74 RECKNT MAnUEPOKARIA OK THK HAWAIIAN ISLANDS AND LAYSAN. 



These mcasuivineiits are not inude to t\w outer and tlie upper cd{,^es of the septa, 



hut on the wall. 



Wall polished, irlisteninjr. C'osta^ .listinct. hut not very prominent, those 

 correspond! 11 j,r to the tirst and second cycles of septa more pronounced than the 

 others and inay he suhacute: those correspondinyr to the third cycle often larger 

 than ttiosc corrcspoiidiiiL;' to the fourth. 



Septa in four coiuph'te cycles. The margins of the tirst and second cycles very 

 cx.sert. e(iual in prominence: the (|uateriiaries fused in the thecal ring- to the sides of 

 the included memher of the lirst or second cycle, the wall between them being con- 

 tinued upward considerably lieyond its upper edge on each .side of the members of 

 the third. The margins of the septa of the fourth cycle therefore stand much higher 

 than tho.se of the third cycle. Between the <iuaternaries are inci.sions in the upper 

 edge of the wall, and in these the tertiaries occur. The primaries and secondaries 

 are eipial in size, longer, wider, and thicker in the thecal ring, than the others; 

 th(> fourth cycle is wider tiian the third. Imt these two cycles are of about equal 

 length. The inner portion of all the septa and the upper portion of all except the 

 third cycle are very thin and fragile. 



Tali in a single crown, before the third cycle. They are tall, wide, very thin 

 and fragile, and are undulated. 



Columella well (h'velo[)ed. prominent, consisting of four ov more curled ribl)on.s. 



Calice shallow. 



Localt'ti/.—\u'm\ty of Modu Manu. Station 3!t77; depth 876 fathoms: bottom, 

 fine coral sand, foraminaf(>i'a, rock: temperature of liottom, 3s F. 



7}//;^'.— Cat. No. i'o744, L'.S.N.M. 



I have named tli»is very handsome species for Dr. A. Aicock, Superintendent of the 

 Indian .Museum and I'rofessor of Zoology and Con)parative Anatomy in the Medical 

 College of Calcutta. Dr. Alcock's reports on the lirwatiyafor and Sihoga deep .sea 

 corals are among the most valuable contributions that have been made to the sub- 

 ject. The present species liears a general, though apparently not close, resemblance 

 to Cainjophyllia cultrif/ni Aicock." 



CARYOPHYLLIA OCTOPALI, new species. 

 IMatr V, ii<is. 2, L't. ih. 



Corallum cornute. attached liy a wide liasal expansion. The specimen especially 

 selected for the type is so crooked that a longitudinal measurement posses.ses no 

 value. The calice is almost circular; greater diameter, 7 mm., lesser, 6.5 mm. 

 Externally there are usually very low, broad, tiattish, equal, granulated costw. 

 corresponding to all septa. Encircling wrinkles sometimes present, and occasionally 

 there seems to be .some? epitheca. WaW stout. 



The septa appear to be in eight systems of three cycles each.* Upper margins 

 not exsert, those of the primaries slightly more prominent than those of the two 



"Siboga Deep Sea ('or., p. 7, pi. i, figs. 1, In. 



6 In the description eight, for convenience, is considered tlie number of septa in the tirst cycle. 



