ART. 2i;. CYCLOSTOMATOUS BEYOZOA CANU AND BASSLER. 47 



DIPLOSOLEN LINEATUM Gabb and Horn, 1862. 

 Plate 9, fig. 20. 



1862. Diastvp<yra lincata Gabb and Horn, Monograph of the fossil Polyzoa 

 of the Secondary and Tertiary formations of North America, Journal 

 Academy of Natural Sciences of Philadelphia, ser. 2, vol. 5. p. 172, pi. 

 21, fig. 62. 



1868. Diastopora lincata Ulkich and Bassler, Bryozoa, Cretaceous Pale- 

 ontology of New Jersey, Geological Survey of New Jersey, Paleontology, 

 vol. 4, p. 316, pi. 21, flgs. 3, 4. 



i Diameter of peristome 0.12 mm. 

 Distance between orifices .50 mm. 

 Separation of orifices .54 mm. 



The zoarium is hollow and subcylindrical ; it therefore probably 

 incrustecl delicate algae at their bifurcation. The zooeciiiles are 

 small, very constant; their diameter is a fourth of that of the ordi- 

 nary tubes. They escaped tlie observation of (Tabb and Horn, who 

 do not mention them in their description. 



The ovicell is quite large, very salient, globular, elliptical, with 

 well defined outlines. Unfortunately our specimen has no oeciostome. 



A certain number of tubes are closed by a diaphragm ; the orifices 

 are elliptical ; the zone of growth is short ; it is therefore very prob- 

 able that the tubes bear a very long, salient, and quite fragile peri- 

 stomie. 



Occu7^ren€e. — Cretaceous (Vincentown marl) : Yincentown, Tim- 

 ber Creek and Mullica Hill, New Jersey. 



Phsiotypes.— Cut No. 68929, U.S.N.M. 



DIPLOSOLEN ENTALOPHOROIDEA, new species. 



Plate 9, figs. 21, 22. 



Description. — The zoarium is free, cylindrical, entalophoroid, bi- 

 furcated. The tubes are distinct, separated by a little salient thread 

 and scattered. The surface is almost smooth. The peristomes are 

 little salient, thin, orbicular, arranged in regular quincunx. The 

 zooeciules are small, distinct, and their aperture is generally placed 

 in the vicinity of the zooecial orifice. The ovicell is very large, globu- 

 lar, elongated elliptical, traversed b}^ the tubes and by the zooeciules, 

 wider than the branches. 



Diameter of peristome 0.08 mm. 



Zooecial width .10 mm. 



Distance of tubes .32 mm. 



Mea^ure7n£nts. — Separation of tubes .48 mm. 



Diameter of branches .75 mm. 



Width of ovicell 1.25 mm. 



Length of ovicell 2.00 mm. 



