334 



ARKIV FÖR ZOOLOGI. BAND 1= 



D a t e. 



Lat, N. Long. E Temp. Sal. Pn. qt, Pn. ql. 



26 



26 



27 

 27 

 28 



I 



17° 5' : 64 3 27' 



17°28' , 66^14' 



17^55' ! 67 c 56' 



18 Q 20' 

 18°46' 



69°47' 

 71°37' 



27,4 

 27,8 

 28.3 

 28,6 

 29,6 



The salinity is as a rule high, which is remarkable as 

 large rivers carry fresh water in the Arabian Sea. The plank- 

 ton ^belongs chiefly to the desmotype. The diatoms found in 

 the middle of the route belonged to Hemidiscus cuneiformis, 

 which in January advanced to the middle of the Red Sea. and 

 then also appeared in the northern parts of the Arabian Sea. 

 The sample collected at 17° N. 66' E. was remarkable for an 

 abundance of Pyrocypris chierchice. 



9. Arabian Sea and Gulf of Aden, Bombay — Karsehi— 

 Aden 1903. 



Date. 



Lat. N. Long. EJ Temp. Sal 



Pn. qt. Pn. ql. i NS. 



I 4 



» 4 



J 20°28' 



| 21=32' 



j 22°30' 



10 i 24°37' 



11 



12 

 13 

 14 

 15 

 16 

 17 

 17 



23 ; 37' 

 2122' 

 19°31' 

 16=51' 

 15°17' 

 13 c 44' 

 12°49' 

 12°18' 



35.71 

 35,35 

 36,24 

 36,76 

 36,36 

 36,49 

 36,45 

 36,33 

 36 ; 02 

 36,11 

 36,15 

 36,24 



L 

 Cp I) 



» 



Cp 



Cp 



Cp Pr 



Cp Pr 



Cp Pr 



Cp Pr D 



Cp 

 Cp I) 

 I) Cp 



30 



32 

 17 

 52 

 56 

 48 

 86 

 31 

 26 

 29 



The figures show that the salinity was high also in the 

 northern part of the Arabian Sea, The diatoms were to a 

 certain extent forms of styli- and didy musplankton and, besides. 

 sparingly Thdlassiothrix Jongissima and Pseudoeunotia doliolus. 

 The sample from 22 N. 67°E. contained large masses oiSdlpa sp. 



1 This sample could not be thoroughly examined, because it contained 

 too niuch rost. 



