NORTH AMERICAN SALMONIDAE 255 



Table 23. — Number of diagonal {oblique) scale rows in first row above the lateral line in North American Salmonidae 



' Foerster and Pritchard (1935a); Fraser River to northern British Colum- 

 bia. 

 ! Morton and Miller (1954). 

 3 Neave (1943); anadromous stock, Cowichan River, British Columbia. 



* Neave (1943); resident stock, Conichan River, British Columljiii. 



* Morton and Aliller (1954); anadromous stock, (?lackamas River. Oreg. 



* Morton and Miller (1954); resident stock. Rush Creek, Modoc County, 

 CalU. 



' Neave (1943); reared at Cowichan Hatchery, Vancouver Island, British 

 Columbia. 

 ' Mottley (1934a); Kootenay Lake, several rows above lateral line. 



• Neave (1943); reared at Veitch Creek Hatchery, Vancouver Island, Brit- 

 ish Coluniljia. 



'° Morton and Miller (1954); coastal streams of Oregon and Washington. 



n Morton and Miller (1954); S. c. pleurilkits, from Colorado River Basin. 



12 De\\'itt (1954) ; northern California coastal streams, counted along second 

 scale row above lateral line. 



" DeLacy and Morton (1943); Karluk Lake, Alaska. 



1* Wilder (1952); Moser River, Nova Scotia, count is from posterior margin 

 of head to end of vertebral column (presumably several scale rows above the 

 lateral line). 



Table 24. — Comparison of number of vertebrae and num- 

 ber of lateral-line scales, in North Ameriean Salmonidae 



samples or localities, the scale count (L) closely 

 approaches twice the vertebral coimt (V) with 

 one notable exception. The lateral-line scale 

 count for 0. gorhuscha is 2.5 times the vertebral 

 count. 



Neave (1943) noted this anomaly in 0. gor- 

 huscha and wrote — 



.\fter examining a few small pink salmon flngerlings 

 tlie iire.sent writer believes tliat the first scale iiapillae 

 show the same distribuliou as in other spei-ies but that 

 sub.sequently papillae develop between the primary mem- 

 bers of fhe lateral line series, as well as dorsad and 

 veutrad to the latter. This development can perhaps be 

 eori'elated with the comparatively large size atlaineil by 

 this species before s<ale formation begins, resulting in a 

 wider siiacing between the sense orgaii-s and thus leaving 

 room for tlie estiiblislinient of papillae. 



This close relation (except in gorbuscha) be- 

 tween vertebral count and lateral-line scale count 

 (approximate!}- twice the verterbral count) is 



