dulcis dissectus because of its higher dorsal count (234).
With the larger sample sizes in the present study, an analysis of dorsal scale counts does not support a broad intergradation zone between L.
The number of dorsal scales are of no value in this determ ination because the numbers and ranges of dorsal scales found in samples of both taxa (see Table 1) widely overlap.
The variational extremes of total dorsal scales of the five samples of L.
7%), snout triangular in dorsal view; orbit diameter 3.
Dorsal and anal fins each flanked basally by 10-12 half scales, remainder of dorsal and anal fins without scales; large, diamond-shaped scales covering pelvic-fin base, remainder of pelvic fin and pectoral fin without scales; 5-7 rows of body scales extending onto base of caudal fin; upper and lower caudal lobes each with a single, enlarged, horizontally elongate scale.
3D) Trunk tan to light brown dorsally, pale ventrally; dark markings along trunk present but faded in some specimens; black pigmentation on scapular region and jaw easily visible; barring on caudal fin less distinct in older specimens; barring on dorsal fin faded and pigmentation on pectoral and pelvic fins indistinct.
A species of Synodus distinguished from all congeners by the following combination of characters: dorsal-fin rays 10-12, rarely 10; anal-fin rays 11-13, rarely 11; pectoral-fin rays 11-13; total caudal-fin rays 40-41; dorsal segmented caudal rays 9-10; ventral segmented caudal rays 9; dorsal procurrent caudal rays 11-12; ventral procurrent caudal rays 11; vertebrae 59-62; lateral-line scales 59-63, modally 60; predorsal scales 20-30; scale rows above the lateral line to dorsal-fin base 5.
Hyobranchial apparatus: Comprising median unpaired glossohyal, basihyal, three basibranchials and urohyal; and bilaterally paired dorsal and ventral hypohyals, anterior and posterior ceratohyals, interhyal, six branchiostegal rays, three hypobranchials, five ceratobranchials, four epibranchials and three pharyngobranchials (Fig.
Hyoid bar comprising dorsal and ventral hypohyals, and anterior and posterior ceratohyals.
Basibranchial tooth plate dorsal to, but not fused with, third hypobranchial.
Dorsal zygapophyses prominent on anterior vertebrae, ventral zygapophyses present on posterior precaudal and caudal vertebrae.