri Mojsisovics and II. austriaca 

 Mojsisovics. Several of the Carnic fossils show affinities with 

 European Alpine forms, and can be used for purposes of 

 correlation. 



The Noric horizon, the Otapiri Series in part, is represented by 

 felspathic sandstones containing immense quantities of Psendo- 

 monotls, a genus which characterizes the Noric in all the Circuni- 

 Pacific Trias. Ps. ricJimondiana Zittel is known only from New 

 Zealand and New C^donia ; but the Author found the Asiatic, 

 Siberian, and Japanese form, Ps. ochotica Teller, in all its varieties, 

 in verj' high Noric beds near Nelson. 



The Rhajtic, the upper part of the Otapiri Series of local 

 geologists, com]:)rlses a great thickness of sandy and pebbly beds. 

 Its fossils include an extremely-alate Sjyiriferina and a group of 

 specialized bisulcate Spirlgerids. An Arcestid of Uhsetic aspect 

 was collected high up in these beds at Kawhia. 



Forty-seven genera and species of molluscs and brachiopods are 

 recorded in the present paper, of which three genera and forty-one 

 species are regarded as new. 



The brachiopods are of considerable interest, and exhibit phylo- 

 gerontic tendencies in several of the groups as they approach 

 extinction. 



The affinities of the New Zealand Trias with that of the Malay 

 Archipelago, and especially of New Caledonia, is discussed ; and it 

 is shown tliat the faunal transgression which occurred over those 

 regions, at or shortl}^ before the commencement of Upper Triassic 

 times, extended also to the area now occupied by New Zealand. 



2. ' The Triassic Crinoids from New Zealand, collected by Mr. C. 

 T. Trechmann.' By Francis Arthur Bather, M.A., D.Sc, F.R.S., 

 F.G.S. 



The specimens are all from the Kaihiku Series, and comprise : — 



(1) an ILiitrochus from near Nelson, with a broadly waved suture ; 



(2) a rock-fragment from the Hokanui hills, containing imprints 

 of columnals and brachials representing two genera : namel}^ («) an 

 Entroclius with ridges of the joint-face arranged in pairs separated 

 by shorter ridges ; (i) an Isocrinus of the group of /. duhius 

 (Groldfuss). Comparison of the three new species based on all these 

 remains with the Triassic crinoids described from Europe and 

 especially with those from North America, leads to the conclusion 

 that they are of Upper Triassic age. They bear, however, no 

 resemblance to the Upper Triassic crinoids from Timor, which the 

 Author has in hand for description. 



