FISHERY BULLETIN: VOL. 69, NO. I 



Pacific (Fig. 9). This species similarly is ab- 

 sent from the central water mass of the North 

 Pacific (Moser and Ahlstrom, 1970). There is 

 a striking similarity in the distributions of 

 larvae of D. laternatus and those of Bathylagus 

 nigrigenys Parr (Fig. 3) in the EASTROPAC 

 area. D. laternatus is one of the smaller species 

 of myctophids, measuring only 20.6 to 30.0 mm 

 as adults; hence its biomass probably is not as 

 great as its larval abundance would suggest. 



Diogenichthys atlanticus ( Taning ) 

 ( 29 occurrences, 92 larvae) 



In contrast to its cogener, larvae of Diogen- 

 ichthys atlantictis were taken mostly in the 

 central water mass of the South Pacific on 

 EASTROPAC I (Fig. 9). Most of the occur- 

 rences were to the south of lat 10° S on three ad- 

 jacent lines (along long 92°, 98°, and 115° W). 

 Two occurrences at the southern end of the 

 Alaminos pattern, however, indicate that this 



20* 



Figure 9. — Distribution of larvae of two species of myctophids of the genus Diogenichthys on EASTROPAC I. 

 Records of occurrence of larvae of D. atlanticus (Taning) are shown as triangles, records of occurrences of 

 larvae of D. latematits (Garman) as large circles with dot in center for hauls containing to 100 larvae, and 

 as large solid circles for hauls containing 101 or more specimens of this species; negative hauls are shown 

 as small solid circles. 



26 



