. Bulletin. Natural history; Natuurlijke historie. 14 PEABODV MUSEUM BULLETIN 43. Fig. 4. Measurements. Numbers correspond to the following measurements, described in the text: I, SL; 2, BL; 3, HDL; 4, PTAL; 5, PDL; 6, DFPT; 7, DFPV; 8, DFAN; 9, DFCD; 10, AFCD; II, HDD; 12, DPTH; 13, MINCD; 14, MAXCD; 15, PAL. magnification necessary for interpreting the morphology of the fossil while at the same time allowing a wider angle of view (without the scope) for measurement. A similar technique of using the dissecting scope to mark individual scales and then counting the marks without the scope was t
. Bulletin. Natural history; Natuurlijke historie. 14 PEABODV MUSEUM BULLETIN 43. Fig. 4. Measurements. Numbers correspond to the following measurements, described in the text: I, SL; 2, BL; 3, HDL; 4, PTAL; 5, PDL; 6, DFPT; 7, DFPV; 8, DFAN; 9, DFCD; 10, AFCD; II, HDD; 12, DPTH; 13, MINCD; 14, MAXCD; 15, PAL. magnification necessary for interpreting the morphology of the fossil while at the same time allowing a wider angle of view (without the scope) for measurement. A similar technique of using the dissecting scope to mark individual scales and then counting the marks without the scope was the most reliable way to count scales. All measurements were made to the nearest millimeter using dial calipers or, for larger fishes, a steel centimeter ruler. The following measurements were taken for each specimen (see also Fig. 4). ABBREVIATIONS AND DEFINITIONS FOR MEASUREMENTS BL distance from the posterior margin of cleithrum to the base of the axial lobe of the heterocercal tail (a sort of inflexion point in the outline of the scaled portion of the tail) SL distance from the anterior tip of the snout to the base of the axial lobe of the heterocercal tail PTAL distance between the origins of the anal fin (base of the first fulcrum) and one of the pectoral fins HDL distance from the tip of the snout to the posterior margin of the clei- thrum, along the axis of the parasphenoid DFB length of the base of the dorsal fin; from the base of the first fin fulcrum to the base of the most posterior lepidotrichium AFB length of the base of the anal fin; from the base of the first fin fulcrum to the base of the most posterior lepidotrichium PDL predorsal length; distance from the tip of the snout to the base of the first fulcrum of the dorsal fin PAL preanal length; distance from the tip of the snout to the origin of the anal fin DFPT distance between the origin of the dorsal fin and one of the pectoral fins DFPV distance between the origin of the dorsal fin and one of the pelvic fins
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Keywords: ., bookcentury1900, bookcollectionbiodiv, booksubjectnaturalhistory
