. Bulletin - United States National Museum. Science. isopoDs OF Noirrri amkrkw. 298 Miciil, iM(li(;itiiidian line, about the middle of tho seonuMit. This seg- uieiit terminates posteriorly in three small teeth, one median and one lateral to this on either side. The inner fixed branch of the uropoda does not extend ))evond the tip of the terminal abdominal seo-ment. Th(» outer post-latei'al anjj'le is very acute. The outei- branch of th<' uro])()da is \erv lono- and extends beyond the imier l)ranch a distance* equal to half the lennlli of the* iiuiei- bi-anch. ll teiiniiiat<'s jn :i lono-


. Bulletin - United States National Museum. Science. isopoDs OF Noirrri amkrkw. 298 Miciil, iM(li(;itiiidian line, about the middle of tho seonuMit. This seg- uieiit terminates posteriorly in three small teeth, one median and one lateral to this on either side. The inner fixed branch of the uropoda does not extend ))evond the tip of the terminal abdominal seo-ment. Th(» outer post-latei'al anjj'le is very acute. The outei- branch of th<' uro])()da is \erv lono- and extends beyond the imier l)ranch a distance* equal to half the lennlli of the* iiuiei- bi-anch. ll teiiniiiat<'s jn :i lono- acute extremity. Only one specimen of this species was lak(Mi in Florida b\ Pi-of. A. S. Packard. The type is in the Museum of Comparative Zoology at Harvard College. Cat. No. ()78ii, M. C. Z. This speci(\s is namea for Prof. W. S. Faxon, who very kindly assisted me 1)}' letting me have foi- exan)ination the collection in the Museum of Comparative Zoology at Harvard University. EXOSPHiEROMA OCTONCUM (Richardson). S/iliiiroiiKi iictuiicHiii KiciiAKDsoN, Proc. U. S. Nat. Mus.,XXI, 1S()7, p. Slid; Ann. Mag. Nat. S(»c- ond pair extend fully to the posterior niiu-gin of th(> tirst segment. Thoracic segments subequal. Epimera broad and ex- tending downward, forming an angle with the segments. First abdominal segment with two low^ tubercles close together, situated oiie on either side of the ^"'- I'\ OC- m(>dian line; terminal segment toncum. max- triangular, with apex narrowly '^-liped. x5i|. rounded and sides slightly infolded, forming a small opening when seen from below. Six low tubercles are situated on this segment, two in longitudinal series on either side of the median line—the lower ones being a little farther apart than the upper ones—and one on either side of the scries. The uropoda do not reach. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience