Plate 19. 



Figs. 1-3. Klectia i)iirriiinil( r. new species (p. 77). 



1. Small portion of a zoariuiu, X 20, exhibiting a uniserial l)rancli. 



2. A nmltisei-ial portion of the same zoarium, X 20. 



3. Ancestrnlar portion, X 20. 



Lower Jacksonian (Moofl.vs marl) : Two an<l one-half miles north of Robert. Newton 

 County, Mississippi. 



Cat. Xo. 63S65, T'.S.X.M 

 Fig. 4. fiiiiimni tiiierciilum Lonsdale, 1S4.^ (p. ,SOl. 



A zoarium, X 20, with a calcified zooeeinm among the ordinary one.s. 

 Middle Jack.sonian (Castle Hayne limestone) : Wilmington North Carolina 

 Cat. No. 63866. L.S.N.M. 

 Fig. .j. Mcinhniniporiiio mnexoJiim, new species, (p. 00). 



Surface of type-specimen, X 20, showing the absence of basal olocyst of zooecia. 

 Lower Jacksonian ( iloodys marl) : Two and one-half miles north of Robert, Newton 

 Coimty, Mississippi. 



Cat. No. 63S76. Tt.S.N.M. 

 FiG.s. 6,7. Coiioiieiiiii tnheroaiini. new species (p. Oo). 



6. The incrnsting typespeeimen. X 20, showing the ch.-iracteristic interopesial cavities 



and the frontal tuberosity. 



7. Portion of the same zoarium. X 20, exhibiting the small elliptical ancestrula. 

 Lower Jack.sonian fMoodys marl) : Two and one-half miles north of Robert. Newton 



County, Mis.sissippi. 

 Cat. No. G386S, F.S.X.M. 

 Figs. 8-]0. Voitopciim hooclceri Haime, 1850 (p. 01). 

 S. Surface of the incrusting zoarium, X 20. 



0. Part of another zoarium. X 20, illustrating the lumiplike gymnocyst and tlie ellip- 

 tical impression left upon the substratum. 



10. An abraded zoarium, X 20. Two lateral and one distal septulae are to be noted. 

 Lower Jacksonian (Jloodys marl): Jackson. Mississijipi. 



Cat. No. 63869, U.S.N.M. 

 Figs. 11-13. Conoiieum coiwaruni. new species (p. !i2). 



11. Portion of a large incrnsting zoarium, X 2i). A number of the zooecia are closed by 



a perforated lamina. 



12. Another zoarium, X 20. in which the con.-ave cryptocyst and the perfm-.-itions in the 



substratum are shown. 



13. A third zoarium, X 20, exhibiting the iuteiopesial cavities especially well. 

 Lower Jacksonian (Moodys marl): Jackson. Mississiitpi. 



Cat. No. 03870. U.S.N.M. 

 Fig. 11. Mfiiihnniiiioiiiia cldrifoniiis. new species (p. 97). 

 The free dnb-shaped type example, X 20. 



Jriddle .Jacksonian (Castle Ha.vne limestone) : Wilmington, North Carolina 

 Cat. No. 63871, T'.S.N.M. 

 20 



