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Handa Takeshi


Histological Structure of the Ctenidium of the Ark-shell Scapharca kagoshimensis (Arcoida : Arcidae)

Journal of National Fisheries University Volume 67 Issue 2 Page 43-69
published_at 2019-01
67-2-43-69.pdf
[fulltext] 2.71 MB
Title
サルボウの鰓組織
Histological Structure of the Ctenidium of the Ark-shell Scapharca kagoshimensis (Arcoida : Arcidae)
Creators Yamamoto Ken-ichi
Creators Araki Akira
Creators Handa Takeshi
Source Identifiers
Creator Keywords
Ark-shell Dorsal bent of ctenidium Interlamellar extension of filament Membranous flap of lip Ordinary filament Ventral bend of the ctenidium
The structure of the ctenidium of the ark-shell Scapharca kagoshimensis (Arcoida: Arcidae) histomorphologically ascertained as follows: 1). The dorsal bends of ctenidia do not fuse to the mantle (MT) and the visceral mass (VM). 2). The ridges of the ventral bent of ctenidium (VB) do not formed the food groove. 3). The demibranchs are filibranchiate, flat and homorhabdic. 4). The interlamellar connecting membranes are observed in all filaments between the inner and outer lamellae near VB. 5). The interlamellar extensions of filament are formed at abfrontal side of all filaments in the outer lamella of inner ctenidium and in the inner lamella of outer ctenidium, and are spreading out between the vessel of ordinary filament and the vessel-like interlamellar connecting vessels. 6). The fine frontal cilia and the coarse frontal cilia are arranged at the center and the both sides of the frontal surface of filament, respectively. 7). The tips of the inner palp of labial palp (IPP) and the outer palp of labial palp (OPP) are fixed with the suspensory membrane of labial palp on VM and MT, respectively. 8). The lateral oral grooves extend between IPP and OPP. 9). The proximal oral grooves extend between the inner lip and the outer lip (OL) on either side of the oral aperture. 10). OL is equipped with the membranous flap of lip.
Languages jpn
Resource Type departmental bulletin paper
Publishers National Fisheries University
Date Issued 2019-01
File Version Version of Record
Access Rights open access
Relations
[ISSN]0370-9361