MUSEUM OF COMPARATIVE ZOOLOGY. 



59 



Long. 830 49' w. Depth, 392 fathoms. Surf. 



A grayish green coral tnud, pulverulent and 



Station 27. — Lat. 24° 30' N. 

 temp. 73°. Bot. temp. 44|°. 

 granular. 



Carbonate of Calcium, 82.06 per cent, consists of otoliths of fish, Gasteropod, 

 Lamellibranch, Ostracode, Pteropod, and Heteropod shells, Echinoderm frag- 

 ments, coccoliths and rhabdoliths, and Foraminifera as follows : — 



Glohigerina rubra 

 G. dubia 

 G. conglobata 

 G. bulloides 



G. {Orbulind) universa 

 PuUenia obliquiloculata 

 Pulvinulina menardii 

 P. micheliniana 

 Sphceroidina bulloides 

 Miliolina venusta 

 M. seminulum 

 Cassidulina crassa 

 BoHvina dilatata 



Textularia sp. 

 Bulimina aculeata 

 Nodosaria hispida 

 TJvigerina usperula 

 Cristellaria variabilis 

 Discorbina obtusa 

 D. allomorphinoides 

 Truncatulina lobatula 

 T. ungeriana 

 T. rosea 



Rotalia soldanii 

 Polystomella crispa 

 P. striatopunctata 

 Nonionina ■umbilicafula. 



Bigenerina sp. 



All the Foraminifera in this deposit appear very small (dwarfed). 



Residue, 17. 9i per cent, dark green, consists of Minerals [5.00], m. di. 0.1 mm., 

 quartz, felspars, hornblende, magnetite, plagioclase, mica, many glassy fragments. 

 Siliceous organisms [10 00], Sponge spicules, Radiolarians, Diatoms, and a few 

 casts of Foraminifera. Fine washings [2.94], argillaceous and green flocculent 

 matter, fine mineral particles, and fragments of siliceous organisms. 



Station 33. —Lat. 24° 1' N. Long. 88° 58' W. Depth 1,568 fathoms. Surf, 

 temp. 72^°. Bot. temp. 40|°. A light brown Glohigerina ooze, with a rosy 

 tinge, dark brown when wet, coherent, pulverulent, granular. 



Carbonate of Calcium, 72.21 per cent, consists of otoliths of fish, Pteropod 

 and Ostracode shells, Echinoderm fragments, coccoliths and rhabdoliths, and the 

 following Foraminifera : — 



