. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. FISH FAUNA OF LAKES OF SOUTHKASTKKX OREGON. SYSTEMATIC DISCUSSION. 79 EXPLANATION OF MEASUKEMEXTS. It is intended that tlie tables of measurements given in tliis paper, besides being of use in the identification of the species under consideration, shall express the amount anti character of the variation in certain tietails of structure as Avell as these can be determined by the study of a small series of specimens. Tt is pre- sumed that the true relationships of the fonns will be more clearly and deiiuitely. — Diagram showing niot
. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. FISH FAUNA OF LAKES OF SOUTHKASTKKX OREGON. SYSTEMATIC DISCUSSION. 79 EXPLANATION OF MEASUKEMEXTS. It is intended that tlie tables of measurements given in tliis paper, besides being of use in the identification of the species under consideration, shall express the amount anti character of the variation in certain tietails of structure as Avell as these can be determined by the study of a small series of specimens. Tt is pre- sumed that the true relationships of the fonns will be more clearly and deiiuitely. — Diagram showing niothoil of tiiking proportional moasiiroments. Lrnglk of body (a) recorded in millimeters. Length head (6) measured from tip of snout to posterior edge of operple, tho opercular flap, which is likely to shrink, not being considered. Depth Acnd, measured at occiput. Depth body, the great- est depth. Snout to dorsal (c). 57?ou/ to ventral (d), tip of snout to anterior end of base of fin. Depth caudal peduncle (e) measured at the narrowest place. Length of caudal peduncle (/), base of posterior anal ray to end of last vertebra; not to base of lowermost caudal ray, as the latter point is often indefinite. Length snout (g^, tip of snout to anterior border of eye. Diameter eye, varies greatly with age. In poorly preserved specimens the tissue surrounding the eye is often shrunken, leaving the opening abnormally large. Only well-preserved examples nearly equal in size ought to be compared. Interorbital width, measured on skull, the points of the di\'iders being closed as nearly as possible between the eyes. Snout to occiput (h 1, tip of snout to the point on occiput where scales of body first appear. Length bane (n. length l>a$e ofanalArom base of anterior to base of posterior ray. the extent of the membrane posteriorly not being taken into account. Height dorsal, height anal (t), length pectoral, length ventral {h, the length of longest ray in fin. Length caudal (m), meas
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfisheries, bookyear19
