486 



ONTOGENY AND SYSTEMATICS OF FISHES-AHLSTROM SYMPOSIUM 



Table 121. Selected Early Life History Features of Percoidel Parentheses enclose features known to characterize only some members of 

 a group. Head spination abbreviations— Supraoccipital: SI —small peak-like crest; S2 — SI with serrations; S3 — large vaulted spine-like crest with 

 serrations; S4 — low serrated median ridge; S5— entire surface rugose. Frontal: Fl —entire surface rugose; F2— one or more parallel or converging 

 serrated ridges; F3 — serrated supraorbital ridges; F4 — single spine on supraorbital ridge; F5 — large posteriorly projecting serrated spine. Preopercle: 

 PI— posterior margin with moderate to large simple spines; P2 — PI plus lateral ridge with one or more small simple spines; P3 — P2 with spine 

 at angle notably elongate; P4 — P3 with marginal spines serrate; P5 — posterior margin and sometimes lateral ridge with very small spines or 

 serrations. Other bones with simple spines, serrations or serrated ridges: Op— opercle; Sb — subopercle; lo— interopercle; Ta— tabular; Pt — 

 posttemporal; Scl — supracleithrum; CI— cleithrum; La — lacrimal; Co— circumorbitals; Na— nasal; Mx — maxillary shaft; D— dentary; Br— bran- 

 chiostegals; Pe — pterotic; Pa — parietal; Sp— sphenotic. Sequence of completion of fin rays: A. D,-A-D|-P,-P|; B. D,-P,-D,-A-P,; C. P,-P,-D,-A- 

 D,; D. P|-D,-A-D|-P,; E. A-D,-P,-P|-Di; F. P,-D,-A-D|-P|. Egg type: P— pelagic, buoyant; D— demersal; A — adhesive; M — egg mass; O— oral 



brooder. 



