. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PERTVISCERAL FLUID OF ECHIXODERMS. 245 pigment from food, it may be that they are the descendants of the pigmented cells (chromatophores) of the larval Echinoidea. These cells are present in the segmentation cavity of the larval Echinoids, but I have not found any reference as to their occur- rence in the larva? of other classes. If this is true, then we are dealing with an amoel" which is specific in the Echinoidea and may yet be found lo be derived from the colored characu-ri-tic of the Kchinoid ;. &
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PERTVISCERAL FLUID OF ECHIXODERMS. 245 pigment from food, it may be that they are the descendants of the pigmented cells (chromatophores) of the larval Echinoidea. These cells are present in the segmentation cavity of the larval Echinoids, but I have not found any reference as to their occur- rence in the larva? of other classes. If this is true, then we are dealing with an amoel" which is specific in the Echinoidea and may yet be found lo be derived from the colored characu-ri-tic of the Kchinoid ;. ".V .). 30. - ,. (' " Amu 1 \\ itii colnrle les" (1 re more widely di-tribuied in the Kchim -derm- tin- pum« -uted ones .ind are loimd in the tabk-aud i li~inti-^raic -01 >n after withdrawal from tin- bod\-. Tlu-x arc drr|ily stained b>' nu-tlu'lene blur--ea\vatri- or iH-uiral red--ra\\aH-r -olution- ction \vhich i- not i haractcr- istic of the "amoeb with colorle-- -plu-ruli--" in the other classes. It is to be noted that the -i/.- of the >pherule~ i- constant for any i;i\ en am»d'oc\ ie, but that there is a X'ariatioii in the H/e- of the spherules of amoebocyte- characteristic <pf dilti-rent animal-. Theel has also remarked upon this and ha- pointed out the "amocbocytes with colorless spherules" predominate in the I lolothuroidea which he studied. He says: "In the holotlmrid- the white corpuscle- an- thoroughly predominant, though, tl. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biolo
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
