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BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Fig. 191.— Genus Cellarinella Waters, 1904 



A-H. Cellarinella foveolata Waters, 1904. A. Younger part, X25. The aper- 

 ture is a considerable distance from the peristomice and at right angle to it; 22 

 tentacles. B. Older part, X 25. The peristomice is round. C. Mandible, X 85. 

 D. Zoarium, natural size. E. Natural size, nodulated form. F. Calcareous 

 section showing the underside of the distal multiporous septula, X25. G. 

 Section showing the septula from above protected by a pair of spinous processes, 

 X85. H. The spinous processes seen in longitudinal section X25 and X85. 

 (A-H. After Waters, 1904.) 



c """o' 



-Genera of the Onchoporidae 



A. Calwellia W. Thompson, 1838. C. bicornis W. Thompson, 185S, X40. B. 

 Onchopora Busk, 1852. O. sinclaiH Busk 1855, X40. C. Onchoporella Busk, 

 1852. O. bombycina Busk, 1852. D. Onchoporoides Ortmann, 1890. O. moseleyi, 

 Busk, 1884. E. Ichthyaria Busk, 1884. /. oculata Busk, 1884. 



showing a reticulate connection between the two layers of zooecia; X25. M. 

 Longitudinal section showing the lateral wall with the lateral septulae, ovicell 

 (o) and the processes (sp) over the distal septula; X12. N. A multiporous sep- 

 tula, X89. (A-M. After Waters, 1904.) 



