I'lATK l.'G. 



Figs. 1-S. Mcfiiiinccid Uninin. new speiMi's (p. T^Uli. 



1. Friigiiieiits cif tlic siilid. c.vlindricMl Zdiiriiiiii, iinlnral size. 



2. Brancli with ovicell, X VZ. Tlie Deciostdiiie is in tlic form of u lilimr crescent. 



3. Bnincli witli ordiniir.v tiilx's, X 12; tlie.v iiiv liordered by u salient thread. Tlie zone 



of f;ro\vtli is visililc. 

 4. .5. Ordinary tuhes lionlercd liy a salient thread. X 2.5. 



Vick.sliurfiian : West liank Cimeculi Kiver, Ksraiiiliia ('(Uttity. .Maliaiiia. 

 Cat. No. 65391, U.S.N.M. 

 6. Slender ovicelled brancli, X 12. 



Vicksburgian : Murder Creek, east of ( 'asilclmr.x . Coneiuli County, .Maliitina. 

 Cat. No. 65392. U.S.N.M. 

 7, 8. Young tubes not b(irdere<l by a thread, X 12 and X 25. The bttse is discoidal. 

 Vicksburgian: Near Clailiorne, Monroe County, Alabama. 

 Cat. No. 6.5.393, U.S.N.M. 

 Fics. 0-25. Mcciinoecia seniota, new siiecies (p. 731). 

 9. Fragments, natural size. 

 10, 11. Specimen with salient peristome, X 12 and X 25. The distance between the peri- 

 stomes Is quite variable. 

 12, 13. Branch, X 12 and X 2.5. The zone of growth is very small. The tubes arc striated 

 transversely. 

 14. Specimen witli long, very salient peristomie, X 12. 



Vicksliurgian : West bank Coneculi River. Kseaiubia County, Abibama. 

 Cat. No. 65394, U.S.N.M. 

 15, 16. Branch, X 12 and X 25 witli separation of the peristomes less develojied. 

 17, 18. Fragment, X 12 and X 25, with long peristomie. 



19. Fragment, X 12, in a portion of which the distance between the peristomes is snailler. 



20. Longitudinal section, X 25. 



21. Tangential section. X 100, showing the usual structure of the zooecial walls. 



22. Longitudinal section through an ovicell, X 12. 



23. Transverse section somewhat tibove a bifurcation, X 25. 



24. Transverse section in a more slender branch. X 25. 



25. Normal transverse section, X 25. 



Vicksburgian: One mile north of Monroeville, Alabama. 

 Cat. No. 65395, U.S.N.M. 

 Figs. 26-30. McciiiKieria qiiineiihcrriiiic. new species (p. 7301. 



26. Zoarial fragments, natural size. 



27. Specimen. X 12, with peristomes arranged in olilique vertieells. 



28. Branch with ovicell, X 12. 



29, 30. Fragment, X 25 and X 12. showing perisl<imes in tiuincunx. 



Vicksburgian (Marianna limestone) : Salt Mountain, 5 miles south of Jack.s(ui, 

 Alabama. 



Cat. No. 6.5.396. X\S.N.SL 



157 



