BRYOZOA OF THE PHILIPPINE REGION 173 



Genus CRYPTOSTOMARIA Canu and Bassler, 1927 



The ovicell is endotoichal, and deprived of any apparent orifice; 

 t is situated at the base of the zooecia where it forms a semicircular 

 convexit} 7 . The apertura bears two small lateral indentations; it is 

 deprived of denticles. 



Genotype. — Cryptostomaria crassatina Canu and Bassler, 1927. 

 Recent. Farciminaria biseriata Waters, 1888, probably belongs to 

 this genus. 



CRYPTOSTOMARIA CRASSATINA Canu and Bassler, 1927 



Plate 20, figs. 2, 3 



1927. Cryptostomaria crassatina Canu and Bassler, Classification Cheilosto- 

 matous Brvozoa, Proc. U. S. Nat. Mus., vol. 69, art. 14, p. 4, pi. 1, 

 fig. 5. 



Description. — The zoarium is free, cylindrical, bifurcated. The 

 zooecia are distinct, separated by a furrow, ogival, broad; the mural 

 rim is very thick, enlarged laterally, convex, smooth; the cryptocyst 

 is small, rectangular, very deep in its distal portion where it rises 

 perpendicularly to form the proximal border of the apertura. The 

 apertura is small, embedded, semielliptical, transverse; its proximal 

 border is a thin lip, elevated and bordered by two small, lateral 

 indentations. The ovicell is a semicircular convexity without 

 visible orifice. 



Measurements . — 



. [k = 0.08mm. „ . [is = 0.60-0.75 mm. 



Apertura , Zooecia , 



Ua = 0.12 mm. Us = 0.50-0.55 mm. 



We are ignorant of the mode of fixation of the zoarium. This is 



probably a deep-water species. Our specimens were dead. 



Occurrence. — 



D. 5574. Simaluc Island, north of Tawi Tawi; 5° 30' 45" N.; 



120° 07' 57" E.; 340 fathoms. 



D. 5577. Mount Dromedario, Tawi Tawi; 5° 20' 36" N.: 119° 



58' 51" E.; 240 fathoms; crs. S.; 12.4° C. 



D. 5579. Sibutu Island, Darvel Bay, Borneo; 4° 54' 15" N.; 



119° 09' 52" E.; 175 fathoms; fine S., Co.; 13° C. 



Cotypes.—C&t. Nos. 7973, 7974, U.S.N.M. 



Genus STOMHYPSELOSARIA Canu and Bassler, 1927 



The ovicell is endotoichal; it is opened by a wide semicircular 

 orifice placed obliquely above the operculum; it is situated at the 

 base of the distal zooecium, where it forms a very salient convexity. 

 The apertura bears two very small lateral indentations; it is deprived 

 of denticles. The apertura is terminal, adjacent distally to the mural 

 rim. 



Genotype. — Stomhypselosaria condylata Canu and Bassler, 1927. 



