498 CALIFORNIA ACADEMY OF SCIENCES. 4 £26 
middle of pupil, jaws subequal or the lower a little the 
longer; teeth rather strong. No flaps on shoulder gir- 
dle. Cranium with a slight median crest. Interorbital 
ridge not hollowed out; skull not abruptly widened be- 
hind. 
Color olivaceous, side with a very broad jet black lat- 
eral band, three times interrupted by silvery. Caudal 
white with four < shaped bands, growing progressively 
fainter behind. Pectoral mottled gray, with a jet black 
oblique crescent towards its base, surrounding a large 
yellow spot, side of head with four round gray spots sep- 
arated by black, the largest below eye, with a black streak 
before it. First dorsal jet black; second mottled; the 
produced spine with yellowish. Ventrals and anal pale. 
One specimen, 1% inches long, in the Museum of the 
Leland Stanford Jr. University. 
208. Evermannia zosterura (Jordan & Gilbert). Plate 
li. 
Very common on sandy bottoms everywhere about the 
estuary, numerous specimens being dug out of the sand 
by Mr. Williams. It is seldom found much if any below 
the mark of low tide. It is a very handsomely colored 
species, the male being more strikingly marked than any 
other of our Gobies. The species has hitherto been known 
only from a single specimen taken by Dr. Gilbert at Ma- 
zatlan. 
Head 34%; depth 6; dorsal 1V-15; anal 14; eye equals 
snout, 5 in head; pectoral 1%; caudal 1. 
Body compressed, profile convex; snout short, not very 
blunt; eyes high, the maxillary reaching to their posterior 
margin; mouth oblique, jaws equal. First spine of dor- 
sal filamentous, reaching to middle of soft dorsal (male). 
Body entirely naked. 
Body everywhere speckled with dots of dark-brown. 
. 
