10 ALLAN HANCOCK ATLANTIC EXPEDITION REPORT 



Genus GUPULADRIA Canu and Bassler 1920 

 Gupuladria canariensis (Busk), 1859 

 Smitt 1873: 10 ( Membranipora) . Osburn 1914: 194 (Cupularia guinien- 

 sis); 1940: 354. Canu and Bassler 1928: 15. 



Distributed around the world in warmer waters. Smitt recorded it 

 from Florida; Osburn for the Tortugas Islands, Florida, and Porto 

 Rico, and Canu and Bassler for the Gulf of Mexico and the Straits of 

 Florida. The saucer-shaped, free colonies are easily distinguished from 

 other species of that form by the open membranous front of the zooecia. 



Distribution.— Stations A14-39, A27-39, A42-39, A48-39, At503, 

 At505, At511, At517, At526, At527, and At529. These stations place 

 the locations at Cape la Vela and Galera Point Light, Colombia; Mar- 

 garita, Aruba, Tortuga and Cubagua Islands at 2 to 41 fms. 



Family Electrillidae d'Orbigny 1851 

 Genus ELEGTRA Lamouroux 1816 

 Electra tenella (Hincks), 1880 



Hincks 1880:376 (Membranipora tenella). Marcus 1937:38. 



It is interesting to find this species again in this region. Hincks de- 

 scribed it from Florida, but it has not been noted in this area since. 

 Marcus found it in Santos Bay, Brazil and gave an excellent discussion 

 of its characters and relationships. It is a very thin and delicate species 

 and only a small fragment was observed in the present collection. 



Distribution. — Station At503, 1 mile SW of Cape la Vela, Colombia 

 at 10 fms. 



Family HincksinidaC Canu and Bassler 1927 



Genus GANUA Davis 1934 



The genus Canua Davis was established to replace Alembrendoecium 

 Canu and Bassler, which was wrongly founded on Ainphiblestrum papil- 

 latum Busk, a species which was later found to have hyperstomial ovi- 

 cells and dependent avicularia on the gymnocyst. A. papillatum was cor- 

 rectly placed by Busk. In the genus Canua the ovicells are endozooecial 

 and the avicularia vicarious (interzooecial). 



Ganua compressa (Osburn), 1927 

 Osburn 1927: 124 ( Membrendoeciuryi compressum) ; 1940:358. 



The encrusting zooecia have the frontal area partially closed in 

 proximally by a granular cryptocyst, leaving an irregularly pyriform 



