iri4 RECKNT MADREPORARIA OF THE HAWAIIAN ISLANDS AND LAY9AN. 



Localities. — 



South coast of Molokai Island, Station 8847; depth, 23-24 fathoms; bottom, 

 sand, stones; 3 spetumens and 10 fragments. 



Auau ClianncI, between IVhuii and Lanai ishmds, Station 3872; deptli, 32-43 

 fatiioms; yellow sand, pel)bles, coral; temperature, 74.()-'; 1 specimen, 2 fragments. 



Cotype.s.—Tyio specimens, from Station 3847. Cat. No. 20811, U.S.N.M. 



Reiiuirl-x. — The specimen from Station ."5872 has the lower lip to the caliees almost 

 or actually obsolete, the tips of the l)ranches are clavate, and the caliees are conspic- 

 uous. The larger type specimen has the lower lip to the caliees rather constantly 

 present, the tips of the branches may be flattened, but they still taper to the summit, 

 and the caliees are inconspicuous. The smaller of the type specimens coml)ines in 

 one specimen the diflercnces above noted; on one side there is no lower lip to the 

 caliees, on the other it is present, the conspicuousness of the caliees is correlative 

 with the absence of the lip; while the ends of the branches are intermediate in 

 character. 



4. MONTIPORA BERNARDI, new species. 



Plat.- LX, lif;s. W. 4. 



Corallum ramose: bi-aiiches thick in comparixm witli 21. tifnuicauJis. main stem, 

 leavingoutof account the papilla', subcircular or elliptical in cross-section, sometimes 

 compressed at the tips; diameter diminishing but little with increasing height. 

 Specimen No. 1 is bifurcated; angle between the l)ranches very acute; length, H3 mm.; 

 greater diameter of stem at lower end, 8 mm.; lesser, 6 mm. Specimen No. 2 is 

 ))i furcated near the upper end, and there are several irregular branches below; 

 length. 7(') nun.; greater diameter of stem at lower end, 8 nmi. ; lesser, 6.5 mm. 

 Specimen illustrated on Plate LX, figure 3, is 153 mm. long. Near the tips the 

 branches taper gradually. The}' may be round or flattened. The terminal surface 

 is obtusely rounded. The flattened ends are dividing, bifurcating or trifurcating to 

 form new Itranches. 



Caliees rather small, 0.5 to 0.75 nun. in diameter, 1.5 to 3 mm. apart, usually con- 

 spicuous. There are, as a rule, six more prominent septa; of these a directive pair 

 more developed. Quite often two secondaries, one each side of the lower directive, 

 nearly ecjual the primaries in size. The length of these larger septa is about one- 

 third the diameter of the caliees. The second cycle is complete; sometimes excepting 

 tlu! two al)ove mentioned, they are small, even rudimentary. The smaller septa are 

 composed of vertical series of horizontal spines; the larger often are dentate lamella;. 

 On the lower sides of many caliees are prominent papillie, usually broadly elliptical 

 in cross-section, projecting outward at right angles from the surface or somewhat 

 inclined toward the tips of the branches; summits rounded. The greater diameter at 

 the base varies from 1.5 to 2.5 ram.; the lesser diameter from 1.5 to 2 mm.; height 

 from 1.5 to 2.5 nun. There are no papilhe below some caliees; below others there 

 are only low swellings of the surface. The minute characters of the surface are the 

 same as in M. tenuicaulin. 



Locality.— South coast of Molakai Island, Station 3847; depth, 23-24 fathoms; 

 bottom, sand, stones; 2 })ranches, probably broken from the same specimen; 3 other 

 specimens and several fragments. 



