NO. 1 DURHAM, BARNARD: EASTERN PACIFIC STONY CORALS 71 



Astrangia (Astrangia) haimei Verrill 



Plate 6, fig. 30 



Astrangia haimei Verrill (1866), Proc. Boston See. Nat. Hist., vol. 

 10, p. 330; (1870), Trans. Conn. Acad. Arts Sci., vol. 1, pp. 

 526-527, pi. 9, figs. 6, 6a. 



Verrill's 1870 description is as follows: 



"Coralla encrusting, consisting of prominent cylindrical or turbinate 

 corallites, sometimes rising more than half an inch above the surface of 

 the basal expansion, which connects them together, and becoming slight- 

 ly turbinate and divergent when highest. 



"The corallites are distant from each other from .04 to .25 of an 

 inch. The basal mural expansion is very thin, compact, and slightly 

 granulated, having a smooth appearance, and usually without apparent 

 striations. Septa from thirty to forty-eight, very narrow and thin, with 

 the inner edges nearly perpendicular, forming a deep cup, narrow at the 

 bottom ; they are all, except those of the last cycle, which are more nar- 

 row, of nearly the same width, giving an even appearance to the cavity 

 of the cup; they project slightly above the wall, about .01 of an inch, in 

 the form of narrow points, alternately larger and smaller; the inner 

 edges are thin, evenly and sharply dentate, the sides strongly granulated, 

 but not crowded together, the spaces between them being equal to their 

 thickness, or even wider. The columella is small, consisting of numerous 

 even papillae, graduating into the teeth at the base of the septa. Walls 

 thin, granulated exteriorly, with low, even costae on the upper part, 

 which mostly disappear toward the base. 



"Diameter of cups .10 to .18 of an inch; depth .06 to .10; height 

 of corallites usually about .10 to .25, sometimes .40 to .55 of an inch. 



"Panama and the Pearl Islands on the reefs, at low-water in pools; 

 Zorritos, Peru; Acajutla; Realejo; La Union, San Salvador, common, 

 — F. H. Bradley." 



Remarks: The fourth cycle septa are less exsert than the other 

 cycles but the difference in width between the first 3 cycles and the 

 fourth is very slight, so that the interior of the cup presents a very even 

 appearance. The fourth cycle septa of A. {Astrangia) sanfelipensis, new 

 species are much narrower than the first cycle and this character separ- 

 ates that species from A. {Astrangia) haimei. 



The paliform teeth of A. {Astrangia) haimei number 5-7. The 

 columella consists of 10-12 small, even papillae, and the septal faces 

 possess scattered, small, blunt granules. 



Lectotype: (here designated). Peabody Museum of Natural His- 

 tory Type no. 598, a cluster of corallites. 



