Clarke. — Fossils of Waitemata and Papakura Series. 415 



and Porter Rivers), but there are differences — in the angle 

 enclosed by the base, which is less than in the South Island 

 specimen ; in the marginal thickening of the septa, which is 

 more pronounced ; and in the external markings, which are 

 fainter and more regular, with no concentric ones. 



Locality. — Slippery Creek, E. C. 



Range. — Oam aru. 



Flabellum papakurense, sp. nov. Figs. 1 and 2. 



More or less conical, but in some specimens (fig. 1) the 

 sharp-pointed somewhat recurved apex stands in the middle 

 of an almost flat area, from whose periphery the calice-walls 

 rise as a cylinder. Aperture nearly circular; diameters 19mm. 

 and 16-18 mm. Thick outer layer of theca easily separable 

 from inner. Near base are 6 to 8 rootlets. Septa in 3 cycles 

 apparently, but in some specimens (fig. 1) their arrangement 

 is irregular. In this variety the septa are thin, with granu- 

 lated surface, the granules being more or less arranged in 

 lines ; towards the centre the septa diverge from the radial 

 direction, seeming to lie over on their sides and anastomosing 

 to form a false columella. In the one more strictly conical 

 form obtained (fig. 2) the septa are stouter and more regular. 

 No granules were observed. The first variety seems to have 

 been worn so as to show the septa at a lower level, and this 

 no doubt accounts for some of trie differences noticed. Pali 

 are absent. 



There does not seem to be any grave objection to placing 

 these specimens under Flabellum, unless it be the absence of 

 compression. The septa anastomose irregularly in F.rubrum 

 found in New Zealand waters. 



Locality. — Slippery Creek, E. C. 



Class Echinoidea. 



Schizaster rotundatus, C.T.M., p. 43. 



Locality. — Papakura, Hochstetter, 3, p. 43. 

 Mange. — Lower Oamaru. 



Sub-kingdom V. MOLLUSCOIDEA. 



Class Bkyozoa. 



See App. 7. Mr. Fox (28) also identified a number of 

 Bryozoa. 



Class Bbachiopoda. 



Rhynchonella nigricans, M.M., p. 178. 



Localities. — Little Omaha, Cox, 13, p. 31 ; Eodney, Zit- 

 tel, 4, p. 61 ; Waikopua, Park, 19, p. 152, and E. C. ; Papa- 

 kura, Park, 19, p. 153, and E. C; Motutapu, Park, 22, p. 226, 

 and E. C. ; Papakura and Cheltenham, Fox, 28, p. 468. 



Range. — Oamaru to Recent. 



