52 THE PHOSPHORESCENT ORGANS IN PORICHTHYS. 



d = dorsal row. 



e = flbrous connective tissue. 



/ = frontal row. 



g = gular row. 

 ga = gastric row. 



l in fig. 1 = lateral row; in flgs. 3, 4, 5, 6 and 7 == lens. 

 md == mandibular row. 



= occipital row. 

 00 = orbitoral row. 

 op = opercular row. 

 p = pectoral row. 

 P9 = pigment. 

 pl = pleural row. 

 po = postorbital row. 



r = reflector. 



s = scapular row. 

 sb = sub-branchlal row. 

 so = sub-opercular rows. 



V = ventral row. 

 Fig. 1. — Left side of Porichthys, showing arrangement of phosphor- 



escent organs, X |. 

 Fig. 2. — Ventral View of Porichthys, X |. 

 Fig. 3.— Section of frontal organ, X 235. 

 Fig. 4.— Section of upper opercular organ, X 235. 

 Fig. 5. — Section of pleural organ, X 235. 

 Fig. 6.— Section of gastric organ, X 235. 

 Fig. 7.— Section of outer anal organ, X 235. 



