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ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 27 



Fig. 19. a, Heteromastus filobranchus, a capitellid polychaete, showing 

 two anterior ends and a posterior fragment in the middle, 

 maximum width of animals 3 to 4 mm; b, Fecal pellets of 

 Heteromastus filobrane/ius, from canyon sediments, greatly 

 enlarged. 0.25 mm maximum grain size. 



(Photographs prepared by Dr. Jobst Hiilsemann and Mr. 

 Kurt Rottweiler). 



PHOTOGRAPHIC RESULTS 



Photography of areas covering the sampled bottoms was com- 

 pleted with some success. A camera and light were mounted, one in 

 each of the two jaws of the Campbell grab. This modification of the 

 grab with camera, will be described in a separate report by those who 

 designed it; they include Mr. Logan Smith of Logan Smith Associates, 

 Harbor City, California, and Professor K. O. Emery and Dr. Robert 

 J. Menzies, then in the Allan Hancock Foundation. I am indebted to 

 them for permission to use these photographs and the samples accom- 

 panying them. They are numbered 7517 to 7730 in the Station Lists, 

 and analyzed in the Analysis, below. 



The area photographed was presumably the same or near that of 

 the sample taken in the grab. There was considerable correlation, as 

 shown by the results. It should be noted that the size of the sample 



