MUSEUM OF COMPARATIVE ZOOLOGY. 47' 



Discorhina sp. Cristellaria cultrata 



Truncatulina sp. Vertebralina striata 



Poli/trema rubra Articulina conico-articulata 



Carpenteria sp. Bulimina margiiiata 



Orbiculina adunca Nodosaria costalata 

 Orbitolites marginalis 



Residue, 12.94 per cent, light brown, consists of Minerah [3.00], m. di. 

 0.1 mm., quartz, liorubleude, magnetite, mica, olivine, and a few glassy frag- 

 ments. Siliceous organisms [3.00], Sponge spicules, Diatoms, and a few casts. 

 Fine washings [6.94], argillaceous matter, fine mineral particles, and fragments 

 of siliceous organisms. 



Station ll'i.—'W. of Navassa Bank, 19 Dec, 1S78. Depth, 1050 fathoms. 

 Surf. temp. 82°. Bot. temp. 39|°. A light brown Globigerina ooze, slightly 

 coherent, pulverulent, granular ; dries into lumps, wliich break easily between the 

 fingers. 



Carbonate of Calcium, 62.38 per cent, consists of Lamellibranch, Pteropod, and 

 Heteropod shells, coccoliths and rhabdoliths, and the following Foraminifera : — 



Globigerina bulloides P. menardii, vzx . fimbriata 



G. rubra P. micheliniana 



G. aquilateralis P. canariensis 



G. dubia Pullenia obliqniloculata 



G. hirsuta Biloculina depressa 



G. sacculifera B. sphara 



G. {prbulind) unitersa Cassidulina sp. 



Sphteroidina dehiscens Webbina clatala 



Candeina nitida Truncatulina lobatula 



Palcinulina menardii TJcigerina sp. 



P. menardii, var. tumida, 



Residue, 37.62 per cent, red, consists of Minerals [15.00], m. di. 0.07 mm., 

 (angular) felspars, quartz, hornblende, mica, magnetite, many glassy fragments. 

 Siliceous organisms [4.00], Sponge spicules, Badiolarians, and a few casts. Fine 

 tcashings [18. G2], argillaceous matter, fine mineral particles, and fragments of 

 siliceous orgranisms. 



'D" 



Station 117. — Lat. \T 47' 20" N. Long. 67° 3' 20" W. Off Porto Rico. 

 Depth, 874 fathoms. Surf. temp. 82|°. Bot. temp. 40°. A coral mud or Ptero- 

 pod ooze, slight coherent, granular. Also, a small quantity of larger material, 

 which appears to have been washed from the dredge, consisting of Gasteropod, 

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

 ments. Coral, Polyzoa, and Serpula tubes. 



Carbonate of Calcium, 70.6G per cent, consists of Pteropods, Hetcropods, frag- 



