338 Transactions. 



Turritella murrayana Tate, Polinices gibhosus (Hiitt.), Siphonalia cono- 

 iclea Zitt. (?), Miofnelon corrugata (Hutt.), Ancilla hebera Hiitt., Malletia 

 australi.s (Q. & G.), Chione meridionalis (Sow.) (?), and Paphia curta 

 Hutt. ; at 25 ft., TtirriteUa murrayana Tate, Ancilla hebera (Hutt.), 

 Glycymeris globosa (Hutt.), Zenatia acinaces (Q. & G.), Dosinia magna 

 Hutt., and Paphia curta Hutt.; at 20 ft., Clio (Styiola) rangiana (Tate), 

 Turritella murrayana Tate, Ancilla hebera (Hutt.), and Limopsis aurita 

 (Brocchi). Other isolated fossils found in the slips included Struthiolaria 

 cincta Hutt., Ancilla pseudaustralis (Tate), and Limopsis aurita Brocchi. 

 One of the supposedly derived boulders yielded Calyptraea maculata 

 (Q. & G.), Ancilla hebera (Hutt.), Anomia walteri Hector (?), Glycymeris 

 globosa (Hutt.), Mactra scalpellum. Reeve, and Paphia curta Hutt. Another 

 similar boulder obtained from a slip contained Turritella murrayana Tate, 

 Calyptraea maculata (Q. & G.), Dentalium mantelU Zitt., Anomia ivalteri 

 Hector (?), Glycymeris globosa (Hutt.), Mactra scalpellum Reeve, and Paphia 

 curta Hutt. All the above determinations and those that follow from the 

 Dee Gorge were made by the late Mr. H. Suter. 



Limhurne Gorge. — The gorge of the left branch of the Limburne is narrow, 

 and where it opens out on the '' grey marls " is much slipped, so that no 

 exposures in situ can be observed. The rocks present in the slips are 

 mudstones of the usual type. 



Dee Gorge. — In the north branch of the Dee the lowest beds of the 

 " grev marl " series are separated from the Weka Pass stone by a fault 

 of low angle. They consist of hard sandstones forming yellow cliffs, and 

 are succeeded above by mudstones of the usual type. From the lower 

 part of these, in cliffs on the south side, I obtained Turritella murrayana 

 Tate. In the upper part of the mudstones, about 20 ft. below the toj:), 

 there are thin bands of mudstone alternating with thin bands of sand- 

 stone containing plant-remains. There are also occasional small pebbles 

 of greywacke in the mudstones and some thin beds of fine conglomerate. 

 The junction with the overlying conglomerate is not seen at this point. 

 From these upper mudstones I collected Acmaea or Patella n. sp., Turritella 

 murrayana Tate, Struthiolaria tuberculata Hutt., Polinices gibbosus (Hutt.), 

 Siphonalia subnodosa (Hutt.), Dentalium mantelli Zitt., Glycymeris globosa 

 (Hutt.), and Ciitherea chariessa Sut. 



A little farther u]) tlie stream the junction with the conglomerate may 

 be observed over a distance of about 12 ft. It is perfectly sharp at this 

 point, and there is no bedding observable in the uppermost " grey marls," 

 which are mudstones. 



In the south branch of the Dee the hard sandstones at the base of the 

 " grey marls " have the same dip and strike as underlying Weka Pass 

 stone, but the actual junction is not seen. In a subsequent stream 

 entering this branch from the south-west along the strike of the " grey 

 marls " the latter series appears to be about 300 ft. thick. The lower 

 beds on the south-east side are hard sandstones, while the upper beds on 

 the opposite side are softer mudstones, in which, however, no shell-beds 

 were observed. The junction with the overlying conglomerate is exposed, 

 and appears to be a gradual passage, lenses of fine conglomerate appearing 

 in the upper few feet of the mudstones. 



In a second small subsequent tributary entering the south branch 

 farther u]i on the same side there are a few lenses of sandstone near the 

 top of the '■ grey marls," but no shell-beds. A crinoid stem was collected 

 about half-way up this creek. The uppermost mudstones contain pebbles 



