NO, 1 DURHAM, BARNARD: EASTERN PACIFIC STONY CORALS 85 



Type locality: Ace. no. 1236, 1200 yds. off Richardson Point, San 

 Miguel Island, on a sunken buoy in 45 fms, Dec. 1948, Earl Fox, 

 collector. 



Material examined: The type and one immature individual from 

 Sta. 1172-40. Cat. nos. 61.1-61.2. 



Distribution: The Channel Islands, 45-150 fms. 



Genus DENDROSMILIA Milne Edwards and Haime 



Dendrosmilia Milne Edwards and Haime (1848), Comptes Rendus 

 Acad. Sci. Paris, vol. 27, p. 468. 

 Genotype : Dendrosmilia duvaliana Milne Edwards and Haime. 



Dendrosmilia nomlandi Durham and Barnard, new species 



Plate 10, fig. 47 



Corallum colonial, subdendroid, consisting of 5 corallites; colony 

 formation appearing to be extratentacular ; corallites irregularly oval, 

 fossa deep ; septa mostly broken, thin, 40 in the largest calice, 33 in the 

 smaller well-preserved calice; septal interspaces varying from 1-2 times 

 the thickness of the primary septa; primary and secondary septa reaching 

 to columella, later cycles successively narrower; septa narrow above, all 

 apparently slightly and equally exsert; inner edges of septa smooth, 

 descending almost vertically to bottom of calice; septal faces with a 

 moderate number of tall, irregularly distributed granules ; exterior sur- 

 faces of colony covered with minute, evenly distributed granules ; costae 

 very faint when developed, equal, composed of lines of granules which 

 fade out towards the base of each corallite; columella small, fascicular, 

 composed of 2-3 highly twisted and contorted, elevated pieces. 



Remarks: The genotype of Dendrosmilia from the Eocene-OIigo- 

 cene of the Paris Basin and Astrangia boreas Nomland are the only other 

 species known of this genus except for Tha?nnocoenia oolitiea Tomes, 

 doubtfully referred to this genus by Vaughan and Wells (1943). The 

 extratentacular budding of the new species does not strictly alternate 

 in a regular manner as in the genotype. This species is differentiated 

 from D. duvaliana by the deeper calice and smaller columella and from 

 D. boreas by the smaller calice and more prominent fourth cycle septa. 



Dimensions of holotype: Height of colony 33 mm, calice of largest 

 corallite 5 by 9 mm in diameter, depth of fossa 4 mm. 



Holotype: AHF no. 15. 



Type locality: Sta. 1172-40, 5^ mi southeast of Santa Catalina 

 Island, 45-150 fms. 



Material examined: The holotype. 



