44 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol.61. 



their lower part; they are upward bent at their extremity, develop- 

 ing a long salient peristomie; the peristome is round, thin. The 

 ovicell is very large, elliptical, transverse, very globular, traversed 

 by the tubes. 



Diameter of peristome 0.14 mm. 



Zooecial width .20mm. 



Measurements. — { Distance between orifices .50 mm. 



Separation of orifices .50 mm. 



Length of peristomie .20 mm. 



Affinities. — This beautiful species is quite well characterized by the 

 length of its peristomie and its enormous ovicell. Unfortunately our 

 specimen had no oeciostome. It differs from Diplosolen lineatum in 

 the absence of the zooeciules. It differs from Plagioeda americana 

 in the thickness of its convex tubes (0.14 and not 0.10 mm.) and in 

 the different ovicell. 



Occurrence. — Cretaceous (Vincentown marl) : Vincentown, New 

 Jersey. 



Hdofype.— Cat. No. 68923, U.S.N.M. 



DIAPEROECIA PUNCTATA, new Bpecles. 



Plate 8, figs. 8-10. 



Description. — The zoarium is cylindrical, entalophoroid. The tubes 

 are little distinct, somewhat convex, swollen, contracted at their 

 extremity, ornamented with two large punctations irregularly placed 

 in the vicinity of the apertura. The peristome is little salient, rather 

 thick; the apertures are arranged in regular quincunx. The ovicell 

 is large, elliptical, very convex, traversed by the tubes and verj^ 

 often by their adventitious punctations. 



Diameter of peristome 0. 14 ram. 



Diameter of tubes .15 mm. 



Distances of orifices .74 mm. 



Separation of tubes .44 mm. 



Length of ovicell 1.65 mm. 



Width of ovicell 1. 00 mm. 



Diameter of branches 1.00 mm. 



Occurrence. — Cretaceous (Danian) : Herf olge (Seeland), Denmark. 

 nolotype.—Qat No. 68924, U.S.N.M. 



DIAPEROECIA TRANSVERSATA, new species. 



Plate 8, fig. 7. 



Description. — The zoarium is free; the branches are compressed 

 and narrow^ed at their extremity. The tubes are indistinct ; the peri- 

 stomes are salient, thin, irregularly placed, adjacent or scattered. 

 The ovicell is large, convex, elliptical, arranged transversally . 



Measurenients. — 



