BRYOZOA OF THE PHILIPPINE REGION 411 



CREPIDACANTHA ALTIROSTRIS, new species 



Plate 57, fig. 9 



Description. — The zoarium encrusts Orbitoides. The zooecia are 

 distinct, separated by a deep furrow, somewhat elongated, large, 

 ovoid; the frontal is convex, finely porous, and granular. The aper- 

 ture is small, nonterminal, with convex proximal border; the poster 

 is wider than the anter; the peristome is a little salient, thin, some- 

 times crenulated; the cardelles are salient. The ovicell is small, 

 elongated, globular, carinated. The two poriform vibracula are 

 placed very high at the level of the antor. 



Measurements. — 



y Ua = 0.08 mm. 1(2 = 0.30-0.40 mm. 



Q 



Fig. 161. — Family Crepidacanthidae Levinson, 1909 



A. Crepidacantha grandis, new species, operculum, X85. B. Crepidacantha 

 papulifera, new species, operculum, X85. C, D. Mastigophora baculifera, new 

 species. C. Operculum, X85. D. Setiform spine, X85. 



Affinities. — This species much resembles Lepralia setigera MacGil- 

 livray, 1882 (<= Crepidacantha setifera, new name) but differs in its 

 wider zooecia, in its vibracula placed much higher, and in its smaller 

 ovicell which is also carinated and marginated. 



Biology. — This species is very rare. Some living specimens were 

 in reproduction in February, 1908 (38 meters). All of the specimens 

 were deprived of their lateral setiform spines. 

 Occurrence. — 



D. 5147. Sulade Island, Sulu Archipelago; 5° 41' 40" N.; 120° 



47' 10" E.; 21 fathoms; co. S., Sh. 

 D. 5179. Romblon Light, Romblon; 12° 38' 15" N.; 122° 12' 

 30" E.; 37 fathoms; hard S.; 24.2° C. 

 Holotype.—Cht. No. 8219, U.S.N.M. 



CREPIDACANTHA GBANDIS, new species 



Plate 57, figs. 4-7 



Description. — The zoarium encrusts shells. The zooecia are dis- 

 tinct, separated by a deep furrow, elongated, large, oval, surrounded 

 by a dozen of setiform spines corresponding to the dietellae, more or 



