PLATE 20. 



Fig. 46. — SchizoporelJa inscitlpfa Hinc-ks. A few zooecia showing large 

 orifice (or.) and wide sinus (s.). X 30. 



Fig. 47. — S. iiisculpta. A few zoa-eia showing large ocecia (oe.). X 30. 



Fig. 48. — Schizoporella linearis Hassall, subsp. inarmata Hiucks. A few 

 zooecia without avicularia characteristic of this species. X 30. 



Fig. 40. — Schizoporclhi longirostrafa Hincks. A few zocecia in the adult 

 condition. X 30. 



Fig. 50. — Schi.roporclhi oiigopus sp. nov. The dorsal surface of a few 

 zooecia showing the calcareous tubular projections or feet (tu.ft.) bv which 

 this species attaches itself to the substratum. X 30. 



Fig. 51. — »S'. oligopus. A few zooecia in the adult stage showing avicu- 

 larium («('•), the umbo {urn.) below the orifice, and the foramina (for.) 

 between the zocecia. X 30. 



Fig. 5l'. — .S'. oligopiis. A few zooecia showing the ocrcia (oe.) with crenu- 

 lated border. X 30. 



Fig. 53. — SchizoporeUa fumnlosa Hincks. A few zooecia near the grow- 

 ing edge showing the elevated avicularium (av.) and perforated margins. 

 X 30. 



.-i-m 



