I. SALMO. 85 



VI. Hungary. 

 14. Salmo microlepis. 



? Trutta fluviatilis,ifcfarsi7. Damib. Pann.-Mys. Pise. p. 77, tab. 26. fig. 1. 



D. i3-14. A. 11. P. 14. V. 9. L. lat. 135-140. L. trans. 29/30. 

 Caec. pyl. 72. Vert. 60-61. 



Although we have only young specimens of this species, its cha- 

 racters are so well marked that no doubt can be entertained of its 

 being distinct from the other European non-migratory species. In 

 comparing specimena with the following diagnosis, the size of the 

 examples from which it is taken must be borne in mind. 



Attaining to a length of — ? inches ; female mature at a length of 

 8 inches. 



Head rather short, body somewhat slender. The posterior point 

 of junction of operculum and suboperculum is midway between the 

 lower anterior angle of the suboperculum and the upper end of the 

 gill-opening. Lower limb of the praeoperculum distinct, forming an 

 obtuse angle with the hinder one. Snout short : maxillary stout and 

 broad ; in specimens 8| inches long it does not extend to the vertical 

 from the hind margin of the eye. Teeth moderately strong, those 

 of the vomer in a zigzag line, rarely two side by side. Pectoral^ fin 

 rather obtuse, its length being more than one-half of the distance of 

 its root from that of the ventral fin. Caudal fin emarginate, the 

 length of its middle rays being contained once and three quarters in 

 that of the outer ones. There are fifteen or sixteen scales in an 

 oblique series, descending from behind the adipose fin backwards to 

 the lateral line. 



Greenish or brownish, shining silvery, with round, sometimes 

 reticulated black spots on the sides ; more or less numerous red or 

 orange-coloured spots are scattered between them. One of the spe- 

 cimens shows twelve Parr-marks ; none of the fins have a yeUow or 

 black margin. 



A non-migratory species from Hungary. 



a. Eight inches and two-thirds long : female, with distinct ovarxeo. 

 Hungary. From Hr. Jeitteles's Collection. 



h. Eight inches and a half long : male, with the testicles fully deve- 

 loped. Pohorella. From Hr. Jeitteles's Collection, 



c. Seven inches and three quarters long : female, with the ova nearly 

 fuUy developed. Hungary, From Hr, Jeitteles's Collection, 



Heckel and Kner (Siisswasserf. p. 258) describe a non-migratory 

 Trout from Teschen (Austrian Silesia) under the name of Salav 

 spectahilis. The vicinity of the habitat of this species to that of 

 S. microlepis induced me to compare these fishes ; but I have not 

 been able to find evidence of their specific identity. The original 

 description of >S. spectahilis, given by Valenciennes, does not agree 

 with our specimens, nor can I understand, from a comparison of 

 Valenciennes's and Heckel's descriptions, the reason why the latter 

 has identified the Teschen Trout with S. spectahilis. Nothing is 

 mentioned of a comparison of specimens of both species having taken 



