ABT. 14 FOSSIL AND EECENT BRYOZOA CANU AND BASSLER 43 



Family SCRUPOCELLARIIDAE Levinsen, 1909 



Genus SCRUPOCELLARIA Van Beneden, 1845 



SCRUPOCELLARIA RETIFORMIS Pourtales, 1867 



1872. Caberea retiformis Smitt, Floridan Bryozoa. Kong. Svenska Veten- 

 skaps-Akademiens Handlingar, vol. 10, no. 11, p. 16, pi. 5, figs. 

 43-46. 



1913. Cauda retiformis Waters, Bryozoa from Zanzibar. Proceedings 



of the Zoological Society of London, p. 479, p. 69, figs. 1, 2, 6. 

 (Bibliography and geographic distribution.) 



1914. Canda retiformis Osburn, Bryozoa from the Tortugas Islands, Florida. 



Publication Carnegie Institution, Washington, no. 182, p. 192 

 (cited only). 



This species has not been found in America since 1872. We have 

 observed some beautiful specimens. The differences from Canda 

 caraihica Levinsen, 1909, have been given by Osburn, 1914. In 

 accordance with Harmer's studies, this species should be classified in 

 Scrupocellaria. 



Occurrence. — Albatross Station D. 2405, Gulf of Mexico; 28° 45' 

 00" N.; 85° 02' 00'' W.; 30 fms.; gray sand, broken 

 coral. 

 Albatross Station D. 2639, Straits of Florida; 25° 04' 



50" N.; 80° 15' 10" W.; 56 fms.; coral sand. 

 Florida, 68 and 270 meters (Smitt). 

 Pliocene: Minnitimmi Creek, Bocas Island, Almirante 

 Bay, Panama. 



Family HIANTOPORIDAE MacGillivray, 1895 

 Genus TREMOGASTERINA Canu, 1911 



The oviceU is hyperstomial and closed by the operculum. The 

 aperture bears two small cardelles; the operculum, often chitinized, 

 is attached to the ectocyst; the peristome bears three to five hollow 

 spines. The frontal is placed above the ectocyst; it is formed of an 

 olocyst surmounted by a rugose or granulated pleurocyst more or less 

 developed; a central area is perforated by reniform pores. The 

 zooecia are separated by inter junctural pores. Large adventitious 

 avicularia appear between the apertures. 



Genotype. — Tremogasterina problematica Csmn, 1911. Recent geno- 

 type, Tremogasterina {Lepralia) celleporoides Busk, 1884. 



Range. — Cretaceous (Rocanean) — Recent. 



The known species are as follows: 



Tremogasterina {Lepralia) celleporoides Busk, 1884, Australia. 



Tremogasterina (Escharipora) mucronaia Smitt, 1872, Florida. 



Tremogasterina granulata, new species, Florida. 



Tremogasterina ventricosa, new species, Atlantic off Carohna. 



Tremogasterina lanceoloM, new species, Gulf of Mexico. 



