212 Transactions.— Zoology. 
one-third the length of the snout. Tip of snout to occiput two-fifths the 
total length of the head measured to the hinder angle of the operculum. 
The interorbital space is only slightly convex. Opercles are thin, with ‘one 
centric strie. The posterior margin of the operculum is almost straight, 
oblique, the sub-opercular suture being at right-angles, and only slightly 
sinuated. The sub-opercular is three times as long as broad. The sii 
of the length of the fins to the total length is as follows :—The length being 
1:00; D. 125; P. 069; V. +100; A. -076; least depth of tail 126. The 
caudal fin is slightly emarginate. The dentition is complete and powerful, 
the intermaxillary mandibular and front vomerine teeth being the largest. 
The maxillary teeth are arranged in pairs. The head of the vomer has bi 
group of three teeth, and three on each side of the body. The tongue 1s 
armed with teeth arranged in the same manner and number as on the tice 
There are 120 perforated scales on the lateral line, which is prominent. 
From the front origin of the dorsal to the lateral line there are 26 scales, 
and from between the origin of the ventral and the lateral line there ae 
eighteen rows of scales. The scales are thin and rounded in posterior 
outline. Immersed nacreous scales occur along the back from the nape to 
beyond the dorsal. : 
The snout and muzzle are olivaceous black. The crown and occiput 
honey yellow. On the cheek and above the eye is a triangular patch * 
brown. The gill-covers are silvery white with a dusky hue, and have five 
dark spots, four on the operculum, and one on the pre-operculum. The 
under parts as far as the vent are pure white, : 
The nape and back dark blue-black, and the flanks bright silvery with . 
purple shade. Diffuse and X-shaped black spots on the back and sides, 
but only a few below the lateral line. Dorsal fin dusky brown with numer 
ous dark spots. Pectoral darkened toward the tip on the inner side. 
Ventrals and anal white. Adipose and caudal dark coloured. 
The fish which is now exhibited was sent to me yesterday by Mr. 
Greenfield, Secretary to the Acclimatization Society, Nelson, as being, 
probably, a specimen of the Californian salmon (Salmo quinnat). einen 
captured in Nelson Harbour, near to the mouth of the Maitai Stream, ® 
similar, but smaller, specimen of the same fish having been caught there & 
few days previously. ; 
Californian salmon having been turned out, three years ago, in eS 
rivers entering Cook Straits and in the Nelson District, while 2° 0g 
migratory salmonoid had ever been liberated, so far as is known, north A 
Otago, it was not unnatural to suppose that this might be a harbing® , 
the shoals of American salmon that are expected sometime to reappear 0B 
our coasts, 
