NO. 1 DURHAM, BARNARD: EASTERN PACIFIC STONY CORALS 91 



Holotype: AHF no. 18. 



Type locality: Sta. 170-34, Stephens Bay, Chatham Island, Gala- 

 pagos, 32 fms. 



Material examined: The type. 



Genus NOMLANDIA Durham and Barnard, new genus 



Corallum discoid, upper surface moderately arched, adherent to sub- 

 stratum by means of a basal plate; thecal wall absent; septal trabeculae 

 in one fan system, paliform lobes irregularly present before third cycle 

 of septa ; columella fascicular, composed of a few broad, twisted lamellae, 

 attached here and there to the inner ends of the first and second cycle 

 septa. 



Remarks: Except for the discoid shape and the lack of a thecal 

 wall, this genus is similar to Bathycyathus. 



Type species: Nomlandia calif ornica Durham and Barnard, new 

 species. 



Nomlandia californica Durham and Barnard, new species 



Plate 12, fig. S3 



Corallum discoid, low, upper surface moderately arched, adherent 

 to substratum by means of a basal plate ; thecal wall absent ; septa in 4 

 cycles, some members of the fifth cycle present; septal interspaces 1-2 

 times the thickness of the primary septa; septa of first cycle highest and 

 broadly arched, following cycles each successively less exsert and less 

 highly arched, with fifth cycle represented by low ridges; most of third 

 cycle septa with moderately small, curled paliform lobes at their inner 

 ends; septal faces covered with lines of large, flattened, shelf-like gran- 

 ules parallel to upper margins of septa, indicating successive growth 

 stages; toward columella these granules may fuse between the septa; 

 columellar fossa moderately deep, columella composed of a few, broad, 

 twisted lamellae, attached here and there to the inner ends of the first 

 and second cycle septa, not raised above the bottom of the fossa. 



Dimensions of holotype: Diameters of corallum 7 and 10 mm, 

 height 2.5 mm. 



Holotype: AHF no. 19. 



Type locality: Accession no. 1236, 1200 yds ofiC Richardson Point, 

 San Miguel Island, on a sunken buoy in 45 fms, Earl Fox, collector, 

 Dec. 1948. 



Material examined: The holotype. 



