1. 9ALM0. 05 



a transverse series of teeth across its base ; body of the vomer with 

 a double series of strong teeth, the teeth being placed either oppo- 

 site to each other or alternately ; this series of teeth is persistent 

 throughout life. Fins comparatively short and rounded : the length 

 of the pectoral is one-half, or rather less than one-half, of the distance 

 of its base from that of the ventral ; in specimens under 10 inches 

 it is somewhat longer. The caudal fin is emarginate in young ex- 

 amples, but has become truncate in specimens of eight inches in 

 length, in which the length of the middle caudal rays is only two- 

 thirds of that of the outer ones. The hind part of the body is short 

 and rather high ; there are about sixteen scales in a transverse 

 series descending from behind the adipose fin obliquely backwards to 

 the lateral line. 



Body, head and dorsal fin generally with numerous red and black 

 spots ; a part of the latter have generally a light edge ; these black 

 spots are either round or more irregular in shape, composed of 

 X-shaped marks. Anterior margin of the dorsal and anal, and the 

 outer one of the ventrals, generally yellowish. 



A non -migratory species, inhabiting numerous fresh waters of 

 Central Eui'ope, Sweden and England ; rivers of the Maritime Alps. 



a. Fine specimen. Scar River, Caldew. Purchased of Mr. Wright. 



b, c-f. Fine specimens. River Caldew, Cumberland. Purchased of 



"Mr. Wright. Vert. 58. 



g-i. Fine specimens. River Eden. Purchased of Mr. Wright. 

 Vert. 58. 



k-l. Fine specimens. River Fething, tribixtary of the Eden. Pur- 

 chased of Mr. Wright. 



m-p. Fine specimens. River Derwent. Purchased of Mr. Wright. 

 Vert. 58. 



q-r. Eight inches long. Troutbeck River, Westmoreland. Pur- 

 chased of Mr. Wright. 



s-u. Seven inches long. Dalebeck River. Purchased of Mr. Wright. 



v-x. Fine specimens. Port Sodrick, Isle of Man. Purchased of 

 Mr. Wright. 



y-ft. Fine specimens. Kirk St. Anne, Isle of Man. Purchased of 

 Mr. Wright. Vert. 58. 



y-S. Fine specimens. Island of Islay. Presented by W. J. 

 FfennoU, Esq. This variety resembles closely the Gwyniad of 

 the Ewenny. 



e, i]-d. Sterile specimens, 14 inches long. River Ewenny (tributary 

 of the Ogmoro), Glamorganshire. Presented by the Rev. E. P. 

 Nicholl. Caught in May. " Gwyniad." 



C Stei-ile female fish, 15 inches long. River Usk, near Brecon. 

 Presented by J. Lloyd, Esq., Jun. Vert. 58. 



t. Many male, female, and sterile specimens, from 7 to 13 inches 

 long. River Usk, near Brecon. Presented by J. Lloj'd, Esq., 

 Jun. Vert. 58. Ctee. pyl. 40-45. 



K, X-£. Seven inches long, and young. Goodwick, near Haverford- 

 west. Presented by Hugh C. Owen, Esq. 



VOL. VI. F 



