102 SALMONID^. 



cseca are so wide — so much wider than in S. fario, that the re- 

 duction of their number has evidently been caused by a con- 

 fluence of several cajca into one. 



o-v. 8kins, from 9 to 19 inches long. Loch Scone, Perthshire. 

 From Mr. Parnell's Collection. Caught in the mouth of July. 



w-l3. Skins, from 8 to 19 inches long. Eiver Forth. From Mr. 

 ParneU's Collection. 



y. Skin, 12 inches long. Branch of Loch Lomond. From Mr. Par- 

 nell's Collection. Caught in the month of September. 



5. Skin, 21 inches long. Loch Lomond. From Mr. Yarrell's Col- 



lection. This is probably the specimen which served for the 

 woodcut heading Yarrell's description of Salmo levenensis. 



e. Skin, 15| inches long. From Mr. YarreU's Collection. 



i^. Stuffed, 20 inches long. Lake Windermere. Presented by Sir 

 J. Richardson. 



7j. Nine inches long. From the Collection of the Zool. Soc. Caec. 



pyi. 78. 



6. Skin, 11 inches long. Lake Windermere. From Mr. YarreU's 



Collection. 

 i-K. Seven inches long. Windermere. Purchased of Mr. Wright. 



Caec. pyl. 65. 

 X-^t. Seven inches long. Rothay River, Westmoreland. Purchased 



of Mr. Wright. Caec. pyl. 71. 



Description of a Male specimen. 



inches. 



Total length 131 



Greatest depth of the body 2f 



Length of the head 2|- 



Girth of biggest part of the body 6 



Least depth of the tail 1|: 



Oirth of the narrowest part of the tail 2f 



Distance between end of snout and eye f 



Diameter of the eye |- 



Length of the maxillary bone 1^ 



Distance between eye and angle of prseoperculum . . 1 



Greatest width of operculum f 



•Greatest depth of operculum ^ 



Distance between occiput and origin of dorsal fin . . 3|^ 



Distance between end of dorsal and root of caudal . . 5 



Length of base of dorsal 1-^ 



Greatest height of dorsal If 



Length of pectoral 1| 



Distance between root of pectoral and root of ventral 3-1- 



Length of ventral fin If 



Distance between root of ventral and origin of anal . . 2^ 



Length of anal fin f 



Greatest depth of anal 1^ 



Length of longest caudal ray 1|- 



Length of middle caudal ray 1 



