48 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



Afjinities. — The species of this genus are generally'' incnisting but 

 this is the second species known having free branches. 

 Occw^ence. — Cretaceous (Danian) : Faxe, Denmark, 

 Holotype.—Q2it. No. 68730, U.S.N'.M. 



Genus STIGMATOECHOS Marsson, 1887. 



1887. Stigmatoechos Marsson, Die Bryozoen der weissen Schreibkreide der 

 Insel Riigen, Palaeontologische Abhandlungen. vol. 4, p. 32. 



STIGMATOECHOS PUNCTATUS Marsson. 1887. 



Plate 9, figs. 11-18. 



1887. Stigmatoechos punctatus Maesson, Die Bryozoen der weissen Schreib- 

 kreide der Insel Riigen, Palaeontologische Abhandlungen, vol. 4, p. 32, 

 pi. 2, fig. 3. 



The ovicell is an enormous hemispherical sack traversed by the 

 tubes, arranged laterally on the anterior (cellular) face; the orifice 

 of the tubes of the ovicell is often closed by a calcareous lamella. 

 This structure is eminently that of the Diaperoeciidae. 



On the anterior face the tubes are in quincunx but on the sides of 

 the zoarium they are grouped in transverse rows. 



The posterior, noncellular face is smooth and thickened. It does 

 not present the characteristic sulci of the Horneridae, as Marsson 

 believed. 



Occurrence. — Cretaceous (Danian) : Faxe, Denmark; Rugen, Ger- 

 many. 



Plesioti/pes.— Cat. No. 68931, U.S.N.M. 



Family TUBULIPORIDAE Johnston, 1838. 



This family and its genera have been discussed at some length in 

 our monograph on the Early Tertiary Bryozoa. Our purpose in the 

 present connection is to give descriptions of several species showing 

 variations in growth forms of several genera and to illustrate the 

 structure of the genus Temiysonia Busk, 1867, which proves to be a 

 member of the family. 



The genera of this family with range are as follows : 



7'w6wZi^6»ra Lamarck, 1816. Eocene (Midwayan) -Recent. 



Platonea Canu and Bassler, 1920. Oligocene (Vicksburgian)- 

 Recent. 



Centronea Canu and Bassler, 1920. Eocene. 



Idmonea Lamouroux, 1821. Cretaceous-Recent. 



Idmidronea Canu and Bassler, 1920. Cretaceous, Eocene. 



Mesonea Canu and Bassler, 1920. Eocene-Recent. 



Pleuronea Canu and Bassler, 1920. Eocene-Pliocene. 



Tretonea Canu and Bassler, 1920. Eocene. 



Erkosonea Canu and Bassler, 1920, Eocene. 



Tennysonia Busk, 1867. Recent. 



