10 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
1917. 
Cantj, Ferdinand, and Bassler, Ray S. A Synopsis of American Early Tertiary Cheilostoine 
Bryozoa. Bulletin 96 U. S. National Museum, 87 pp.. 6 pis. Present a classification and 
describe the following new genera and the genotype of each whenever the species is new : 
Acanthocella, Acanthionella, Adenifera, Aechmella, Bathosella, Cribrendoecium , Cystisella, 
Dacryonella, Didymosella, Diplopholeos, Enoplostomella, Floridinella, Gastropella, Hip- 
padenella, Hippellozoon. Hippomenella, Hippozeugosella, Kleidionella, Kymella, Leiosella, 
Membraniporidra, Membrendoecium, Metracolposa, Metradolium, Metrocrypta, Metro- 
periella, Ochetosella, Odontionella, Ogivalina, Otionella, Perigastrella, Plagiosmittia, 
Periporosella, Red any eh o ce 1 1 a , Shizaropsis, Scliizellozoon, Schizemiella, Schizobathy sella 
Schizomavella, Schizopodrella, Schizorthosecos, Semihaswellia, Stamenocella, Stephano- 
sella, Stomachetosella, Tremotoichos, Triphyllozoon, Tubucella, Velumella, Vibraeellina. 
SYNONYMIC REFERENCES. 
The following alphabetic list gives the present position of all the North Ameri- 
can early Tertiary bryozoa described previously to 1917. This list supplements the 
chronological catalogue of papers printed on pages 7 to 10. By comparison with 
this catalogue it will be noted that the larger part of the old species has been 
identified, with the exception of those contained in the work of De Gregorio, 1890. 
This author’s descriptions and illustrations are so poor and his localities so indefinite 
that in the majority of cases it has been impossible to consider his species as 
recognizable. 
REFERENCES OF PREVIOUSLY DESCRIBED NORTH AMERICAN EARLY TERTIARY BRYOZOA. 
Batopora convivalis De Gregorio, 1S90. Not recognized. 
Biflustra (?) supradubia De Gregorio, IS90. Not recognized. 
Biflustra torta Gabb and Horn, 1862. See Euritina torta. 
Cavaria dumosa Ulrich, 1901. See Partretocycloecia dumosa. 
Cellepora cycloris Gabb and Horn, 1862. See Perigastrella cycloris. 
Cellepora inornata Gabb and Horn, 1862. See Trypostega inornata. 
Celleporaria figula De Gregorio, 1S90. Not recognized. 
Cribrilina crassula Ulrich, 1901. See M embraniporella crassula. 
Cribrilina modesta Ulrich, 1901. See Membraniporella modesta. 
Crisia laeta De Gregorio. Not recognizable. 
Cupularia discoidea Lea. Not recognized. 
Discoflustrellaria bouei Gabb and Plorn, 1862. See Trochopora bouei. 
Discosparsa varians Ulrich, 1901. See Diaperoecia varians. 
Entalopliora amoena De Gregorio, 1S90. See Heteropora amoena. 
Entalophora proboscidoides Gabb and Horn, 1862. Possibly Mecynoecia proboscidea. 
Eschara digitata Morton, 1834. See Coscinopleura digitata. 
Eschara incumbens Lonsdale, 1845. See Schizopodrella viminea. 
Eschara linea Lonsdale, 1845. See Schizopodrella linea. 
Eschara ovalis Gabb and Horn, 1S62. Not recognized. 
Eschara petiolus Lonsdale, 1845. See Hippodiplosella petiolus. 
Eschara spongiopsis De Gregorio, 1S90. See Cyclicopora spongiopsis. 
Eschara texta Gabb and Horn, 1862. See Schizopodrella viminea. 
Eschara tubulata Lonsdale, 1845. See Smittina tubulata. 
Eschara viminea Lonsdale, 1S45. See Schizopodrella viminea. 
