92 Transactions. 



{(J.) Tata Island, Golden Bay, West Nelson. 

 Again Polyzoa and ecliiiioderms make up the greater part of the rock. 

 Forayninifera rather numerous, including Truncatulina, Rotalia, and a 

 somewhat doubtful specimen of Amphistegina. A little LitJiothamnium is 

 present. There are a great many quartz grains. 



{h.) Mount Sotners, South Canterbury. 

 This rock consists mainly of Polyzoa, though echinoderm remains are 

 frequent. Foraminijera are less abundant, and only Glohigerina, Operculina, 

 and the small round species of AmpJiistegina could be distinguished. Grains 

 of glauconite and occasional grains of quartz are to be seen. 



{i.) Castle Hill, Trelissick Basin, Canterbury. 



Polyzoa are again the most frequent organisms in this rock, though 

 echinoderm plates are common. Foraminifera are less common, and only 

 Cristellaria could be distinguished. There is some LitJiothamnium. 



{].) Pahau River, Culverden, North Canterbury. 



In some specimens shell fragments are very abundant, but in others 

 the material is mainly polyzoal. The echinoderm plates are plentiful, and 

 generally in a good state of preservation. Foraminijera are generally 

 rather few in number, but a Truncatulina and a small round Amphistegina, 

 apparently the same species as in the northern limestones, are quite distinct. 

 There is some Lithothamnium. A little glauconite. Much secondary calcite 

 and a single quartz grain. 



{h.) Oamaru, North Otago. Plate VIII, fig. 2. 



This is the Ototara stone of the Geological Survey, which has been largely 

 used as a building-stone throughout New Zealand. The stone is less compact 

 than the majority of the limestones, and during the preparation of the sec- 

 tions the organisms become separated to some extent. Polyzoa, echinoderm 

 plates, and Foraminijera are present in about equal proportions. Rotalia 

 is the most common of the Foraminijera. Truncatulina is not infrequent, 

 and there is an occasional Amphistegina. No Lithothamnium, glauconite, or 

 quartz are to be seen in the half-dozen rock-slices that were prepared. 



Beneath the main outcrop on the north side of the Kakanui Valley, near 

 Clark's mills, there are several narrow bands of limestone interbedded in 

 the soft marls. The lowest of these has a small quantity of Lithothamnium, 

 but in other respects these bands are not to be distinguished from the ordinary 

 limestones of the main outcrop. 



{I.) Limehills, Winton, Southland. 



Composed mainly of Polyzoa, though Foraminijera are rather more 

 frequent than usual. Shell fragments and plates of echinoderms are common. 

 Among the Foraminijera there are Globigerina, Rotalia, Truncatulina, and 

 a very small Amphistegina. Some small grains of quartz and a few round 

 grains of glauconite. 



{in.) Cabbage Bay, Coromandel Peninsida. 



A great preponderance of Polyzoa and relatively little echinoderm 

 material. Foraminijera consist of Globigerina, Carpentaria, and Amphi- 



