200 Natal Fishes 
Family MULLID. 
Upeneoides tragula, Richards. 
Family SIGANIDA. 
Siganus albopunctatus, Schleg. 
Family GOBIID AE. 
Gobius albopunctatus, Cwv. & Val. 
Gobiosoma diadematum, Riipp. 
Family ATHERINIDA. 
Iso natalensis, sp. nov. 
Depth of body 31 in the length, length of head 42. Snout shorter 
than diameter of eye, which is as long as postorbital part of head. 
Maxillary extending to below anterior } of eye; lower jaw shorter 
than upper. Dorsal IV, 116. Anal I 22. A broad bluish-silvery 
lateral band, margined above with a blackish stripe. 
TEXT-FIG. 3. 
Iso NATALENSIS. 
A single specimen, 52 mm. in total length, collected by Mr. H. W. 
Bell Marley. 
The genus Zso was established for the Japanese Iso flos-maris, Jord. 
& Starks,* which has the depth of body 5 in the length, but is very 
similar in other characters to the species here described. The occur- 
rence of a second species of this curious specialized genus on the coast 
of Natal is of interest. 
* Proc. U.S. Nat. Mus., vol. XXIV, 1901, p. 205, fig. 
