NO. 1 DURHAM, BARNARD: EASTERN PACIFIC STONY CORALS 97 



Flabellum (?) montereyense Durham 

 Plate 14, figs. 59a-c 



Flabellum (?) montereyense Durham (1947), Geol. Soc. Am., Mem. 

 20, p. 37, pi. 1, figs. 5, 9. 



Deep within the calice the first and second cycle septa are connected 

 by heavy processes forming a parietal columella. It is possible that this 

 species should be referred to the genus Gardineria but the columella is 

 not as well-developed as in typical members of that genus. 



This species has been recorded from Point Pinos, Monterey Bay to 

 the Channel Islands, 50-93 fms. 



Hypotype: Cat. no. 59.1 (Sta. 1348-41). 



Material examined: Stas. 1348-41 (8), 1680-49 (1). Cat. nos. 

 59.1-59.2. 



Distribution : Tanner Bank, 45-46 fms; 12 mi, off Laguna Beach, 

 California, 58 fm bank, 60 fms. 



Flabellum tannerense Durham and Barnard, new species 



Plate 14, figs. 60a-c 



Corallum of moderate size, subtrochoid, attached by a narrow base, 

 slightly compressed laterally, in general appearance somewhat similar 

 to Flabellum alabastrum Moseley ; calice suboval in shape, ratio of long 

 to short axis 19-16, lateral profile of calice slightly concave, apical angle 

 of calice 45°, calicular fossa about 8 mm deep; septa in 4 cycles, septal 

 interspaces about twice the thickness of the primary septa; septa of first 

 and second cycles highly exsert (up to 3 mm), third cycle one-third to 

 one-half as exsert as the primaries and secondaries, fourth cycle septa 

 intermediate in height between third cycle and earlier cycles ; first and 

 second cycles of equal width, sharply rounded above from outer edges 

 and descending steeply into narrow fossa ; third cycle septa about two- 

 thirds the width of first and second cycle septa ; fourth cycle septa from 

 one-fourth to one-third the width of the primary and secondary cycles ; 

 inner edges of septa smooth, slightly crinkled ; septal faces with a few 

 fine granules arranged in rows parallel to septal edges ; columella not 

 readily apparent, but very deep within the calice a few anastomosing 

 trabeculae from the inner edges of the major septa are present. The wall 

 was apparently originally epithecate and secondarily thickened by stere- 

 ome on the inside ; at the present time there are only patches of epitheca 

 on the outside and near the upper edge of the calice the stereome is so 

 abraded that the outer edges of the septa resemble costae ; however, these 

 outer ends are occasionally covered by epithecal fragments. The remain- 

 ing outer surface of the corallum is eroded. 



