BEYOZ0A EEOlt NEW ZEALAND. 



67 



is sometimes at the side of the sinus a small suboral aviculariuni, 

 so that the fossil differs in these two particulars from the typical 

 S. obliqua. The sinus is very distinct, and the aperture almost 

 meets above it. 



69. Schizopoeella cxncttpoea, Hincks, var. peesonata, nov. (PI. 

 VIII. fig. 28.) 



Zoarium adnate. Zocecia ovate, not much raised, divided by 

 slightly raised lines ; surface reticulate, with large pores. Oral 

 aperture rounded above, longer than broad, with a distinct sinus on 

 the proximal edge ; on each side, below the aperture, on the border 

 of the zocecia, an elongate protuberance ; between these, below the 

 aperture, a small rounded avicularium. This differs from the recent 

 forms in having the two lateral bosses. Since describing and figuring 

 the first specimens, I have had another from Waipukurau Gorge, with 

 ovicells, submitted to me. The two lateral bosses, in fully developed 

 ovicelligerous cells, meet in front and form a bridge, as in Smittia 

 jacobensis, S. Landsborovii, var. 'persona ta, Microporella polystomella, 

 and Schizoporella polymorpha, B. In the Waipukurau fossils there 

 are no avicularia. Miss Jelly has a specimen of this variety, recent, 

 from New Zealand, growing in a cylindrical shape. 



Log. Living : New Zealand. Fossil : Petane marls and Waipu- 

 kurau. 



70. Schizopoeella ttjbeeosa, Ess., var. axgustata, nov. (PI. VIII. 

 fig. 26.) 



Type : Eschar a tuberosa, Ess. Die Foram. Anth. und Bry. des 

 d. Septarienthones, Denkschr. Ak. Wissensch. Wien, vol. xxv. p. 188, 

 pi. vi. figs. 9, 10, pi. viii. fig. 1. 



Schizoporella biturrita, Hincks, Ann. & Mag. Nat. Hist. ser. 5, 

 vol. xiv. p. 280, pi. ix. fig. 8. 



This occurs fossil from Waipukurau, with a tubular zoarium, in 

 the Hemeschara- stage. Zocecia indistinct, with few large pores. 

 Oral aperture clithridiate, with a large broad triangular avicularium 

 above the aperture on each side directed towards the aperture. Oral 

 aperture 0*17 millim. wide, 0*21 millim. long. 



In mode of growth and general characters this resembles a recent 

 Schizoporella tuberosa from the Semaphore, Adelaide, with a large 

 triangular avicularium, which is often much raised, above the aper- 

 ture on each side, and with a large broad raised ovicell ; but in this 

 the aperture is much larger and the sinus is broadly emarginate 

 (see fig. 29). 



In the fossil we are reminded of Lunulites incisa, H. (conica, 

 MacG.), and Schizoporella biaperta. The typical L. tuberosa also 

 occurs recent in Botany Bay, N.S.W., in the Lepralia-stage. Mr. 

 Hincks describes it from Port Phillip Heads in a bilaminate stage. 



I have not seen any from Australia or New Zealand with the 

 avicularia inarching, i. e. in the personata- stage, as in Busk's 

 Gephyrophora polymorpha. 



e2 



