60 



ME. A. W. WATEES ON TEETIAET CBILOSTOMATOTJS 



size with recent specimens from New Zealand, in which the front 

 surface is smooth, and the small smooth ovicell has a mucronate 

 ridge down the centre. 



In recent specimens the spines do not occur in all zooecia nor in 

 all specimens. The most spinous specimen that I have seen is one 

 from Tahiti, in Miss Jelly's collection. This is nearly related to 

 Lepralia adpressa, and I still adhere to my opinion that L. Kirchen- 

 paueri, Heller, is only L. adpressa, in which, as I pointed out and 

 figured in my paper on the Bryozoa from Naples (Ann. & Mag. 

 N. H. ser. 5, vol. iii. p. 42, pi. xv. fig. 13), there are sometimes 

 " lateral bosses." The best figure of L. Kirchenpaueri is given by 

 Manzoni (Supp. alia Fauna dei Bry. Medit. p. 8, tav. iii. fig. 3). 



The characters of the opercula of L. Poissonii and L. appressa 

 (figs. 37, 38) enable these to be readily distinguished, although 

 also showing a near relationship. In the fossil some cells have the 

 central mucro very prominent and in others it is entirely absent. 



Loc. Living : Bass's Straits, Tahiti and New Zealand (iZ.) ; Port 

 Phillip Heads (MacG.). Fossil : Napier and N. Harbour ; Waipu- 

 kurau, " Whakati," and Petane ; Shakespeare Cliff (New Zealand) ; 

 Miocene ; Rauchstallbrunngraben, near Baden. 



48. Lepealia eectilineata, Hincks. (PI. VII. fig. 16 ; PL VIII. 

 figs. 34, 35, 36.) 



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

 vol. xi. p. 110, pi. vii. fig. 5. 



In a specimen from Waipukurau there is often a small ridge or 

 boss at each side of the aperture, just below which there are two 

 small avicularia, usually near together. Where the aperture is con- 

 tracted there is a curved denticle directed inwards, and there is a 

 similar one in L. Dorhnii, Xirchenpauer (MS.), from Naples. A 

 specimen from "Wanganui has large, elongate avicularia above the 

 aperture, whereas there are none in the one from Waipukurau. 



The ovicell, which is not known in the recent form, is raised, glo- 

 bular, about half as wide as a zooecium. Oral aperture 0*18 millim. 

 at widest part. 



Loc. Living : New Zealand. Fossil : Waipukurau, Wanganui, 

 Napier. 



49. Lepealia imbellis, Busk. 



Hemeschara imbellis, Busk, Crag Polyzoa, p. 78, pi. iv. fig. 6, 

 pi. x. fig. 7. 



Escharapertusa,M.. -Edwards, " Obs. surlesFoss. du genre Eschare," 

 Ann. des Sc. Nat. ser. 2, vol. vi. p. 9, pi. x. fig. 3 ; S. Wood, Ann. 

 Nat. Hist. vol. xiii. p. 16 ; Busk, Crag Polyzoa, p. 65, pi. x. fig. 2. 



As Lepralia pertusa, Esper, was described before Milne-Edwards 

 published the present species, the specific name must be changed ; 

 and seeing that Busk found it in the Crag, in both the Eschara- and 

 the Hemeschara-stage, we can take his second name. The fossil from 

 near Napier is adnate, and has elongate cells with large punctures 

 over the surface. There are no ovicells on these fossils. Without 



