WIGLEY and STINTON: REMAINS FROM MARINE SEDIMENTS 



-41° 



40° 



Cephalopod beaks were present at 12 stations, 

 at a depth range of 76 to 567 m. Their average 

 density was 38/m-, and maximum density 

 130/m-. Highest densities were at the deepest 

 stations sampled, stations 54 and 55, where 

 water depths were 366 and 567 m. 



Scaphopod shells were collected at 11 stations. 

 Caduhis pandionis was present only on the con- 

 tinental slope at depths between 139 and 366 m. 

 Average density at the six stations where it oc- 

 curred was 41/m^ and maximum density was 

 110/m-. Dentalium spp. occurred along the con- 

 tinental shelf margin at depths of 91 to 183 m. 



Table 13. — Bathymetric distribution of cephalopod beaks 

 and scaphopod shells and the number of stations at which 

 each occurred. 



Figure 16. — Geographic distribution of cephalopod beaks. 





, 7iO° 



41*- 



. 6o; 



40* 



20 



[BLOCK 

 ISLAND 



40 y ' 



. - MARTHAS VINEYARD 



NANTUCKET 







-41''- 



..-o \ 



80. 



100 

 200 

 500 



o ^ o 



"S --^ 



o ^ ^ o 





^ Si. - -- ' 



ipOO METERS 



CADULUS PANDIONIS 



7'l 



I 7,0'' , 



- 60? 



1 I I TTTi I I I 1 1 ^t;^; — I 1 1 r' 



BLOCK 

 [ ISLAND ' -./^ 



40 



^- MARTHA'S VINEYARD J 



NANTUCKET 



■a. 



^-l 1 r-^ 



I kill 



\ / IV 



I / 1 V 





\ ( .f r 



-41* 





o \ o 



80 . ' 



•404 '°° r 

 200 ' 



500 '^ 



1000 METERS 



,1 \\ - .^•'-^^"V^^ 



DENTALIUM SPP. 



To' 



1 1 1 — ^TT^ — I 1 1 1 1 — ^x^s — I r 



-40* 



7'l 



7'0* 



Figure 17. — Geographic distribution of shells of the scaphopods, Cadulus pandionis and Dentaluim spp. 



25 



