NO. 5 OSBURN : BRYOZOA 35 



too imperfect to afford a satisfactory description. The above description is 

 taken from a specimen (holotype) collected by Dr. J. S. Garth at Station 

 A87-46 at Marco Island, Florida. 



Type.— AHF no. 6. 



Type locality. — Station A87-46, Marco Island, Collier County, 

 Florida, shoal. 



Distribution. — Station A30-39, A33-39, At503, and At512. These 

 stations place the locations at Cubagua and Coche Islands and Cape la 

 Vela, Colombia, at 2 to 10 fms. 



Aimulosia uvulifera (Osburn), 1914 



Osburn 1914:210 (Lepralia); 1940:427 (Lepralia). 



This species appears to belong in the genus Aimulosia. The nature 

 of the frontal aperture and ovicell all seem to conform sufficiently. It 

 was originally described from a single small specimen from the Tortugas 

 Islands, Florida, and later scanty material was obtained from Porto 

 Rico. The several fragments in the Hancock material add nothing to 

 my former accounts, except that I am able to discover an occasional 

 minute avicularium hidden beneath the side of the projecting umbo. 



The species differs from A. floridana in the much heavier umbo 

 which becomes tridentate at the tip, in the broader ovicell with a more 

 distinct labellum, and in the distribution of the avicularia which are 

 scattered over the frontal and are not regularly placed at the side of the 

 aperture. 



Distribution.—Stations A12-39, A18-39, A43-39, At503, At504, 

 At505, and At511. These stations place the locations at Cape la Vela, 

 Colombia; San Nicolaas Bay, Aruba Island, Cubagua and Tortuga 

 Islands at shore to 71 fms. 



Subfamily MicrOpOrellinae Bassler 1935 



Genus MICROPORELLA Hincks 1877 



Microporella ciliata (Pallas), 1766 



Smitt 1873:26 (Porellina ciliata). Osburn 1914:208; 1927:129; 

 1940:432. Canu and Bassler 1928: 110. 



Cosmopolitan. Smitt listed it for Florida; Osburn for the Tortugas 

 Islands, Florida, Curagao Island, and Porto Rico; Canu and Bassler for 

 the Gulf of Mexico and the Straits of Florida. 



Distribution. — Stations A32-39, 3 miles N of Coche Island at 19 to 

 33 fms, and At512, Cubagua Island at 2 fms. 



