Table 190.— Bathymetric occurrence of Astarte sp. , based 

 on 94 samples and 533 specimens. 



Table 194. — Bathymetric occurrence of Crassinel la sp. , 

 based on three samples and nine specimens. 



Depth range (m) 



Percentage of 



Samples 



Specimens 



Depth range (m) 



Percentage of 



Samples 



Specimens 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



1.1 



4.3 

 37.2 

 28.7 

 19.1 



9.6 



1.1 

 2.2 

 39.6 

 23.3 

 16.9 

 16.9 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



66.7 

 33.3 



55.6 

 44.4 



Total 



100.0 



Total 



100.0 



Tablel91. — Occurrence of Astarte sp. in bottom sediments, 

 based on 88 samples and 515 specimens. 



Table 195. --Occurrence of Crassinel! a sp. in bottom 



sediments, based on three samples and nine specimens. 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



3. 



4 



9. 



,1 



9, 



1 



42, 



,1 



17, 







6. 



3 



12, 



,5 



Specimens 



1.4 



5.2 



15.5 



57.1 



13.2 

 3.5 

 4.1 



100.0 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shel 1 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



Specimens 



33.3 

 66.7 



22.2 

 77.8 



Table 192. 



-Bathymetric occurrence of Crassinella lunulata, 

 based on 87 samples and 226 specimens. 



Table 196.--Bathymetric occurrence of Cerastoderma pinnulatum , 

 based on 466 samples and 3,317 specimens. 



Depth range (m) 



0-24 

 25-49 

 50-99 

 100-199 



200-499 

 500-999 

 1000-1999 

 2000-3999 



Percentage of 



Samples 



49.4 

 40.3 



5.7 

 4.6 



Specimens 



53.5 

 38.9 



3.5 

 4.1 



Depth range (m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Percentage of 



Samples 



4.5 

 18.7 

 43.5 

 27.3 



5.8 



0.2 



Specimens 



40.2 

 12.9 

 35.0 

 10.1 

 1.7 



<0.1 



Total 



100.0 



100.0 



Total 



Table 193. — Occurrence of Crassinella lunulata in bottom 



sediments, based on 87 samples and 226 specimens. 



Table 197.— Occurrence of Cerastoderma pinnulatum in bottom 



sediments, based on 403 samples and 1,825 specimens. 



Bottom type 



Percentage of 



Bottom type 



Percentage of 



Samples 



Specimens 



Samples 



Specimens 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



2.3 

 2.3 



4.6 

 36.8 

 46.0 



8.0 



3.1 

 1.3 



3.1 

 31.9 

 46.9 

 13.7 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shel 1 



Sand 



Silty sand 



Silt 



Clay 



Total 



8.9 

 13.7 

 5.9 

 1.6 

 5.7 

 43.7 

 9.9 

 2.2 

 8.4 



100.0 



7.7 

 8.4 

 2.5 

 4.5 

 7.5 

 58.3 

 6.4 

 0.8 

 3.9 



. . 



155 



