FISHERY BULLETIN: VOL. 79, NO. 3 



Splienotic 



Parietal 



Supraethmoid 



Vomer 



Postlemporal 



Epiotic 



Lateral ethmoid 



Frontal 



Pterotic 



Supraoccipital 



Figure 15. — Dorsal view of cranium of Antenna ri us sanguineus, 

 LACM 8125, 76 mm SL. 



Parietal I 



Sphenotic 



Supraethmoid 



Vomer 



lateral ethmoid 



Posttemporal 



Epiotic 



Supraoccipital 



Figure 16. — Dorsal view of cranium of Loph- 

 ichthys hoschimai, UW 20773, 47 mm SL. 



Pterotic 



Frontal 



16); they diverge laterally to a much greater 

 extent than in the other genera examined in 

 response to a much wider vomer and laterally 

 expanded lateral ethmoids. 



In contrast to all other antennarioids examined, 

 the frontals of Chaunax (Figure 18) are elongate 

 and narrow, meeting on the midline for their 

 entire length. The lateral ethmoids of this genus 

 are also unusually long and narrow. 



In Antennarlus, Lophichthys, Tetrabrachium , 

 Chaunax, and Dibranchus the parietals are well 



separated from each other by the supraoccipital. 

 In Brachionichthys, however (Figure 17), these 

 elements approach each other above the supra- 

 occipital and meet on the midline, roofing over a 

 small longitudinal passageway within which lies 

 the posterior tip of the pterygiophore of the third 

 dorsal fin spine. 



Mandibular arch (Figures 8, 9, 20-25).— The 

 premaxilla of Antennarius is very similar to that 

 of Tetrabrachium (Figures 8, 20A); both genera 



398 



