. Bulletin - United States National Museum. Science. 142 NATIONAL MUSEUM BULLETIN 260 The differences between the specimens at hand and the specimen of Schellenberg are presumably not attributable to differences in sex or size, for the largest specimen at hand is 28 mm long and thus approxi- mates that of Schellenberg; even though it is a male, and Schellen- berg's a female, the family Stegocephalidae is not known to have such extreme sexually dimorphic Figure 69.—Parandaniexis mirabilis Schellenberg, male, mm, Baja Slope Expedition Sta. P 285-61, lateral view of animal.
. Bulletin - United States National Museum. Science. 142 NATIONAL MUSEUM BULLETIN 260 The differences between the specimens at hand and the specimen of Schellenberg are presumably not attributable to differences in sex or size, for the largest specimen at hand is 28 mm long and thus approxi- mates that of Schellenberg; even though it is a male, and Schellen- berg's a female, the family Stegocephalidae is not known to have such extreme sexually dimorphic Figure 69.—Parandaniexis mirabilis Schellenberg, male, mm, Baja Slope Expedition Sta. P 285-61, lateral view of animal. Parts surrounding body are setae and hooks of sabellid and polynoid polychaetes found in alimentary tract of amphipod. The prehensile character of pereopod 2 is unusual for Stegocephali- dae but is reminiscent of similar conditions in various pelagic Lysian- assidae suspected of being commensals with salps and tunicates. The benthic and not pelagic character of Parandaniexis mirabilis is, how-. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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