PLATE 9. 
Figs. 43-46. Chauliodus barbatus Garman, 
Fig. 43. Axial section vertical to the median plane of the fish through a regular simple 
radiating organ with pigment sheath. Stained: haematoxylin-picric acid-fuchsin. 
Drawing; magnified 1: 280. c, connective-tissue membrane forming the cover- 
ing of the mass of radiating cells on the outer side; h, outer apparently struct- 
ureless covering of organ; 1, central mass of polyedrical cells; m, granular 
protoplasmic mass at the base of the organ; p, pigment sheath; pe, peripheral 
cylindrical radiating cells. 
Fig. 44. Axial section vertical to the median plane of the fish through an irregular simple 
radiating organ with pigment sheath. Stained: haematoxylin-picrie acid-fuchsin. 
Drawing ; magnified 1: 280. ec, connective-tissue membrane forming the cover- 
ing of the mass of radiating cells on the outer side; h, outer, apparently 
structureless covering of organ; 1, central mass of polyedrical cells; m, gran- 
ular protoplasmatic mass at the base of the organ; p, pigment sheath; pe, 
peripheral cylindrical radiating cells. 
Fig. 45. Axial section vertical to the median plane of the fish through a medial lateral 
compound radiating organ. Stained: haematoxylin-picrie acid-fuchsin. Draw- 
ing; magnified 1: 140. A, proximal spherical part of the organ; a, mass of 
small cells in the central portion of the proximal spherical part of the organ ; C, 
constriction between the proximal and distal parts of the organ; e, connective- 
tissue capsule within the pigment sheath; D, distal paraboloidal part of the 
organ; d, gelatinous connective tissue occupying the distal part of the organ ; 
f, cells in the facets of the outer region; i, inner region; 1, cells composing 
the middle region; m, middle region; 0, outer region; p, pigment sheath; pe, 
large conic cells of the inner region; r, reflecting layer. 
Fig. 46. Transyerse section through the centre of the proximal spherical part of a medial 
lateral compound radiating organ. Stained: haematoxylin-picric acid-fuchsin. 
Drawing; magnified 1: 840, a, mass of small cells in the central portion of the 
proximal spherical part of the organ; b, blood vessels extending radially to 
the centre of the sphere; e, connective-tissue capsule; nu, nucleus of the conic 
cells; p, pigment sheath; ph, proximal only slightly stainable part of the 
conic cells; pt, peripheral highly stainable part of the conie cells. 
