314 DK. G. .1. HINDE. 



7'ni lira fill ilia, Ciilraiiiui, Gi/ji.fiHii, Pnh/freinu, Ainphisicrjina, nnd Heferosfri/ina. Mi'. Chahmax has determined 

 eleven species. No remains of corals were noticed in this sample. 



(L. 7) [455]. 81i feet. The white, porons, rnbbly fragments of limestone consist of fIaliinwhi-]omtH, 

 foraminifera, and a few corals. HaUiiwihi is more ahnndant, prohalily it forms half the rock. It is here 

 hard and stony, and some of the joints are free The only corals noticed are fragments of Serialop&ni, 

 PociUopora, and Fmujia. The foraminifera belong to OrbitoUfes, Sat/fnina, Haddonia, Tcxtularia, Calcarina, 

 Xmmnina, Ainphiatec/ina and Hrfirosfec/ina ; only the last two are common. Echinid plates and spines, 

 Si'ipala, Tlimd'/a, lamelliljranehs and gastropods. 



(L. 16). 82 feet. Six small irregular lumps of grey and greenish hard limestone from No. 2 borediole. 

 They have been examined by ^Ir. H. M. Bkkxakd, who reports that four consist of Hcliopora nrntl/v. The 

 coral is extensively Ijored by I'lioim, the surface is pitted, and Spirorh/.t is attached to it. Another piece 

 is a fragment of Ci/phasfrca, and the remaining lump is mainly made up of alcyonarian spicules. 



(L. 8) [456]. 94| feet. Irregular fragments of hard, whitish, rubljly limestone, consisting largely of 

 corals, with a few foraminifera and a small amount of HnUiimhi. The corals belong to Hcliopora, 

 Seriatopiira, plentiful, I'oriUopora, common, Madicjiora and Pariti's. The delicate Ijranches of Seriuhpoia and 

 Mad i< para are, in some instances, partially decomposed, and will lireak up in the fingers, in some of the 

 other corals the minute structiu'e is retained. The more abundaiU foraminifera are : Poli/freina jilanuiii, 

 ^liiijdiisfci/iiia P'-ssiinii, and If<-fi'n><f')iiiiii drpirssn : the rai'er forms are: T'xf/iJnria ni>io.<a and ('aipciifi'ria 

 ii/ririilans. 



(L. 9) [457]. 103i feet. Fragments and powder of vvhitish, porous, lightly cemented limestone with small 

 cavities occupied by crystals of calcite. The rock is composed chiefly of corals and foraminifera. The corals 

 belong to rV'.'/w/c, another Astnean genus, Mmlnpora ruiiti'rta, and Asfraopoiv. Their walls are generally 

 preserved, but in some cases they have been dis.solved and only the casts in consolidated sediment 

 remain. Alcyonarian spicules. Foiaminifera numerous, they a|)paiently belong only to Amplii^li'iiiini aufl 

 Hefciusfcijitm. Only traces of Ilaliiiiida. 



(L. 15). 105 feet. Fragments of whitish, hard, j)orous limeslone, which Mr. H. M. Bernard has 

 examined. He recognises .specimens oi ■Scrinfopniii. referred pro\ isionally to N. parifira, BructGEMAN, 

 which now lives on the reef. The rock contains also Ptihiln-iKa plaiiiiin, Am/i/iisfi'f/iiiii and Haliiinda- 

 joints in good pre.servation. 



(L. 11. L. 12) [459, 460]. 100-^' feet. Fragments of Inuestone similar to the preceding, but very 

 lightly cementeil, so that the rock readily breaks up. The rock consists chieHy of corals and foraminifera. 

 The former include Lobo/dii/hnn, Scrialnpura. undeternn'ned .Vstra'an, Madrrjioiv and Monfipora, encrusted 

 by Poli/ireiita plannin. Foraminifera niuneroas, chiefl\' A nijihisfrc/iiia and Heterodeijinu. Echinid spines, 

 lamellibranchs and gastropods. Halinu'da, not uiiconnnon and in fair preservation, it is consolidated 

 with the other organisms. 



(L. 10) [458]. II 2i feet. "\Vhitish-grc3' 'ii'^^jly li'"estone, composed mainly of corals and foraminifera. 

 The coral fragments belong to Si'riafojiora (rare), .Ifadrrpora, Gonio/ioni and Monlipuiv. their structure is 

 usually preserved, and the interstices are eithei' empty or infilled with crystalline material or consolidated 

 sediment. Foraminifera numerous, the .same forms as in the sam^jle above. Haliiii/'da not unconmion. 



(L. 1^3) [461, 462]. 116-144 feet. Sample of fragments of limestone, composed chiefly of corals and 

 foraminifera, like the preceding. The sample has been sulmiitted to Mr. BERNARD, who reports that it 

 contains "fragments of Madirjioru and a single fragment which may he either Madrcpora or Monlipora. 

 The greater nimiber of fragments are not coral or only coral dvLris mixed with other organisms." 



A microscopic section of some of the rock fragments shows that the minute structure of the corals is 

 preserved and their interstices are either empty or infilled with fine consolidated sediment containing 

 numerous stellate spicides of LpptoAininn. The i)rinci2)al foraminifera are Pohjlreina, .linphiA/'ijinu 

 and HderonkgiiM. In a microscopic section the following additional genera were determined by 

 Mr. Chapman : — MiUolina, Glohii/erina, JJisrodnna, J'lanorhnlina, <'alruiiiia and Gijpdnu vnJtartnx. Echinid 

 spines, SerpuJa, Spiivrhis and lamellibranchs. Huliiitedu-]omts, branching and encrusting Lithoihainniun, 

 with the structure well preserved. 



