134 BULLETIX 125, UNITED STATES NATIONAL, MUSEUM. 



LEPKALIA MONTIFERA L'lrich and Bassler, 1904. 



Plate 18, fig. 11. 



1904. Lepralia monti/era Ulrich and Bassler. Maryland Geological Survey, Miocene, p. 424, pi. 

 IIG, fig. 5. 



The original description is as follows: 



Zoarium parasitic, in one or more layers. Zooecia not regularly arranged, subovate, averaging 

 0.5 mm. or a trifle more in length and about 0.35 mm. in width. Orifice oblique, depressed in front, 

 transversely subovate, Vtroadly sinuate below; peristoue scarcely thickened. Central portion of surface 

 very high, the slopes traversed by rows of large punctures in radially disposed furrows. Ovicells not 

 observed; nor avicularia, unless certain elongate-acuminate, curved depressions, with a pore at the 

 broader lower cxtermity, that sometimes may be observed close to the rim of the orifice, are of that 

 nature. This rather highly ornamented form reminds in certain respects of Cribrilina, but on the whole 

 it agrees better with Lepralia. The strikingly monticular elevation and strongly puncto-radiate marking 

 of the surface of the zooecia will, we believe, serve very well in distinguishing the species. 



We are unable to classify this species generically on account of the absence of 

 ovicell on the type and only specimen. 



The interareolar costules are larger than in Hippoporella costulata, but the 

 present species differs in the absence of a hollow infraoral mucro and of the small 

 adventitious avicularia. 



Occurrence. — Miocene (St Mary's formation): St. Marys River, Maryland 

 (very rare). 



Holotype.—C&t. No. 68614, U.S.N.M. 



LEPRALIA CRIBROSA? Maplestone, 1900. 



Plate 36, fig. 1. 



1900. Lepralia cribrosa Maplestone, Further descriptions of the Tertiary Polyzoa of Victoria, pt. 6, 

 Proceedings Royal Society, Victoria, vol 13, pt. 2, p. 210, pi. 35, fig. 16. 



We are not certain of our determination, although the specimen studied is a 

 superb one. If the magnification indicated by Maplestone he exact our species 

 would be somewhat smaller. The absence of an ovicell does not allow the species 

 to be classified generically. Two very small cardeUes separate a large anterfrom a 

 smaller poster. 



Occurrence. — Pleistocene: Santa Monica, (Long wharf Canyon), California 

 (very rare). 



Geological distribution. — Miocene of Australia (Maplestone). 



Plesiotype.—C&t. No. 68615, U.S.N.M. 



Group 4. PERISTOMEILAE Canu and Bassler, 1917. 

 Genus TRYPEMATELLA Canu and Bassler, 1920. 



1920. Tn/pona^ci^a Canu and Bassler, Monograph North American Early Tertiary Bryozoa, Bul- 

 letin 106, U. S. National Museum, p. 417. 



The ovicell is hyperstomial and closed by the operculum for the passage of the 

 eggs. The apertura is semilunar with proximal border a little concave. The 

 frontal bears some lateral areolar pores (pleurocyst on olocyst). Two large lateral 

 avicularia are placed below the apertura. 



Genotype.— Trypematella papulifera, new species. Pleistocene. 



