APPENDIX C. 
211 
thirty scales between the snout and the spinous dorsal. The two 
anterior dorsal spines are nearly half as long as the head. The 
eighth or ninth,, the twelfth or thirteenth^ the twenty-fourth or 
twenty-fifth scales of the lateral line correspond to the extremity of 
the pectoral and to the origin of the two dorsal fins. The root of 
the pectoral is above the middle of the body ; the ventral is inserted 
midway between the pectoral and spinous dorsal. Dark stripes 
along the series of scales ; generally a blackish spot superiorly at 
the base of the pectoral. 
Valenciennes,, relying upon the authority of Ehrenberg and upon 
the specimens collected by him^ states that^ besides the true M. capita, 
another speeies is found in the Nile closely resembling it^ but dis- 
tinguished by the position of the dorsal fins. The distance be- 
tween the commencement of the first dorsal and that of the second 
is less than in the other species [of Europe]^ for in the latter it is 
equal to the distance between the eommencement of the second 
dorsal and that of the caudal, whilst in the dubahra it is one-fourth 
less. Otherwise the species agree with M. capito.’’ He calls this 
species M, dubahra (Cav. & Vah, Vol. XI., p. 60). Having ex- 
amined our European and African specimens of M. capita with 
regard to the position of their dorsal fins, I found that they are 
intermediate between iff. capita and M. dubahra. The future 
must show whether the dubahra has other characters by which it 
may be distinguished from iff. capita. 
Mugit petherici, Gthr. 
D. 4 I A. yV- l^^f- 45- E. transv. 14. 
This species is similar to iff. capita or iff. dubahra, C., V., from 
14 — 2 
