The Biological bulletin (20371077802)

Title: The Biological bulletin

Identifier: biologicalbullet201mari (find matches)

Year: [1] (s)

Authors: 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

Subjects: Biology; Zoology; Biology; Marine Biology

Publisher: Woods Hole, Mass. : Marine Biological Laboratory

Contributing Library: MBLWHOI Library

Digitizing Sponsor: MBLWHOI Library

Text Appearing Before Image:

ONTOGENY OF SQUID MANTLE 143

Text Appearing After Image:

Figure 2. Photomicrographs (polarized light microscopy) of 5-/j,m-thick sagittal sections ot the ventral mantle that illustrate ontogenetic differences in IM-I collagen fibers. Sections were stained with picrosirius. The orientation of the mantle in both panels is identical. IM-1. intramuscular fiber system 1 collagen fiber: IT. inner tunic; MC. mantle cavity: OT. outer tunic: RMF. radial muscle band. Scale bar in A and B. 20 fim. (A) The ventral mantle of a newly hatched squid (DML. 5.5 mm) with a single IM-1 collagen fiber. The section is oblique to the sagittal plane. (B) The ventral mantle of a young 2 stage squid (DML. 65 mm). Note the low IM-1 collagen fiber angle and the absence of other IM-1 collagen fibers in the field of view in the hatchling squid. In the larger squid, IM-1 fiber angles are higher, and IM-1 collagen fibers are abundant.

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