244 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Genus UBAGHSIA Jullien, 1886 



Castenoporinae in which there is a tertiary front wall (lamina 

 peristomica of Jullien), largely if not entirely formed by the secondary 

 thickening and lateral spreading of the apertural spines until neigh- 

 boring expansions meet and fuse; the distal apertural spines are 

 branched. (Lang, 1922.) 



Genotype. — Steginopora reticulata Ubaghs, 1865. Cretaceous. 



Genus DISTEGINOPORA D'Orbigny, 1851 



Castanoporinae in which there is a tertiary front wall, the lamina 

 peristomica of Jullien, largely if not entirely formed by the upgrowth 

 and lateral expansion of paired avicularia; apertural spines not 

 branched; colony erect, bilaminar. (Lang, 1922.) 



Genotype. — Disteginopora horrida D'Orbigny, 1850. Cretaceous 

 (Campanian). 



Genus SCORPIODINA Jullien, 1886 



Zooecia in which the frontal is formed by robust ribs promptly 

 fused after the talon to form a broad sternum entirely deprived of 

 furrows and of pores, or the proliferation gives rise to large excres- 

 cences of irregular forms. Orifice subcircular, deprived of marginal 

 spines. 



Genotype. — Scorpiodina (Lepralia) scorpioides Manzoni, 18G9. 

 Miocene. 



This genus is perhaps not a member of the Costulae. 



Genus JOLIETINA Jullien, 1886 



The ovicell is endozooecial and closed by the operculum. The 

 aperture is semicircular with a slightly concave poster. The frontal 

 is formed by robust ribs, separated by furrows, at the bottom of 

 which are large rounded pores. There are large interzooecial and 

 sporadic vibracula on which the setum operates on an incomplete 

 pivot. 



Genotype. — Jolietina (CribriUna) latomarginata Busk, 1884. Recent. 



Family ACROPORIDAE Canu, 1913 



This family and its component genera are described and illustrated 

 in our Monograph of North American Early Tertiary Bryozoa. No 

 species of the family have been found in the Philippine waters by us. 



Family CYCLICOPORIDAE Hincks, 1884 



We are preserving this family provisionally for the two genera, 

 Cyclicopora Hincks, 1884, and Kymella Canu and Bassler, 1917, 

 which in 1920 we described and illustrated as miscellaneous genera 



