AMERICAN EARLY TERTIARY BKYOZOA. 



227 



i'. Midwayau (Clayton limestone) : Mabelvale, near Little Rock, 

 Arkansas (common) ; 1 mile west of Fort (iaiues. (teoriria (rare) ; 23 miles north- 

 east of Ripley, Mississippi (rare) ; Luverne. Crenshaw County. Alabama (rare). 

 < (> t i/pcs. Cat, No. (WS02, U.S.N.M. 



K. Aechmella F. Micropora G. Hoplocheilina H. Vibracella 1. Lunularia 



FIG. 61. Genera of subfamilies Microporidae Hincks, 1SSO, and Lunulariidae Levinseu, 1909. 



A. FloridineUa vicksburgica Canu and Eassler, 1!MT. : 20. Vicksbnrgian, one mile 

 north of Monroeville, Alabama. 



I'., h'tisxcliuiui IHII T//""'". n'\v species, X 20. Yicksburgian, one mile north of Monroeville, 

 Alabama. 



C. Dacryonella octonrtria C'auu and Bassler. 1937, X 20. Middle Jacksonian, Wilmington, 

 North Carolina. 



D. Garyantiiu liili'ns Busk. 1859. Crag of England. 



E. AcchmeUa flUmargo Canu and Bassler. 1917, X 20. Upper Jacksonian, Escarnbia County, 

 Alabama. 



P. Micropora. coriaccu Esper, 1791. X 20. Middle Jacksonian, Wilmington, North Carolina. 



G. Boplocheilina gin'i-tahilin Canu, 1911. Rocanean of Argentina. 



H. Yibracella trapesoidca Reuss, 1864. Priabonian of the Yicentin. 



I. Luntilaria distant! Lonsdale, 1845, X 20. Middle Jacksonian, Wilmington, North Carolina. 



Subfamily MICROPORIDAE Hincks, 1880. 



Bibliography (Anatomical). 1886, JITLLIEN, Mission scientifique du Cap Horn, Bryozoaires, 

 vul. 6, pi. 14. 1900. CALVET, Contribution a Fhistoire uaturelle des Bryozoaires ectoproctes 

 marins. Travaux de 1'Institut de Zoologie de 1'Universite 1 de Montpellier, Mem. No. S, pi. S. 

 figs. 11, 12. 1902. HARMER. On the Morphology of the Cheilostomnta. Quarterly .Tcnirn:il 

 Mirrosfdiiirnl Science, vol. 46, p. 316, pi. 17, fig. 51 : pi. 18. figs. 57. 58. 1900. LEVINSEX. Mor- 

 phological and Systematic Studies on the Cheilostomatous Bryozoa, p. 361, pi. S, fig. 3. 



The ovicell is enclozooecial. The parietal muscles, attached to the ectocyst, 

 pass through the calcareous cryptocyst. either by the opesiular indentations or 



