72 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 16 



Type locality: Bay of Panama, F. H. Bradley, collector. 



Material examined: Peabody Museum of Natural History Types 

 nos. 593 and 598, Bay of Panama; Sta. 1044-40 (2). Cat. no. 31.1. 



Distribution: Sta. 1044-40 is south of Tiburon Island, Gulf of 

 California, 2-3 fms. 



Astrangia (Astrangia) hancocki Durham and Barnard, 



new species 

 Plate 6, fig. 31 



Corallites short, cylindrical, closely aggregated, connected by a 

 basal coenenchyma ; septa 24-40, interspaces about as wide as thickness 

 of larger septa ; septa slightly exsert, every alternate septum more exsert 

 than remainder; alternate large septa extend to columella, the remainder 

 extending one-third to one-half the distance to the columella; septa nar- 

 row at top, inner edges descending steeply to columella; larger septa 

 with 6-7 fairly short paliform lobes, even in size, but slightly longer 

 toward the columella, smaller septa with 3-5 paliform teeth ; septal 

 faces with irregularly distributed blunt granules ; costae extremely faint, 

 exterior of corallites nearly smooth ; columella moderately large, con- 

 sisting of anastomosing paliform lobes. 



Remarks: This species closely resembles A. (Astrangia) lajolla- 

 ensis Durham but has fewer paliform lobes and lacks costae. It differs 

 from A. (Astrangia) sanfelipensis new species, by the alternation of the 

 septa and the presence of more paliform lobes on the earlier cycles of 

 septa as well as the lack of costae. 



Dimensions of corallite: Height 3 mm, diameter 3 mm, depth of 

 calice 1.8 mm. 



Holotype: AHF no. 8. 



Type locality: Sta. 763-38, off Black Rock, Cape Corrientes, Mex- 

 ico, 5-10 fms. 



Material examined: Sta. 763-38 (7). 



Astrangia (Astrangia) hondaensis Durham and Barnard, 



new species 

 Plate 6, figs. 32a, b, c 



Corallites small, cylindrical to ceratoid, connected by a common 

 basal coenenchyma, individual corallites varying from 3-9 mm in height 

 and 1.5-3.0 mm in diameter; corallites with embedded worm tubes grow- 

 ing vertically next to thecal wall ; calices rather shallow, usually about 

 1 mm deep; septa 20-24 in number, interspaces 1.5-2.0 times the thick- 

 ness of the primary septa; first and second cycle septa reaching columella, 



