o 



56 RECENT MADKKI'OKARIA OF THE HAWAHAN ISLANDS AND LAYSAN. 



This spc'ciinon iippcars to 1h> (lirtV.v.iI Iron, tlios.. i.i Tal.le I in three particulars: 

 (1) The basal anj^le is less; {■>) there is .... hasal keel; (H) the septa and the nisule of 

 the wall are purplish red. On .•loser stu.ly all of these differences vanish 1 he 

 basal an<rle is not 10 less than that in the specimens witii the smallest angle in Table 

 I, and is%vell within the limits of the variation of th.. species, as the next three tables 

 will show. The lateral edges b.Tonie more (•omi)ivss<'d toward the pedicel, the dif- 

 ference from the bases of spe.'imens Nos. 11, 10. and 11 being only slight. The inside 

 of the wall and the peripheral jx.rtions of the septa in specimens Nos. 6 and 9 are 

 similarly colored, but not so dark as in the spc.-imen hciv considered. The outside 

 of this specimen is corroded, and that may have made the lower edges more obtuse 

 than thev originally wer(>. 



Localities.— ■ii'' l()..s' S., 172 .50.6' E.. -15 fathoms (Studer's type); 6- 8' N., 121 

 19' E., 275 meters (Alcockl. 



Albatross, 1902, Tailolo ('luinncl. between Molnkai and Maui islands. Station 

 3865: depth, 256-283 fathoms: bottom, line volcanic sand, rock; temperature, 45^ F. ; 

 1 specimen. 



FLABELLUM PAVONINUM var. DISTINCTUM Milne Edwards and Haime. 



Plate II, fit;. 5, r^n. 



1848. Fliihrllnm tlMnrlum Mn.NE Ei>w.\Rris ami Haime, Ann. Sci. Nat., 3ieme si^r., Zool., IX, 



p. 2()2. 

 1857. FUihelhim (I'lxliiirtiiiii .Mn.NE Envv.'inDS ami Haime, Mist. Nat. ( 'orall, II, p. 80. 

 187:i. Flabdlnm dhinuinia Duncan, Trans. Zool. Soc. London. VIII, p. 32:i, pi. x.vxi.x, figs. 1-13. 

 1881. Plahelhtm palem Moseley, Deep Sea Corals, Challenger Repts., p. 172, pi. vi, figs. 4, 4a, 



.5, .5(7. 

 1881. Fhitielhun andrtile Moseley, Deep Sea Corals, Challenger Repts., p. 173, pi. vii, figs. 4, 4a, 



5, .5o, ab. 

 ISIOL'. Fluhellum distinrtnin .\uock, Deep Sea Mailrepor., Siboga E.xped.. p. 30. 

 1902. Flabellam nmtrale Alcock, Deep Sea Madrei)or., Silioga Exped., p. 30. 

 1904. Flabdlwm cimnii von Mare.vzellek, Steinkorallen, Valdivia Exped., p. 274, pi. xviii, figs. 



14, 14a, Ub. 



FlahelluiH (lixftiK-tiiiii 'SVihw Edwards and Haime, 18-tS: 



This coral has been confused with 1<\ pacoiiiiiniii; but its lateral cost<'e, instead of being almost 

 horizontal, are a.scending, ami their angle is not much larger than a right angle. The calice is more 

 compressed, and it,- niai^in forms an an^ less than a semicircle. <-)nly the first three cycles of septa 

 are equal, and the ai)pearance is of 24 systems, with 7 sejita ea<-h. — Milne- Edwards and Haime, 1857. 



Flahellum j)ateni< Moseley, 1881: 



The adult coralluni is wedge-shaped with smooth sides. The form varies very much, the lat- 

 eral costa', which ar<' sharp and more or less indented, varying in the angle which they make with 

 one another between 100° and 1(50°. The inclinations of the lateral faces to one another vary from 30° 

 to 50°. The surface of the <-orallum is smooth, polished, and (if a red-brown color. The principal 

 cost<'e are only just visible. There is a distinct short pedicle. The summits of the .short axis of the 

 calide are much higher than tho.se of thc^ long axis, and the lateral margins of the calide describe 

 even curves of nearly half a circle. In one perfect specimen there are 192 septa of three sizes, 24 

 being complete and in appearance e<iual and primary. In another more adult specimen there are 268 

 septa of four dimension'^, but the septa are a little irregidar, and atone end the coralluni has evidently 

 had a considerable piece broken away, and this has been restored with a remarkable maintenance of 



