REPORT ON MATERTAT;S FROM THE BORINGS AT FUNAFUTI ATOLL. 275 



(425a) [790]. Length 33.3 millims., width of cylinder 58 millims. Whitish-grey, h.-ird, compact 

 to porous, with occasional small hollows. The upper half of the core mainly of corals, the lower of 

 foraminifera and detrital materials. Gala.Kea{1), Poiitvs urenosa, Astrdiopora ; also Millcpora. The 

 foraminifera belong to Orbiiolites {very common), Gbbir/mna hulloides, Carfcnferia, Pohjlmna planum, 

 AmpJmfegina, and Heterodegina. Serpula-tnhes. Cast of turretted gastropod. Branching Lithothamnion. 



(426a). Length 234 millims. "\Yhitish-grey, hard, porous, except -^here corals have been infilled mth 

 crystalline dolomite. Mainly of coral casts, Galaxen Ellisi (?), Pontes nrenosa, Montipora, and Madrepora (?), 

 LohophjtuiH growing on Porife.-^, and detached spicules of alcyonaria. Corals in position of growth ; 

 encrusted \vith Poli/lrema planum and Lithothamnion. OrbitoJites and AmphistegiMi. 



(427a) [791]. Length 331 millims. Whitish-grey, hard, porous to compact. Core mainly of corals. 

 Galaxea Ellisi {f) growing in large masses, apparently in position of growth, also Astnea (1). Alcyonarian 

 spicules very numerous. Corals overgrown with Pohjtrema and Lithothamnion. Detrital materials with 

 Orbitolifes, Globigerina hulloides, Carpenteria, Calmrina, Gypsina, and Amphistegina. 



(428a, 429a). Total length 182 millims. Whitish-grey, hard, with some hollows. Largely of corals. 

 Astroia lohata, Co.'loria, Pontes arenosa. Alcyonarian spicules, echinid spines. Foraminifera as in 

 preceding. 



(430a). Length 160 millims. AVhitish-grey, hard, porous. Almost wholly of corals apparently in 

 position of gro^vth. Ccelona, Astnea lobata, Piionastrcea magnifica, and Madrepora. Alcyonarian spicules. 

 Orbitolites, Pol i/tremu planum, Amphistegina. Lithothamnion. 



(431a-433a). Total length 334 millims. Greyish-white, hard, porous, with occasional cavities. Largely 

 of casts of corals. Pocillopora, Astram lohata, Prionastrcea riuignifica {%), Mcdrepora and Poiites. Millepora, 

 Lohophjtum, alcyonarian spicules. Foraminifera as in preceding. Casts of gastropods. Echinid spines. 

 Lithothamnion. 



(434a, 435a). Total length 211 millims. Whitish-grey, hard, porous, with some compact areas. Mainly 

 of corals. Pocillopora, Co'loria, Madrepora, and Porifes arenosa. Amphistegina,, LithotJmmnion. 



(436a). Length 121 millims. Whitish-grey, hard, mostly compact. Prionastrcea magnifica and branching 

 Madrepora. Alcyonarian spicules. Core largely of detrital materials with Orbitolites, Carp>enteria, 

 Amphistegina, echinid spines. Casts of gastropods. Branching Lithotlutmnion numerous. Casts of unusually 

 large Cliona borings. 



(437a). Length 198 millims. Greyish-white, hard, porous, with hollows where corals have been 

 removed. Somewhat more than half the core of corals. Pocillopora, Creloria, Mad/repora, cast of large 

 Porites solidly infilled with crystalline dolomite. In detrital portion of core the same kinds of organisms 

 as in the core above. Casts of lamellibranchs. 



(438a). Length 218 millims. "\^Tiitish-grey, hard, porous, dolomite, with occasional hollows. Numerous 

 small casts of corals. Pocillojyorq, Astrsean, Madrepora and Poiites. Nodular lumps of Millepwa, Corals 

 in position of growth. Orbitolites, Carpenteria, Amphistegina, Heterostegina. Echinid spines. Branching 

 Lithothamnion abundant. 



(439a-441a). Total length 267 millims. Rock similar to preceding. Numerous casts of small corals, 

 intermediate areas of finely detrital fragments with foraminifera. Pocillopora abundant, Cceloria, 

 Astrsean, Madrepmxi, and Porites. Alcyonarian spicules. Orbitolites, Carpenteria. Casts of gastropods. 

 Branching Lithothamnion. 



(442a). Length 102 millims. Greyish-white, hard, porous, with some hollow spaces. Casts 

 of corals and detrital materials. Pocillopora, Goniastrcea solida,* BL, small Fungid and Madcepora. 

 Orbitolites, Amphistegina, numerous. Lithothamnion. 



* i 



Diet. Sci. Nat.,' vol. 60, p. 338, 1830. 

 2x2 



