438 A.'W. WATEES ON EOSSIL CHILOSTOMATOUS 



Mr. Ridley, in his description of a zoological collection from the 

 Straits of Magellan, describes a species as Schizoporella marsupium, 

 MacG. ; but this Mr. MacGillivray has since called S. Bidleyi. 



Width of oral aperture of the fossil 0-07 nrillim. 



Loc. Living : Victoria (MacG.) ; Bass's Straits (#.)• .Fossil 

 Waurn Ponds. 



45. Smittia Tatei, T. Woods. 



46. Smittia keticttlata, MacG. 



47. Smittia Napieeii, nov. Plate XII. fig. 14. 



Zoarium incrusting. Zooecia small, ovate, with very slight peri- 

 stome, large punctures round the edge ; oral aperture nearly flat on 

 the lower edge ; an opening (probably avicularian) just below the 

 aperture almost into the peristome. Large acute avicularia, di- 

 rected outwards, placed nearly halfway down the zooecia. Ovicell 

 raised, globose. 



I have a specimen, fossil, sent me by Miss Jelly, from " recent 

 Tertiary," Napier, New Zealand, and as it is better preserved than 

 the one from Waurn Ponds, I have figured it. 



Loc. Fossil : Napier, New Zealand ; Waurn Ponds. 



48. Smittia collaeis, Norm., var. Plate XII. fig. 10. 



I have always found the greatest difficulty in distinguishing between 

 Phylactella and Smittia, and have already expressed my doubts as 

 to the advisability of using the shape of the peristome as a generic 

 character ; and the present form, which is closely allied to, if not 

 identical with, Phylactella collaris, Norm., has decided me to only 

 use the name Smittia for what are looked upon as belonging to 

 these two genera. 



The peristome is variable, and is thicker and higher at both sides, 

 thus forming a depression in its proximal part ; the distal part 

 of the peristome is also separated, and rises in a tongue-shaped 

 form. 



The peristome of a recent species, which I collected in Rapallo, 

 N. Italy, and which I consider the same as Lepralia obeliscus, Manz., 

 and also perhaps as L. Gotriana, Ess., has a similar tongue-shaped 

 distal portion. The surface of the fossil is granular. Aperture 

 0-17 millim. wide. 



Occasionally the peristome is entire, when there is little difference 

 from that of the British P. collaris ; the peristome rising on each 

 side reminds us of Phylactella eximia, Hincks ; but in P. collaris 

 the sides are sometimes raised above the rest of the peristome. 



Loc. Fossil : Waurn Ponds and Waurn Quarry. 



49. Smittia tueetta, Sm. 



Lepralia turrita, Smitt, Floridan Bryozoa, p. 65, pi. xi. figs. 226- 

 228. 



The specimen, which was collected either from Batesford or from 

 Muddy Creek, is in the Cellepora form, the zoarium consisting of 



