60 



BULLETIN OF THE 



Residue, 27.79 per cent, reddisU brown, consists of Minerals [6.00], m. di. 

 0.15 mm., quartz, hornblende, magnetite, felspar, glassy fragments. Siliceous 

 organisms [10.00], Sponge spicules, Radiolarians, Diat-oms. Fine washings 

 [11.79], argillaceous and flocculent matter, fine mineral particles, and fragments 

 of siliceous organisms. 



Station 41. — Lat. 23° 42' N. Long. 83* 13' W. Depth, 860 fathoms. Surf, 

 temp. 73°. Bot. temp. 39^*'. A white chalky Pteropod ooze, granular ; with 

 several hard chalky concretions, which are perforated by worms, and in parts 

 showing deposits of manganese. 



Carbonate of Calcium, 83.67 per cent, consists of otoliths of fish, Pteropod and 

 Heteropod shells, coccoliths, rhabdoliths, and Foraminifera as follows : — 



Glohigerina rubra 

 G. inflata 

 G. sacrulifera 

 G. conglobata 

 G. dubia 



G. bulloides, var. triloba 

 G. {Orbulina) universa 

 Spharoidina dehiscens 

 Candeina nitida 

 FulvinuliAa menardii 

 p. menardii var. tuniida 

 P. menardii ^vc . fimhriata 



1 



Pelagic 

 species. 



Biloculina depressa 

 Miliolina seminulum 

 M. circularis 

 Planispirina celata 

 Rhabdammina discreta 

 Hyperamina ramosa 

 Bulimina marginata 

 JJtigerina oculata 

 Spheeroidina bulloides 

 Truncatulina rosea 

 T. lobatula 

 Pulcinulina pauperata 



Bottom- 

 living 

 species. 



P. micheliniana 



Residue, 16.33 per cent, light brown, consists of Minerals [4.00], m. di. 0.08 

 mm., quartz, magnetite, felspar, hornblende, and a few glassy fragments. Sili- 

 ceous organisms'\j[ .QQi\ many Radiolarians, Sponge spicules, and Diatoms. Fine 

 icashings [5.33], light brown flocculent and argillaceous matter, with fine min- 

 eral particles and fragments of «''iceous organisms. 



Station ^%. — l.2.t. 28° 47' 30" N. Long. 88° 41' 30" W. Depth, 533 

 fathoms. Surf. temp. 66°. Bot. temp. 4U°. Mud (river), of a light brown 

 color, dark with a greenish tinge when wet, showing Gasteropod shells imbed- 

 ded, very coherent, clayey streak, dries into very hard lumps. 



Carbonate of Calcium, 6.43 per cent, consists of a few Gasteropod shells, cocco- 

 liths, and the following Foraminifera : — 



Pullenia obliquiloculata 



Globigerina inflata 



G. conglobata 



G. bulloides 



G. dubia 



G. rubra 



Q. {Orbulina) universa, fragments. 



Pulvinulina menardii 

 P. menardii, var. tumida 

 P. micheliniana 

 Miliolina seminulum 

 Bulimina marginata 



