. Carnegie Institution of Washington publication. . The Bryozoa of the Tortugas Islands, Florida. 197 is brief and his figure (pi. 4, fig. 102) does not show the avicularium nor the spicules, so I include it in the above synonymy with some doubt. I have received from Professor A. E. Verrill a fine, erect, convoluted, bilaminatc colony taken on the west coast of Florida. Levinsen (, p. 183) records the variety lahiata from Jamaica and my Florida specimens agree fairly closely with this variety. Thalamoporella granulata Levinsen. Levinsen, 1909, p. 188. In the drift were found several dead s
. Carnegie Institution of Washington publication. . The Bryozoa of the Tortugas Islands, Florida. 197 is brief and his figure (pi. 4, fig. 102) does not show the avicularium nor the spicules, so I include it in the above synonymy with some doubt. I have received from Professor A. E. Verrill a fine, erect, convoluted, bilaminatc colony taken on the west coast of Florida. Levinsen (, p. 183) records the variety lahiata from Jamaica and my Florida specimens agree fairly closely with this variety. Thalamoporella granulata Levinsen. Levinsen, 1909, p. 188. In the drift were found several dead specimens incrusting shells and calcareous algffi. The sinuated character of the ori- fice with the strong lateral denticles; the nearly equal opesiulae reaching the mar- ginal wall and with granulated edges; , , , . 1 . ^\^ i-U Fig. 8.—Thalamoporella granulata Levinsen. the dorsal Opesmlar outgrowths; tne The variety in which the avicularium , ,1 , r , 1 • 1 11^. chamber is closed basally, except for two granulated character of the zooecial walls; opesiute. the form of the large, spatulate avicularian mandible, and the character of the spicules, all approach closely to T. granulata. The only difference to be observed is in the basal portion of the avicularian chamber. When completely calcified this structure becomes closed by a calcareous lamina up to the hinge denticles of the mandible, leaving only two openings similar in appearance to the opesiulae of the ordinary zooecia, except that they are much smaller and are removed from the lateral wall. Thalamoporella falcifera (Hincks). HiNCKS, 1880&, p. 380 (Steganoporella rozieri, (orm falcifera).—Levinsen, 1909, p. 186. A single specimen of this species, which is distinguished by the falcate mandible of the avicularium, was taken in shallow water growing on algae. Apparently this species grows only on algae, if one may judge from the comparatively small number of records. It has a wide distribution and is recorded from
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