Plate 8. 



Figs. 38-40. Chauliodus barbatiis Garmau. 



Fi"-. 38. The fish seen from the side. Drawing; natural size, a, veutroanal compound 

 radiating organs ; al, anterior lateral compound radiating organs ; ao, anteor- 

 bital compound radiating organs; Ba, simple radiating organs with pigment 

 sheath in the barbel ; ml, medial lateral compound radiating organs; so, sulior- 

 bital compound radiating organ; ve, ventromedial compound radialing organs; 

 vt, ventrotlioracic compound radiating organs; x, simple radiathig organs 

 with pigment sheath on the side of the head. 



Fig. 39. The fish seen from below. Drawing ; natural size, a, ventroanal compound 

 radiating organs; al, anterior lateral eomi)ound radiating organs; Ba, sim- 

 ple radiating organs with pigment sheath in the barbel ; g, guttural compound 

 radiating organs; ml, medial lateral compound radiating organs; u. groups of 

 simple radi.ating organs without pigment sheath ; vc, ventromedial compound 

 radiating organs ; vt, ventrotlioracic compound i-adiating organs. 



Fio'. 40. The lower jaw seen from below. Drawing ; magnilied 1:2; Ba, simple radiating 

 organs with pigment sheath iu the barbel. 



Figs. 41, 42. Idiacanthus autrostomus Gilbert. 



Fig. 41. The fish seen from the side. Drawing; natural size, a, ventroanal radiating 

 organs with pigment sheath ; al, anterior lateral radiating organs witli pigment 

 sheath ; ml, medial lateral r.adiating organs with pigment sheath ; jil, posterior 

 later.al radiating organs with pigment sheath ; so, suborbital radiating organ 

 witli pigment sheath ; n, suborbital group of small radiating organs without 

 pigment sheath ; ve, ventromedial radiating organs with pigment sheath ; vt, 

 ventrothoracic radiating organs with pigment sheath. 



Fig. 42. The flsli seen from below. Drawing; natural size, a, ventroanal r.adiating organs 

 with pigment sheath; g, guttural radiating organs with pigment sheath; ve, 

 ventromedial radi.ating organs with pigment sheath ; vt, ventrothoracic radiating 

 organs with pigment sheath. 



