FLORIDAN iiRYOZOA. 



79 



Plate It.' 



Fig. 85; Biflustra Lacroixii; part of a colony, with elongated zocecia. 

 » 86; Another part of the same colony, with the areae of the zocecia more rounded. 

 » 87; Part of another colony of the same species, in a lower degree of calcification, with less marked gra- 



nulation, on the margin of the areas. 

 » 88; Part of another colony of the same species, in a low degree of calcification, with rounded arefe of 



the zocecia. 

 » 89; Biflustra denticulata; part of a colony, without tubercles and with scarcely marked deuticulations 



in the areas. 

 » 90; Another part of the same colony, provided with tubercles at the angles of the zocecia. 

 » 91; Part of another colony, provided with tubercles at some of the zocecia, deprived of them at the other, 



and showing the denticles in the arete more developed. 

 » 92; Biflustra /Savartii, some of the younger zocecia, of a more elongated form, in the higher part of a 



stem. 

 » 93; Some of the older zocecia, of a more quadrate form, in the lcwer part of the same stem. 

 » 94; Part of the back (internal) side of a tubiform stem of the same species. 

 » 95; The same species, nat. size. 



» 96; Steginoporella elegans; part of a colony, covered by its membranous ectocyst. 

 » 97; Part of another colony, deprived of its primary ectocyst. 

 » 98; One separate zocecion of the same colony. 



» 99; The lateral wall of some zocecia, as separated from their neighbours. 

 » 109; An expanded, foliaceous stem of the same species. 

 » 101; One colony, in the Sipihonella-gYowth, of the same species. 

 » 102; Steginoporella Rozierii. 



Plate Y: 



103; Membraniporella Agassizii, some of the younger zocecia, from the tip of a colony. 



104; An older zocecion with ocecion, from the lower part of a stem, where the interstitial warts cover the 



lateral parts of the front side of the zocecia. 



105; From a yet older part of the same stem, where the warts are growing över the zooscial areas. 



106; Part of a stem of this species, nat. size. 



107; Cribrilina radiata, some zocecia from the margin of a colony, in a lower degree of calcification. 



108; The same species, the one zocecion with an ocecion fixed at it, in a higher degree of calcification, 



109; Cribrilina innominata, some zocecia from the margin of a colony. 



110; Another part of the same colouy, nearer to its centrum, in a higher degree of calcification. 



111; Oribrilina fi gularis, in a lower degree of calcification. 



112; The same species, in a higher degree of calcification. 



113; Escliaripora (?) mucronata. 



114; Another part of the same colony. 



115; A third part of the same colony, with ocecia and with returned avicularia. 



116; Porina serrulata, some of the younger zocecia, from the tip of a stem. 



117; From a lower part of the same stem. 



118; A yet older part of the same stem. 



119; Dififerent forms of the zocecial aperture, from the same stem. 



120; The same stem, growing on a Sertularia, nat. size. 



121; Young zocecia from the tip of another stem. 



122; Part of the same stem, as the preceding figure, with overgrown zocecia and ocecia. 



123; From the margin of the same stem, with the great avicularia. 



124; Different forms of the zooscial aperture, on the same stem. 



125; The same stem as that of figs. 121 — 124, nat size. 



Plate VI: 



126; Porellina ciliata, the centrum of a colony. with its first, Täta'- form zocecion. 

 127; Another part of the same colony. 

 128; Young zocecia, at the margin of another colony. 



129; An older part of the same colony, as that of the preceding figure, with ocecia and with the över- 

 bridged secoudary aperture. 



