34 MR. F. DAY ON RACKS AND [Jan. 15, 



Lovells Cruter, a feeder of the Tuakitoto Lake, situated about 15 

 miles from the sea. They are large fish in good condition : the male 

 weighs 16 to the female 12 pounds. These fish have evidently not 

 been frequenting brackish or saline waters, at least the total absence 

 of X spots is, I suppose, according to the authorities, proof of such a 

 fact, and the spots of these fish now sent are round and oval. I 

 observed that the vomerine teeth are all gone, and only one or two 

 ancient tusks still on that bone of the female ; so age affects teeth 

 similarly to migratory habits." 



The following are the characters of this pair of Trout, which were 

 received in excellent condition, and are now preserved in spirit in the 

 Economic Fish Museum : — 



Male. Length of fish 32| inches. 



„ head 6| „ 



,, caudal fiin . . 4g „ 

 Height of body 7 ,, 



Eye. Diameter 1 inch, 3 inches from end of snout, and 3'2 inches 

 apart. 



L.l. 118, and 12 rows of scales from the adipose fin, downwards 

 and forwards to the lateral line. Teeth none on the vomer, some on 

 the palate, some on the tongue in two rows, four in each. The 

 maxillary reaches to § of a diameter behind the eye. Colours : dark 

 spots over the body, shoulder, and dorsal fins. 



Female. Length offish 31| inches. 



head 6r 



>> ucau u 4 



„ caudal fin. . 4| 

 Height of body 6| 



Eye. Diameter 1*55 inch, 1*6 inch from end of snout, and 2*4 

 inches apart. 



L. 1. 120 ; 14 rows of scales from the adipose fin downwards and 

 forwards to the lateral line. Teeth : a few on the front of the vomer. 

 Caudal fin emarginate. Colours : spotted all over the body. 



These two beautiful specimens of Trout are so exceedingly similar 

 to so-called Lake-Trout, that any ichthyologist who believed in the 

 numerous species of this fish, and was unaware from whence they 

 came, would undoubtedly term them Salmo/erox. 



As a considerable stress has, erroneously I believe, been laid 

 upon the number of csecal appendages among the Salmonidae, as 

 diagnostic of species, I give the following table : — 



Dr.Giinther. Anaclromous forms. Salmo salar Csec. appen. 51-77. 



„ „ argenteus ,, 61-67. 



trutta „ 43-61. 



,, „ orcadensis „ 50. 



,, „ brachypoma ,, 45-47. 



,. ,, eambricus „ 33-52. 



