RICHARDSON and LAROCHE: DEVELOPMENT AND OCCURRENCE OF ROCKFISHES 



Table?. — Meristics from larvae and juveniles of Se6as/espmni^<>r off Oregon, based on unstained specimens. Specimens above dashed 

 line are undergoing notochord flexion. All specimens had 8 superior and 7 inferior principal caudal fin rays and 7 branch iostegal rays on 

 each side. 



17 

 17 

 18 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 



17 

 17 

 17 

 18 

 17 



18 



17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 1- 

 16 

 17 

 17 

 17 

 17 

 17 

 1; 

 17 

 17 

 17 



17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 



17 

 17 

 17 



17 

 17 

 18 

 17 

 17 

 18 

 17 

 17 

 17 

 17 

 17 

 17 



17 

 17 



■7 

 17 



17 

 17 



I.S 

 IS 

 1.5 

 I.S 

 1,5 

 1,5 

 IS 

 1.5 

 I.S 

 1.5 

 I.S 

 1,5 



1.5 

 15 

 1,5 

 1,5 

 1,5 

 I.S 

 I.S 

 1.5 

 IS 

 1.5 

 1,5 

 1.5 

 1.5 

 I.S 

 1.5 

 1,5 

 1.5 



1 ; 

 i.f 



I.S 

 1.5 

 1,5 

 1.5 



1.5 

 1.5 

 15 

 l.i 

 1.5 

 1.5 

 I.S 

 1,5 

 1.5 

 1,5 

 1,5 



=44 

 =40 



x44 

 «42 

 «44 



=41 



43 

 40 

 43 

 44 

 43 



=51 

 =50 



'Forming 



^Not formed 



^Postenormost dorsal or anal spine appears as a soft ray 



"Transforming 



5Pelagic luvemle 



5Benthic juvenile 



Distinguishing Features. — Characters useful in 

 distinguishing the smallest larvae (7.8 mm) of S. 

 pintager identified from our collections are the 

 presence of remnants of both dorsal and ventral 

 midline melanophores the anterior of which are 

 nternal, the lightly pigmented pectoral fins, 

 melanophores at the tip of the lower jaw and on the 

 anteroventral margin of the maxillary, the pres- 

 ence of one or two large external stellate melano- 

 phores on the (i- sum just posterior to the parietal 



spines, the relatively deep body (40'7f SL), long 

 parietal spines (24'^f HL), and long pectoral fins 

 (25% SL). Later stage larvae are characterized by 

 their relative lack of pigment on the trunk except 

 over the gut, together with the relatively deep body 

 and long parietal and third posterior preopercu- 

 lar spines. Meristics, presence of the supraocular 

 spine, flat to convex shape of the interorbital 

 space, and dark blotch at the base of the spinous 

 dorsal serve to distinguish the juveniles. 



23 



