138 A. E. Verrill — Bermudian and West Indian Reef Corals. 



spinulose. The septo-costa? are very thin and high, separated by 

 spaces 4 to times as wide, with few angular teeth. 



In sections (fig. -2c), the exotheca is abundant, coarsely cellular ; 

 the dissepiments are convex and numerous. Singapore (?); Mus. 

 Yale Univ.; Field Columb. Museum. 



Echinopora elegans Ver., sp. nov. 



Plate XXIX. Figube 3. 



The coral forms broad, thin, contorted, foliaceous fronds, some- 

 times 20 inches (500 mm ) broad and 10 inches high, while the average 

 thickness of the folia? may be 3 to 4 mm , becoming very thin and 

 translucent toward the margins, but yet compact and strong. Under 

 side has rather loosely scattered small calicles in some parts, but 

 toward the margins they are absent and the surface is evenly and 

 closely covered with very small, nearly equal costse, roughened with 

 minute granules. 



The upper side is roughly echinulate, and bears larger and more 

 prominent calicles, which are rather crowded in some parts, but 

 irregularly arranged, and becoming more scattered toward the mar- 

 gins, where the intervals are often equal to three or four times their 

 diameter. 



The larger corallites are verruciform, 3 to 4 mm in diameter, with 

 very roughly echinulate septa and costse. 



The septa, in the larger calicles, form three very unequal cycles. 

 The six primaries are much exsert, a little thickened, hispid laterally, 

 and with the edges finely lacerately toothed. Usually they consist 

 of two or three deeply divided lobes, the outer one standing on the 

 outer thecal margin ; the next, just within the calicle, is a little 

 wider ; the third, usually smaller, may represent the paliform lobe or 

 tooth. Those of the second cycle are smaller and thinner, but lobed 

 in the same way. Those of the third cycle are very small ami 

 narrow, or often rudimentary. 



The septo-costa? are numerous, even, and rather close, represented, 

 in general, by rows of small, upright, echinulate or lacerate spinules 

 of about equal size ; toward the margins the costulre become more 

 elevated, with the edge echino-lacerate. 



The columella is usually well developed, finely trabecular or spongy. 



Samoa (coll. Ward); Mus. Yale University and Field Columbian 

 Museum. No. 6180. 



