Plate 3. 



Fig. 1. IJippociplosia baccata Canu and Bassler, 1920. (p. 131.) 



View, X 20, of Miocene example of this species. 



Lower Miocene (l^owden marl): Bowden, Jamaica. 

 Fig. 2. Rhamphostomella granidnsa, new species, (p. 151.) 



The incrusting zoarium, X 20, showing the granular ))leurncy.«t, .small areolar [lore.s, and the 

 aperture with its triangular avicularium. 



Lower Miocene i ISowden marl): Bowden, Jamaica. 

 Fig. 3. Smittina ophidiana Waters, 1877. (p. 144.) 



A small incrusting zoarium, X 20. The large median avicularium, two frontal pores, rectangular 

 lateral pores, and gi-anular ovicell are to be noted. 



Miocene (Bowden marl): Bowden, Jamaica. 

 Fig. 4. Mastigophora granulosa, new species, (p. 172.) 



0\-icelled and uno\-icelled zooecia of the incrusting zoarium, X 20, illustrating their large size, 

 granular surface, and the position of the vibracula at the level of the rimule. 



Lower Miocene (Bowden marH: Bowden, Jamaica, 

 Figs. 5-7. Aiinulosla brtris, new species, (p. 140.) 



h. The incrusting zoarium, X 20, illustrating the zooecia in the ancestrular region. 



Lower Miocene (Bowden marli: Bowden, Jamaica. 



(). A typical example, X 20, with the usual short zooecia bearing very salient median a^■icularia. 



7. Marginal ]5ortion of a zoarium, X 20, exhibiting larger zooecia. 



Pliocene ( Caloosahatchee marl): Shell Creek, Be Soto County, Florida. 

 Fig. 8. Stylopoma minuta, new species, (p. 104.) 



Portion of the incrusting type specimen, X 20. The ovicell entirely covering the apertura and 

 the small size of the zooecia are to be noted. 



Lower Miocene i Bowden marl i : Bowden, Jamaica. 

 Figs. !), 10. HoloporcHa hemispherica, new species, (p. 176). 



9. Several of the small, free, hemispherical zoaria, natural size. 



10. Zooecia, X 20. illustrating their large size and convex frontal, surrounded by large areolar 

 pores. 



Lower Miocene (Bowden marl): Bowden, Jamaica. 

 Figs. 11-13. Rhynchozoon veiruculatum Smitt, 1872. (p. 157.) 



11. Central portion of the incrusting zoarium, X 20, showing indistinct zooecia. 



12. Marginal zooecia, X20, with outlines well preserved. 



13. Another aspect of the zooecial surface, X 20. 



Pliocene (Caloosahatchee marl): Shell Creek, De Soto County, Florida. 

 Figs. 14, 15. Tcrehripom sinefilum, new species, (p. 15.) 



14. A normal zoarium, X 20, illustrating deeply perforated old zooecia and absence of canals. 



15. Portion of a young zoarium, X 10, showing both the axes and the zooecia. The latter have not 

 perforated the shell very deeply. 



Lower Miocene i Bowden marli: Bowden, Jamaica. 

 Figs. Kj. 17. To-ebripom elongata, new species, (p. 15.) 



le. The type specimen, x 3 and a small portion, X 10, illustrating the very large size and elongate 



shape of the zooecia. 



Lower Miocene (Bowden marli: Bowden, Jamaica. 



247 



