6 PROCEEDINGS OF THE NATIONAL MUSEUM vor,. 60 



Genus COLEOPORA, new genus 



Greek : coleos, sheath, in allusion to the development of the shield. 



The ovicell is hyperstomial and never closed by the operculum. 

 The shield thickens at the top and forms around and above the 

 peristome a tubuuar very salient peristomie; neither lyrula nor 

 cardelles present. 



Genotype. — Coleopora verrucosa, new species. Recent. (PI. 1, 

 fig. 7.) 



Frequently the peristome is visible at the bottom of the peristomie 

 formed by the shield which serves thus as a sheath. 



Family GALEOPSIDAE Jullien, 1903 

 Genus COSCINIOPSIS, new genus 

 Greek: cosoinion, small sieve, referring to the frontal. 



The ovicell is hyperstomial, closed by the operculum and porous 

 like the frontal. The aperture bears two cardelles placed low. The 

 frontal is a tremocyst. The operculum bears two large lateral bands; 

 the two muscular attachments are removed from the border. 



Genotype. — Cosciniopsis coelatus, new species. Recent. (PI. 1, 

 fig. 8.) 



Genus STENOPSIS, new genus 



Greek : stenos, narrow, in allusion to the form of the peristomie. 



The ovicell is hyperstomial. The aperture is rounded-quad- 

 rangular, without cardelles. The peristomie is elongated. The 

 spiramen is broad and salient. The frontal is a tuberose tremocyst. 

 The operculum is thin, semielliptical and without muscular attach- 

 ments. Avicularia are present. 



Genotype. — Stenopsis (Porina) fenestrata Smitt, 1872. 



Range. — Eocene (Jacksonian) — Recent. 



Family STOMACHETOSELLIDAE Canu and Bassler, 1920 



Genus CIGCLISULA, new genus 

 Greek : cigclis, grating, in allusion to the aspect of the ovicell. 



The ovicell is hyperstomial, opening in the peristomie, never closed 

 by the operculum, with the frontal perforated by very large pores. 

 The frontal is a thick tremocyst with tubules. The apertura is 

 oval ; the peristomice bears a wide pseudorimule bordered by a peri- 

 stomial avicularium. The operculum bears two large lateral bands 

 terminated by two strong muscular attachments. There are large 



