"2iJ; DE. C. T. TEECHMAXX OX [vol. IxXlii, 



Fig. 7. Terehratula (Ccenothyris ?J sp. Xoric. Pseudomonotis Bed; Eicli- 

 mond, Nelson. Natural size. Gutta-percha squeeze. Dorsal 

 aspect. Trechmann Coll. (P. Iil8.) 



8. Terehratula ci.lnuigarlca 'Bittnev. Carnic ; Otamita, Hokonui Hills. 



Natural size. Dorsal aspect. Trechmann Coll. (P. 219.) 



9. Mentzelia cf. amiila Bittner. Eheetic ; Kawhia. Natural size. 



Dorsal aspect. Trechmann Coll. (P. 228.) 

 Pigs. 10 a & 10 b. Mentzelia Jcau-hiana, sp. nov. E-hastic ; Kawhia. Natural 



size. o=ventral; b= dorsal aspect. Trechmann Coll. (P. 228.) 

 Pig. 11. Mentzeliopsis spinosa, gen. et sp. nov. Kaihiku Beds, Ladino-Carnic ; 



Caroline Cutting, Hokonui Hills. Natural size. Gutta-percha 



squeeze of dorsal valve. Trechmann Coll. (P. 230.) 



12. Ditto. Same locality. Natiu-al size. Gutta-percha squeeze of 



another dorsal valve. Trechmann Coll. 



13. Ditto. Same locality. Natiu*al size. Gutta-percha squeeze of a 



ventral valve. Trechmann Coll. 



14. Ditto. Same locality. Natural size. Gutta-percha squeeze of 



another ventral valve. Trechmann Coll. 



15. Ditto. Same locality. Natiu-al size. Gutta-percha squeeze of the 



interior of a ventral valve showing the median septum and the 

 external spines. Trechmann Coll. 



16. Ditto. Kaihiku Beds ; North Peak, Hokonui Hills. Cast, the spines 



destroyed, showing the ventral median septum and dental plates. 

 Natural size. N.Z. Geol. Surv. Coll. 



17. Mentzeliopsis horrida, sp. nov. Kaihiku Beds, Ladino-Carnic; 



Caroline Cutting, Hokonui Hills. Gutta-percha squeeze of dorsal 

 valve. Natural size. Trechmann Coll. (P. 230.) 

 — 18. Ditto. Same locality. Gutta-percha squeeze of the ventral valve 

 of another specimen. Natural size. Trechmann Coll. 



Tigs. ,19 a & 19 fc. Spiriferina (?) caroiinse, sp. nov. Kaihiku Beds, Ladino- 

 Carnic ; Caroline Cutting, Hokonui Hills. Natural size. Gutta- 

 percha squeeze: a = the interior ; 6= the exterior of a ventral valve. 

 Trechmann Coll. (P. 226.) 



Pig. 20. Ditto. Same locality. Natural size. Gutta-percha squeeze of the 

 exterior of a dorsal valve. Trechmann Coll. 

 21. Retziaschicageri'Bittji.eT. Carnic ; Mount Heslington, Nelson. Gutta- 

 percha squeeze. Dorsal aspect. Natural size. Trechmann Coll. 

 (P. 227.) 



Plate XXIV. 



Pig. 1. Spiriferina diomedea, sp. nov. Phsetic. South Hillend, near the 

 Hokonui Hills. Gutta-percha squeeze of a dorsal valve and part of 

 the ventral area. Natural size. Marshall Coll. (P. 222.) 



2. Ditto. Ehaetic : Nugget Point, Otago. Natural size. Dorsal aspect, 



the wings broken. N.Z. Geol. Surv. Coll. (P. 222.) 



3. Spiriferina acutissima, sp. nov. Noric(?): east side of Mount 



Heslington. Nelson. Gutta-percha squeeze, dorsal aspect. Natural 

 size. N.Z.' Geol. Sui-v. Coll. (P. 221.) 



4. Spiriferina gypaetus, sp. nov. Noric (?) ; South Peak, Benmore, 



Hokonui Hills. Gutta-percha squeeze, dorsal aspect. Natural size. 

 N.Z. Geol. Siu-v. Coll. (P. 221.) 



5. Spiriferiyia cf. austriaca Suess. Lower Carnic (?) ; Mount Potts. 



Dorsal aspect. Natural size. N.Z. Geol. Surv. CoU. (P. 224.) 

 Pigs. 6-8. Spiriferina nelsonensis, sp. nov. Carnic : western slopes of Mount 

 Heslington, Nelson. Natural size. Gutta-percha squeezes : 6 — 

 a dorsal valve and ventral area : 7 = exterior of a ventral valve ; 

 8 — ventral area: of three diiferent examples. Trechmann Coll. 

 (P. 223.) 



