ADDENDA. 301 



The fifth dorsal spine is the tallest, but the third, fourth, sixth, and seventh are scarcely 

 perceptibly shorter, the eleventh is as high as the second, and the twelfth is taller, being equal 

 to the tenth, but shorter than the third. The anal spines are very robust, they are deeply 

 grooved behind, and also furrowed in front, seeming as if they were formed by the consolida- 

 tion of two or three spines, particularly the second one, which is highest and stoutest, and is 

 enlarged downwards by the thin expansion of one of the edges. 



The scales are obtusely oval, with crenatures on their basal margin corresponding with from 

 fourteen to twenty furrows that converge towards the exposed edge of the scale, which, with a 

 portion of the adjoining surface, appears rough under the microscope, but is not grooved or 

 toothed. A scale on the anterior part of the body is rather more than a quarter of an inch 

 long, and thirteen of them, when in situ, are included within a linear inch. There are forty- 

 seven on the lateral line, and thirty-four in a vertical row where the body is highest. The 

 colours have been mostly destroyed by the spirit in which the specimen is kept, but, exclusive 

 of the spots on the pectoral already noticed, various large marks on the flanks are discernible, 

 and there are traces of a large spot on the tips of the soft rays of the dorsal. 



Dimensions. 

 Inches. Lines. 



Length from tip of upper lip to end of caudal 7 Length from tip of upper lip to begin, of dorsal 2 



,, ., beginning of ditto . . 5 7 „ „ nape 



„ „ end of dorsal ... 4 11 „ „ centre of orbit 



„ „ end of anal ... 4 9^ Diameter of orbit .... 



,, „ beginning of ditto . . 4 Length of intermaxillary 



„ ., anus .... 3 7 ,, labial .... 



„ „ tip of humeral spine . 2 4 Breadth of lower end of ditto . 



„ „ gill-cover .... 2 3^ Length of fourth dorsal spine . 



„ „ tip of opercular spine .22 „ second anal spine . 



Inches. 



Lines. 



al 2 



1 



1 



6* 







9 







6 







9 



1 



1 







4 







9 



1 



2 



Page 111, after Abramis Smithii. 



[128.] 2. Cyprinus (Abramis) balteatus. (Rich.) Red-sided 



Bream. 



This pretty little bream, which is an inhabitant of the Columbia, was sent to me 

 by Dr. Gairdner. 



DESCRIPTION. 



Colour. — " Back of head and body mountain-green, with iridescent tints of yellow and 

 blue. Belly silvery-white. — A bright gold-yellow band behind the eye on the margin of 

 the preoperculum, and a broad scarlet-red stripe beneath the lateral line, extending from 

 the gill-opening to the anal. Fins of an uniform greenish-grey colour without brilliancy." 

 (Gairdner.) 



Form much compressed, the depth of the body being equal to one-fourth of the distance 

 between the tip of the snout and the caudal fork, while its thickness is only equal to a tenth 



