76 RKCKNT MADKKPORARIA OK THE HAWAIIAN ISI.ANDS AND LAYSAN. 

 CARYOPHYLLIA HAWAIIENSIS, new species. 



I'latc V, lifis. 4, 4(1, 4/.. 



("oiallimi attiichod hy an oxpuiKlod Iwso, {.rradually iiicmising in diameter 

 toward the calico. C'alice l)r()adly elliptical. 



MEASrUKMKXTS. 



Specimen 



Greater diaiiu'tfr of calice 

 Lesser (liainctcr of caliiv . 



Height 



Number of jiali 



No. 1. 



mtii. 



a 



5 

 11.5 

 10 



No. 2. 



6 

 15 

 10 



No. 3. 



nun. 



9 



7. i 

 20 

 10 



mm . 



9 



8 



18 



11 



The wall externally is shiny and covered with numerous small grauulations. 

 Small individuals and the lower portion of large specimens are without costie, but 

 in older, adult, specimens, distinct t)ut not prominent costie correspond to the largest 

 septa; between the.se, smaller costie may be present. 



The septa in fully grown individuals appear to be divided into ten or eleven 

 systems of three cycles each. It is not possible to ditlerentiate the primar}' six 

 septa from the four or five large members of the second cycle. The ten or eleven 

 principal septa have very proiuinent upper margins, which may project 1.5 mm. above 

 the upper edge of the wall. The n)argiiisof the members of the last cycle are about 

 half as high as those of the principal septa; the next to the last cycle are not so 

 prominent as the last. The septal faces are delicately fluted, and inconspicuous granu- 

 lations are muiierous. 



I'ali ten or eleven in number, thin, delicate, erect, moderately wide, fluted, and 

 granulated; in a single crown before the penultimate cycle of septa. 



Columella rather small, composed of several curled ribbons. 



Calicular fossa only moderately deep. 



Localitk'x. — South coast of Molokai Island, Station 3838; depth, not precisely 

 given, 92-212 fathoms; bottom, flne gray brown sand; temperature of the bottom, 

 67= F. 



Northeast coast of Hawaii Island, Station 40<)1; depth, 21-83 fathoms; bottom 

 coral .sand, corallines, nodules, foraminifera; temperature at surface, 77° F., 1 

 specimen. 



Pailolo (;hannel, between iMaui and Molokai islands. Station 3885; depth, 136- 

 148 fathoms; bottom, .sand, pebbles; temperature, 61.8^ F. ; 1 specimen. 



6K'/;''c-'<-— Four .specimens, Cat. Nos. 20719, 20750, U.S.N. M. 



Remarks.— TXnt^ species is closely related to Alcock's Caryophyllia quadra- 

 geimria." The principal ditt'erence seems to be in the much more developed costas 

 of the latter species. It is not improbable that the species here described may later 

 be placed in the synonymy of C. (juadragenaria. 



"Deep Sea Corals, Siboga Expedition, p. 10, pi. i, figs. 4, 4a. 



