staecki in having a truncate caudal fin, but differs by a unique combination of character states: tip of pelvic fin reaching between base of 4th and 5th anal fin ray
in males, and 39-42 scales in longitudinal series.
Description: Dorsal fin rays
IX, 11; anal fin rays
111,9; pectoral fin rays
(including upper rudimentary ray) 14; pored lateral line scales 16 + 9 (one paratype with 15 + 6, and another with 16 + 7); scales above lateral line to origin of dorsal fin 2; scales below lateral line to origin of anal fin 6; median predorsal scales 5 (4-5); median preventral scales 6 (one paratype with 5); rows of scales on cheek 2; circumpeduncular scales 15 (15-16); gill rakers 13 (two paratypes with 14); pseudobranchs 13 (12-13).
An evaluation of the precision of fin ray
, otolith, and scale age determinations for brook trout.
Paired symmetrical platelets, which occur bilaterally in the swivel joints situated between the dorsal and anal fin rays
and pterygiophores in Triglopsis quadricornis, Myoxocephalus scorpius and Taurulus bubalis have not been described previously, but their morphologies reveal common features and taxonspecific features.
affinis; dorsal fin rays
ranging from 25 - 37 in S.
7 Lateral Line Pores (a) 33 Dorsal Fin Spines 8 Dorsal Fin Rays
18 Anal Fin Rays
14 Pectoral Fin Rays
(a) 17 Pelvic Fin Rays
(a) 4 Principal Caudal Fin Rays
11 (a) Value reported is the average of left and right side measurement or count.
adornatus complex, by the high number of dorsal fin rays
(27-28), and conse-quently a large dorsal fin base length, beginning considerably anteriorly to the middle of the body, before the vertical line through the pelvic fin.
Dorsal rays XIII,17 (last divided to base); anal rays III,18 (last divided to base); pectoral rays 16 (upper two and lowermost unbranched); pelvic rays I,5; transverse scale rows from upper end of gill opening to base of caudal fin 43-45; scale rows above lateral line to origin of dorsal fin 9; scale rows below lateral line to origin of anal fin about 20; lateral line in two sections, the anterior part extending from upper edge of gill cover to below level of posteriormost dorsal fin ray
containing 37 scales and the posterior part containing 7 scales along middle of caudal peduncle; transverse scale rows on opercle 7; gill rakers on first branchial arch 5 + 12, total rakers 17, the rakers short and stubby, much shorter than gill filaments; vertebrae 10 + 14.
8 in juveniles) in HL; pelvic fin tips when depressed reaching to base of second or third soft anal fin ray
in mature adults; length of pelvic fins 1.
Anal fin rays
4 and 5 longer than other anal fin rays
A small series of matched (same fish) fin ray
samples were cut at the suture terminus and at the d/2 positions; some of these were also cut immediately distal to the condyle (basal cut) and the numbers of annuli were counted and compared.
Dorsal-fin origin posterior to anal-fin origin in females, on vertical through base of second anal fin ray
Lengths of the dorsal- (D2) and anal-fin (A2) bases are straight-line measurements from either the D20 or A20 to the posterior base of the terminal fin ray
of the respective fin.
Dorsal and anal fins with squamation between fin rays
extending to about 1/4 of fin; caudal fin scales extending to about 1/3 of the fin.
Whenever possible, the number of vertebrae and numbers of dorsal, anal, caudal, pectoral, and pelvic fin rays