EEPORT ON THE DEEP-SEA FISHES. 



27^ 



5. Regular ocellar projecting organs, 



a. Distribution, 



h. Structure, 



c. Innervation, 



d. Function, 



e. Development, 

 /. Doubtful structures in the s/dn, 



6. Regular ocellar covered organs, 



a. Distribution, 

 h. Structure, 



a. General, 



p. Histology, . 



(1) The scales, 



(2) TJie pigmented membranes, 



(3) 77(6 liglit-reflecting membrane 



(4) The phosphorescent organ, 



(5) Tlie slime-canal and its branches, 



(6) Tlie tissue overlying the slime-canal, 



(7) The meandriform gland-tuben, 



c. Innervation, 



d. Function, 



e. Development, 



V>. Irregular Glandular Organs, 



7. Glandular organs of in-egular position, . 



a. Distribution, 



b. Structure, 



c. Functimi, 



8. Glandular organ on the lower jaw, 



a. Distrilndion, 



b. Structure, 



c. Function, 



9. Differentiated barbels and fin-rays, 



a. Distribution, 



b. Structure, 

 i: Function, 



10. Glandular organs under the gill-covers, 



a. Distribution, 



b. Structure, 



c. Function, 



11. Suborbital glandular organs without reflector, 



o. Distribution, 

 b. Structure, 



(1) In Astronesthes niger, 



(2) In Opostomicus micripmis, . 

 e. Innervation, 



d. Function, 



e. Development, 



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