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BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 



papillae-. J2 



papilla hoi 



lumen 



FIG. 84. Genus Pitdlina Jullipn, 1SS6. 



A-E. PueUlna galtyae Busk, 1S52. A. Zooecia and ovicells. X 26. (After Hincks, 1880.) 

 B. Zooecia from the basal surface. The dietellae (psch) surround the zooecia and their ovicells, 

 X 40. (After Levinsen, 1909.) C. Opercular valve. X S~>. (After Waters, 187S.) D. Anterior 

 portion of a zooecium of the ordinary form. E. Variety, with interesting duplicated lateral 

 lacunae. (Figs. D. E. After Norman, 1903.) din, duplicated lateral lacuna; la, lacuna : ;//). 

 papillae holes. 



F. PueJlina innominata Couch, 1844. Sketch showing terminology. Three costules of a zooe- 

 cium showing the lateral papillae and a small opening outside the arch of the costule, into the 

 body of the polyzoon, which a papilla has occupied. (After Norman, 1903.) 



G-J. Puellina radiata Moll, 1803. G. Zooecia with avicularia. X 25. H. Avicularian man- 

 dibles. X 50. (G, H. After Hincks, 1880.) I. Avicularian mandible, X 85. (After Waters, 1885.) 

 J. Primary zooecium (pz) and three younger zooecia. The frontal flustrine membrane (;>-) is 

 overarched by a proximal scutum-like spine (sc) while the ten other spines bear minute horizon- 

 tal calcareous lobes which project from the inner sides. The oral spines of the zooecium bear 

 similar lobes. In all except the primary zooecium i anoestrula) the series of oral spines is con- 

 tinued by the pair of elongated membraneous spines <xp) (papillae of Norman) on either side 

 of the median pore <mp) and further by the small papillae (sp') (papillae holes of Norman i 

 which correspond with the marginal spines of the primary zooecium. The series of pores are in 

 the same radii as those modified spines. The pore chambers (dietellae) are not indicated, 

 i After Harmer. 1902.) 



