498 CALIFORNIA ACADEMY OF SCIENCES. 



middle of pupil, jaws subequal or the lower a litde 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 silver}^. 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, lys inches long, in the Museum of the 

 Leland Stanford Jr. University. 



208. Evermannia zosterura (Jordan & Gilbert). Plate 

 h. 



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 2}i ; depth 6; dorsal IV-15 ; anal 14; eye equals 

 snout, 5 in head; pectoral 1% ; caudal i^ . 



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. 



