278 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 75. 
•Station 76. 
ftifzfichia marina, Grunow. 
„ jxxnd uri founts, Gregory. 
Snrirella fastuosa, Ehrenberg. 
„ maeraeaita, Greviile. 
,, patens, A. Schmidt. 
„ lata, W. Smith. 
,, Lisa, Janiscb. 
Camjiylodiscua thuretii, Brebisson. 
„ ralfsii, W. Smith. 
Synedra gaillionii, Ehrenberg. 
„ superba, Kutzing. 
(tram matophora undulata, Ehrenberg. 
„ marina, Kutzing, var. subunduluta, 
Grunow. 
„ serpentina, Ehrenberg. 
JViabdotiema udriaticum, , Kutzing. 
Ci-ratauliu turgidus, Ehreuberg. 
Biddulphia pulchdla, Gray. 
Triceratium atlanticum , Castracane. 
„ autidiluvianum , Van Heurck. 
,, arcticurn, Bright well, and var. 
,, serratum, Wallich, forma tetragona. 
,, furmosum , BrightwelL 
Triceratium pentucrinus, Wallich. 
Hemidiscus cunei/ormis, Wallich. 
Slictodiscus parailelus ( = Triceratium, Greviile), 
forma hexagona. 
Coscinodiscus lineatus , Ehrenberg. 
„ leptopus, Grunow. 
„ anguste-Uneatu8 , A. Schmidt. 
,, nitulws, Gregory. 
,, 8ubtilis, Ehrenberg. 
,, atlanticus, Castracane. 
„ nodulifer, Jauisch. 
,. decrescetis, Grunow. 
- „ marginutus, Ehrenberg. 
„ radiatus, Ehrenberg. 
,, asteromphalus , Ehrenberg. 
Eihmodiscus sp. (?). 
Htjalodiscus scoticus, Grunow. 
„ subtilii, Bailey. 
„ l&vis, Ehrenberg. 
Asteromphalus broolcei, Bailey. 
A ctinoptychus spl.endens, Ralfs. 
Adinocyclus sparsus ( = Eupodiscus, Gregory). 
„ japonicxis, Castracane. 
Station 76 (Sounding 140), off the Azores (see Chart 10 and Diagram 3). 
July 3, 1873 ; lat. 38° 11' N., long. 27° 9' W. 
Temperature of air at noon, 
71°’8 ; mean for the day, 69°'9. 
Temperature of water : — 
Surface, .... 
700 
500 futhoms, 
47-3 
100 fathoms, 
56-5 
600 „ 
45-2 
200 „ ... 
53-6 
700 „ . . 
43-1 
300 „ ... 
51-6 
800 „ 
41-2 
400 
49-5 
Bottom, 
40 0 
Density at 60’ F. at surface, 
1 02699 ; 
150 fathoms, 1 ‘02662 
; bottom, 1*02688 
Depth, 000 fathoms ; deposit, Pteropod Ooze, containing 52‘22 per cent, of 
carbonate of lime (see Murray and Iienard, Deep-Sea Deposits Chall. Exp.). 
\ t 1 5 a. m short* ned and furled sails, and got up steam to sound and dredge. Sounded 
in 000 fathoms. Put over dredge. At 2 p.m. obtained temperatures at intervals of 
00 fathom down to the bottom. Hove up dredge with some specimens, and put it over 
am. It 4.15 P.m. hove up dredge, which contained a few speeimens. At 6 p.m. com- 
plet'd temperatures, and at 7.30 p.m. made all plain sail. 
Distance from St. Michael’s at noon, 67 miles. 
