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BULLETIN OF THE BUREAU OF FISHERIES 



viduals in my collection longer than 200 millimeters, and these have, on the average, 

 a proportionally smaller head and eye than the rest. L/H for these specimens is 

 3.8-4, as compared with (3.5) 3.6-3.8 (4.1) for the rest; and H/E is (3.7) 3.9-4 

 (4.3), as compared with (3.3) 3.6-3.8 (4) for the others. See also Table 51, where are 

 compared in detail five specimens longer than 200 millimeters and five smaller. 



comparisons 2 



Kiyi usually can be confused only with the juveniles of other Leucich thy s, except 

 Tioyi, as kiyis of greater length than 20 centimeters are rarely found. For the dis- 

 tinguishing characters between Myi and johannse, see page 358; between Tciyi and 

 alpense, see page 371; between Myi and zenithicus, see page 396; and between Tciyi 

 and nigripinnis, see page 423. 



From Tioyi, Myi is distinguished by its more ovate body shape and more acutely 

 triangular head, as seen from the side; by its fewer gill rakers on the first branchial 

 arch, more lateral-line scales, and longer paired fins. The characters that can be 

 expressed numerically are compared for the two species below: 



Gill rakers on the first branchial arch: 



kiyi, (34) 36-40 (44), with 12 per cent more than 40. 



hoyi, (37) 40-43 (47), with 71 per cent more than 40. 

 Lateral-line scales: 



kiyi, (70) 75-83 (89), with 71 per cent more than 76. 



hoyi, (63) 68-76 (84), with 12 per cent more than 76. 

 Pv/P: 



kiyi, (1.1) 1.4-1.7 (1.9), with 15 per cent more than 1.6. 

 hoyi, (1.4) 1.7-1.9 (2.2), with 85 per cent more than 1.6. 

 Av/V: 



kiyi, (0.9) 1-1.2 (1.4), with 34 per cent more than 1.1. 

 hoyi, (1) 1.2-1.4 (1.7), with 90 per cent more than 1.1. 



Kiyi can be confused only with small artedi, as it does not grow large and usu- 

 ally can be distinguished from these at once by the shape of the body, which in 

 Myi is more ovate in outline, as seen from the side; by the many fewer gill rakers 

 on the first branchial arch, much longer paired fins, and larger head and eye. The 

 two species are compared below in those characters that can be expressed numerically: 



Gill rakers on the first branchial arch: 



kiyi, (34) 36-40 (44), with 12 per cent more than 40. 



artedi, (40) 45-50 (53) , with 99 per cent more than 40. 

 L/H: 



kiyi, (3.5) 3.6-3.9 (4.1). 



artedi, (4) 4.2-4.5 (4.8), with 89 per cent more than 4.1. 

 H/E: 



kiyi, (3.3) 3.6-3.8 (4.3), with 21 per cent more than 3.8. 

 artedi, (3.6) 3.8-4 (4.4), with 66 per cent more than 3.8. 

 Pv/P: 



kiyi, (1.1) 1.4-1.7 (1.9). 



artedi, (1.7) 1.9-2.1 (2.3), with 68 per cent more than 1.9. 

 Av/V: 



kiyi, (0.9) 1-1.2 (1.4). 



artedi, (1.3) 1.6-1.7 (1.9), with 97 per cent more than 1.4. 



8 Figures in this section are given for all specimens collected except for the proportions of artedi. These involve only those 

 specimens less than 225 millimeters in length. 



