BULLETIN 59, UNITED STATES NATIONAL MUSEUM. 



149 



Upper margins only slightly cxsert, thui^e of the tirst mid seeond C3cles and most of 

 the third equal in prominence, those of the other cycles less prominent; edges entire 

 or delicately crenulated. Faces with minute undulations, some elongated sharp- 

 edged granulations along their courses. Inner margins tall ])erpendi(uiai'ly to the 

 bottom of a deep, well-like calicular fossa. 



Coluiuella. poor!}' developed, small spongy, standing up in tlie bottom of the 

 fossa, and free from the edges of the septa. 



Locality. — Northeast coast of Hawaii, Station 4059; depth, l'JO-ti!tl fathoms; 

 bottom, rocky; temperature, 44° F. ; several specimens, 4 rather large coralla, 2 of 

 them dead. Young indviduals frequently attach themselves to dead specimens, or to 

 the lower portions of living ones. There are more than a dozen of these j'oiuig. 



Cotypes.—T\\\->?i^ specimens. Cat. No. 20823, U.S.N.M. 



Remarhn. — This coral may be ov\y a variation of Bahinophyllia cornu Mosele3^, 

 but B. cornu has a better developed columella. One of the specimens of B. hawaii- 

 eiisis has practically no columella, that structure being represented by a single weak 

 septal trabecula. The columella is very poorly developed or almost absent in the 

 others. Moseley describes B. cornu as being more compressed than this Hawaiian 

 species. 



BALANOPHYLLIA DESMOPHYLLIOIDES, new species. 

 Plate XLV, %§. 1, \a. 



Corallum tiabellate, attached by a' rather large base. Transverse outline of 

 calice elliptical or may be somewhat constricted in the plane of the shorter diameter. 



Above the base is a stout stalk, almost circular in cross section; above the stalk 

 the corallum becomes compressed. In specimen No. 1, the diameter of the stalk is 

 ().5 mm.; in specimen No. 2. greater diameter, 4.5 mm.; lesser, 4 mm. 



Wall naked or with .some epetheca on the basal portion. Costre corresponding 

 to all septa, low, .subeciiial or equal, occasional alteration in size, continuous to the 

 base; denselj- graiiulateil. a I'ow of principal granulations along the sunuuit, some 

 smaller granulations. Their edges present a crenatc or roundedly dentate appearance; 

 Transverse profile rounded. Intercostal furrows narrow, with numerous perforations. 



Septii in specimen No. 1, five complete cycles and a few members of the sixth. 

 The usual balanopliyllioid grouping. The septa of the last cycle fuse in front of 

 those of the penultimate cj'cle very near the upper margin of the calice; in the 

 sy.stems at the ends of the calice, prolongations from the groups of higher cycles fu.se 

 in front of the third cycle near the level of the upper surface of the columella. 



