Victorian Fossils, Part XII. 323 



Plate LIX. 



Fig. 13. — {]) LinguhJla, sp. A fragmentary valve adhering to 



the ghibella of Ptychoparia thielei. x 6. 

 Fig. 11. — Pedicle valve of Ortltis {PlectortJiix) plat i/stro phi aides, 



sp. nov. X 3. 

 Fig. 15. — Brachial valve of Orflii-< (riectorthis) platystrophi- 



<)ide'<, sp. nov. x 3. 

 Fig. 16. — Crinoid coluninars, indet. : a, articular face: h. side 



view. X 3. 

 Fig. 17. — Crinoid cohunnar, indet. Probably a nodal joint: a, 



articular face ; h, edge view, x 3. 

 Fig. 18. — Scenella tenuistriato, sp. nov. ; a, apical aspect ; b, 



side view, x 6. 

 Fig. 19. — Restoration of the cephalon of Ptychoparia thiehi, 



sp. nov. x 2. 

 Fig. 20. — {]) Crepiccphahis ether idgei, sp. nov. Portion of a 



cranidiuui, showing the rounded form of the glabella. 



X 2. 

 Fiir. 21. — {I) ('. f-therldgei, sp. nov. A cranidium, with tuber- 



culate surface, x 2. 

 Fig. 22. — Ptychoparia miniina, sp. nov. Neck ring, showing 



the spinose character of the median ridge, x 6. 



Plate LX. 



Fig. 23. — Photomicrograph of a section of the trilobite lime- 

 stone (Dolodrook River), x 14. 



Fig. 24. — Four examples of Orthis (Plectorthis) 'platy><trophi- 

 oides, sp. nov. Tlie npi)er specimen is a brachial valvef 

 the lower, pedicle valves. Roan Horse Gully. About 

 natural size. 



Plate LXI. 



Fig. 25. — A section tbrougli one (if the (?) Girvanella pellets, 

 showing nucleus formed by a crinoid ossicle. Roan 

 Horse Gully, x 7. 



Fig. 26. -Photograph of surface of nodular or (?) Girvanella 

 limestone. Roan Horse Gully. About natural size. 



