. Bulletin of the Natural History Museum Zoology. 106 ALLEN AND SANDERS. J 2 LENGTH {mm) Fig. 6. Neilonella salicensis. Length/frequency histogram of a sample taken from Atlantis II station 73 from the North America Basin. marked size groups. It is unclear whether these latter relate to annual settlements or to fortuitous periodic settlements. Internal morphology (Figs 7 & 8) This was one of the few deep-sea species that were kept alive for a few weeks following the processing of the sample. The external drab olive/yellow of the shell is in marked contrast to the spectacularly vi
. Bulletin of the Natural History Museum Zoology. 106 ALLEN AND SANDERS. J 2 LENGTH {mm) Fig. 6. Neilonella salicensis. Length/frequency histogram of a sample taken from Atlantis II station 73 from the North America Basin. marked size groups. It is unclear whether these latter relate to annual settlements or to fortuitous periodic settlements. Internal morphology (Figs 7 & 8) This was one of the few deep-sea species that were kept alive for a few weeks following the processing of the sample. The external drab olive/yellow of the shell is in marked contrast to the spectacularly vivid array of colours of the body organs. The stomach is a bright emerald green, the digestive gland a bright olive green and the gills are bright red. The gill plates are particularly vivid below the frontal cilia and dorso-laterally, in addition the mantle overlying the gills is also red. The margins of the palps are a diffuse pink as too is a band underlying the crest of the inner folds. The red and pink pigments are probably a cytochrome. The blood is not red in colour and probably contains a haemocyanin as do other protobranchs (Taylor, Daven- port and Allen, 1995). Elsewhere the palps are pale yellow and the yellow/pink effect is in marked contrast to the palp proboscides which are pure white. Gl CV Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Natural History Museum (London). Andover : Intercept
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