OKIYAMA: MYCTOPHIFORMES 



217 



Fig. 113. (A) Paralepis elongata. 16.7 mm SL, from Rofen (1966a); (B) Notolepis coatsi. 60.5 mm, from Efremenko (1983); (C) Leslidiops 

 ringens. 9.4 mm, from California current region. SWFC collection; (D) the same, 28.5 mm; (E) Stemonosudis macrura. 1 1.2 mm, from Ege(1957); 

 (F) Sudis hyalina. 16.1 mm, from Shores (1969); (G) 5. alrox. 21.5 mm, from Berry and Perkins (1966). 



established complement of peritoneal pigment sections, spine- 

 tipped flanges on ventral region of preoperculum. over eye, and 

 snout. 5". alrox has a spine-tipped flange along lower jaw. and 

 the large spine at the preopercular angle is serrated only in 5. 

 airo.x. The precocious pectoral fin is relatively short until about 

 1 5 mm in S. atrox whereas it is very long even in 8.0 mm larvae 

 of 5. hyalina. The number of peritoneal pigment sections is 6 



(5 in early larvae) in S. atrox vs 7-8 in S. hyalina. Trunk 

 pigment is evenly distributed in S. atrox \s patchy in S. hyalina. 

 Except for this genus, the developmental features of this fam- 

 ily are remarkably cohesive. Known lar\ae have a very long 

 compressed body, a short trunk in early larvae, large head in 

 advanced larvae, elongated pointed snout with straight head 

 profile, various numbers of peritoneal pigment sections sequen- 



