BRTOZOA PROM NEW ZEALAND. 



59 



and it is with some hesitation that I make a variety of the New- 

 Zealand fossil and recent specimens. 



Log. Living: New Zealand. Fossil : Waipukurau. 



45. SiiiniA Napierii, "Waters. 



JSmittia Napierii, "Waters, Quart. Journ. Geol. Soc. vol. xxxix 

 p. 438, pi. xii. fig. 14. A 



It has been thought that this was the Mucronella tricuspis of 

 Hincks (Ann. & Mag. N. Hist. ser. 5, vol. viii. p. 66, pi. iii. fig. 1), 

 and at one time I concurred in this view, which was based upon 

 the examination of a specimen which Mr. Hincks himself had named 

 M. tricuspis ; but having since found a recent tricuspis from Port 

 Phillip, Victoria, I see that they are not identical. 



The recent S. Napierii has a solid shell, with large pores round 

 the border ; the avicularian mucro is directed mostly forwards, that 

 is towards the distal end, and below this there is a narrow bifid 

 denticle. The ovicell is sometimes nearly concealed, and its presence 

 is only revealed by a mucronate elevation, in other cases it is con- 

 siderably raised and globose. 



The M. tricuspis, which has also been described as M. munita, 

 MacGiilivray (Dei=c. of New or Little-known Polyzoa, pt. 2, p. 136, 

 pi. ii. fig. 10), has a very curious peristome which rises abruptly 

 from the front of the zocecium and is thick in consequence of being 

 hollow, or rather having a tube on each side of the mucro. This 

 has not been mentioned by Mr. Hincks. Inside the peristome there 

 is no denticle, but the proximal edge of the aperture is a straight 

 plate. My specimen is hyaline. 



Loc. Living : Port Phillip (Australia). Fossil : Waurn Ponds 

 (Australia) ; Napier, Waipukurau ; Trig's Station, Tanner's Run, N.Z. 



46. PORINA GRANDIPORA, Sp, UOV. (PI. VII. fig. 23.) 



Although the state of preservation of this fossil from Napier is so 

 unsatisfactory that a full description of it is impossible, yet, if again 

 found, it may, I think, be recognized. The peristome is much raised, 

 hiding the mouth, and there seems to have been a large avicularium 

 on the summit at each side. In the centre of the zocecium there is 

 a large round pore, and from this it would seem to belong to 

 Gigantoj>ora of Ridley. 



47. Lepralia Poissonii, Aud. (PI. VIII. fig. 37.) 



Flustra Poissonii, Aud., Savigny, Descr. de l'Egypte, pi. x. fig. 5. 



Lepralia Poissonii, Hincks, Ann. & Mag. Nat. Hist. ser. 5, 

 vol. viii. p. 63, and vol. xv. p. 256. 



Lepralia setigera, MacGiilivray (non Smitt), Trans. Roy. Soc. 

 Victoria, vol. xix. p. 133, pi. i. figs. 2, 3. 



Lepralia odontostoma, Rss. Bry. (Est. Ung. Mioc. p. 16, pi. iv. 

 fig. 8. 



Lepralia Kirclienpaueri, var. teres, Hincks, Ann. & Mag. Nat. 

 Hist. ser. 5, vol. vi. p. 77, pi. ix. figs. 7, 7a. 



This is a very common fossil from Waipukurau and corresponds in 



