MUSEUM OF COMPARATIVE ZOOLOGY. 



57 



Specimen 40, Line F . — Lat. 25° 31' 45" N. Long. 90° 28' W. 13 May, 

 1875. Depth, 1,922 fathoms. A dark brown Globigerina ooze, coherent, plastic. 



Carbonate of Calcium, 36.54 per cent, consists of Echini spines, Ostracode 

 valves, coccoliths, and the following Foramiuifera : — 



Biloculina depressa 



Miliolina sp. 



Truncatulina lobatula 



Nonionina pompilioides 



Globigerina rubra 



G. dubia 



G. conglobata 



G. sacculifera 



G. bulloides, var. triloba 



Pullenia obliquiloeulata 

 Bottom-living Sphcproidina dehiscem 

 species. Candeina nitida 



Pulvinulina menardii 

 P. menardii, var. tumida 

 P. menardii, \d.r . Jimbriata 

 P. micheliniana 

 P. canariensis 



Residue, 63.46 per cent, reddish, consists of Minerals [30.00], m. di. 0.07 mm., 

 quartz, mica, felspar, augite, plagioclase, glauconite, and red palagonite-like par- 

 ticles. Siliceous organisms [5.00], Radiolarians, Sponge spicules, and brown 

 flexible casts of Foramiuifera. Fine washings [28.46], amorphous clayey matter, 

 with fiue minerals and fragments of siliceous spicules. 



Specimen 30, Line G C. — Lat. 23° 23' N. Long. 94° 39' W. May 17, 1877. 

 Depth, 2,057 fathoms. A reddish Globigerina ooze, coherent, clayey, with lus- 

 trous streak. 



Carbonate of Calcium, 32.12 per cent, consists of a very few coccoliths and 

 rliabdoliths, and the following Foramiuifera : — 



Globigerina dubia 



G. rubra 



G. sacculifera 



G. conglobata 



G. helicina 



G. bulloides, var. triloba 



G. several irregularly growing forms. 



G. iOrbulinci) unicersa 



Pullenia obliquiloeulata 



Sphceroidina dehiscens 



Pulvinulina menardii 

 P. menardii, var. tumida 

 P. micheliniana 

 P. canariensis 

 Truncatulina lobatula 

 Nonionina umbilicalula 

 N. pompilioides 

 Pulcinulina elegans 

 Bolivina textilarioides 

 Miliolina cultrata 



Bottom- 

 living 

 species. 



Residue, 67.88 per cent, red, consists of Minerals [15.00], m. di. 0.05 ram., 

 quartz, felspars, magnetite, augite, hornblende, a few red particles, glassy frag- 

 ments, and fragments of scoriiE. Siliceous organisms [3.00], Sponge spicules, 

 and fragments of Radiolarians. Fine washings [49.88], argillaceous matter, fine 

 mineral particles, and a few fragments of siliceous spicules. 



Specimen 21, Line C C. —Lat. 23° 18' iM Long. 92° 03' W. Depth 2,080 

 fathoms. A light brown Globigerina ooze, reddish when wet, coherent, clayey. 

 Carbonate of Calcium, 35.52 per cent, chiefly made up of pelagic Foramiuifera, 



