Hamilton Group, 



179 



BRYOZOANS OF THE HAMILTON GROUP. 



(Including only the genera preceding the Fenestellidae.) 



PALESCHARA, Hall 



Paleschara intercella, n. sp. 

 Foliaceous expansions; cells polygonal, in contact; diameter .33 

 mm. ; maculae numerous, slightly elevated, centers distant 5 mm., 

 their cells larger than others ; between the cells are cellules equal m 

 number to the cells, quadrangular, square or triangular; diameter .17 

 mm ; cells sometimes circular, walls with triangular spines. 



Locality — York, New York. 



Paleschara reticulata, n. sp. 

 Foliate expansions ; cells polygonal, in contact; diameter .25 mm., 

 frequently arranged in undulating, intersecting rows; in this arrange- 

 ment the cells are quadrangular, giving to the frond a reticulate ap- 

 pearance; centers of maculae distant 3 mm., slightly elevated and 

 composed of larger cells, which in perfect specimens were probably par- 

 tially hooded. 



Locality — York, New York. 



Paleschara variacella, n. sp, 

 Foliaceous expansions ; cells in contact, usually hexagonal ; diame- 

 ter .25 mm.; centers of maculae distant 6 mm., composed of larger 

 cells; diameter .80 mm; cell walls with strong angular spines; no 

 intermediate cellules. 



Locality — York, New York. 



Paleschara amplectens, n. sp. 

 A thin expansion, usually encrusting crinoid stems ; cells polygonal, 

 m contact, irregularly disposed; diameter ,20 mm.; no maculae; fre- 

 quent nodes or spines. 



Paleschara ? (Lichenalia ?) pertekuis, n. sp. 

 Foliaceous expansions; greatest thickness observed, .20 mm.; cells 

 usually circular or oval, sometimes polygonal ; some portions of walls 



