Pank.—Liothyrella boehmi Greensand Band at Flume Creek. 81 
The molluses collected here included— 
Epitonium lyratum (Zitt.) | Pecten hochstetteri Zitt. 
Siphonalia conoidea (Zitt.) | Pecten delicatulus Hutt. 
Turbo marshalli Thomson Pecten huttoni (Park) 
Crepidula costata (Sow.) | Ostrea wuellerstorfi Zitt. 
From the same bed I collected the brachiopods— 
Liothyrella boehmi (Thomson) | Pachymagas ellipticus Thomson 
Liothyrella oamarutica Boehm Neothyris tapirina (Hutt.) 
Terebratulina suessi Hutt. Rhizothyris rhizoida (Hutt.) 
Aetheia gualteri (Morris) - Hemithyris sp. cf. squamosa (Hutt.) 
Of these, Liothyrella boehmi, Aetheia gualteri, and the species of Hemi- 
the flume, in the uppermost layer of the tuffs, I found a good example of 
- Liothyrella boehmi and one example of Aetheia gualteri. 
My success at Flume Gully led me to an examination of the lower 
glauconitie horizon further afield. I discovered almost the same assemblage 
of brachiopods in the glauconitic band underlying the Maruwhenua lime- 
stone at the old gold-workings; also in the same band below the Ngapara 
stone at Weka Creek, Ngapara, at Pukekarara Creek, a mile and a half 
achiopods. 
The assemblage of brachiopods found at Flume Gully is practically 
the same as that occurring in bed c, fig. 25, overlying the Oamaru stone 
stone near Sebastopol;f in the calcareous glauconitic tufis overlying the 
Kakanui and neighbourhood.§ . 
But this brachiopod assemblage also occurs in the glauconitic sand- 
stone band underlying, or forming, the lowermost part of the Waitaki 
stone near Duntroon,|| Maruwhenua, and Ngapara. And from these facts 
I conclude (a) that the Waitaki stone overlies the Oamaru stone: (b) that 
the Kakanui, Flat Top Hill, and Deborah limestones, as well as the upper 
bands of limestone or calcareous glauconitic sandstone at Sebastopol, 
Landon Creek, and Flume Gully, are the equivalent of the Waitaki 
stone; and (с) that the ‘Liothyrella boehmi brachiopod horizon below the 
Kakanui limestone is the equivalent of the glauconitic sandstone band 
immediately below the Waitaki stone. 
The new evidence strengthens my contention (a) that in the Oamaru 
area there are two limestone horizons—viz., the Oamaru limestone and 
* J. Park, The Geology of the Oamaru District, N.Z. Geol. Surv. Bull. No. 20 
(n.s.), p. 63, 1918. 
tJ. Park, Le., р. 74. 
