2248 Bulletin 4.7, United States National Museum. 



820. EUCYCLOGOBIUS, Gill. 



Eucyclogobius, GILL, Proc. Ac. Nat. Sci. PhUa. 1862, 279 (newberryi). 



This genus is allied to Lepidogobius, differing chiefly in the naked head 

 and short, chubby body ; shoulder girdle with a few dermal flaps ; opercle 

 adnate to shoulder girdle from the angle upward; dorsal spines 6 or 7 ; 

 soft dorsal short; scales all cycloid; cranium depressed behind the parie- 

 tal region, somewhat excavated, the supraoccipital crest rather high, not 

 extending so far forward as the orbit. Species small, in fresh or brackish 

 waters of California, (sv, well; KvnXos, circle (cycloid); GoUus.) 



2580. ECCYCLOGOBIUS NEWBERRYI (Girard). 



Head 3| to 3; depth 4-f to 5}. D. VI or VLP-11; A. 10 or 11 (8 in one 

 specimen, perhaps abnormal) ; scales about 60 to 70, too irregular for exact 

 counting. Body moderately elongate, somewhat compressed, tapering 

 posteriorly ; head rounded above, its width 2*- in its length ; mouth large, 

 oblique, the maxillary reaching to or beyond posterior margin of orbit, 

 2 to 2 in head; interorbital space wide, 4 to 4 in head; snout bluntish, 

 broad, a little longer than interorbital width ; eye small, 5 in head ; teeth 

 present on both jaws, slender, canine-like, arranged in series, the outer 

 row enlarged; caudal peduncle 3 to 3 in head; gill slit about 2| in head, 

 its upper edge opposite or slightly above uppermost ray of pectoral; 

 scales minute, cycloid, inconspicuous, wanting on head, nape, and fins; 

 shoulder girdle with 2 or 3 small dermal flaps; dorsals separated by a 

 narrow space; dorsal spines very slender; base of spinous dorsal 2 

 to 2f in head; anal similar to soft dorsal, its base about 1 in head; 

 caudal subtruncate, 1J to 1| in head; ventrals inserted under or slightly 

 behind lower edge of base of pectorals, If to 2 in head; pectorals 

 1 to 1| in head. Dark olivaceous, mottled with darker ; head with some 

 dusky markings; the sides and back with irregular dark markings as 

 in species of Etheostominw; dorsals distinctly mottled; the first 3 or 4 

 dorsal spines margined with paler ; caudal with faint, broad, wavy cross 

 bars, a faint spot at its base; anal dusky; ventrals yellowish, dusky in 

 males; pectorals plain. Length about 2 inches. Streams of California, 

 in small clear brooks near the sea ; locally common in San Luis Obispo 

 Creek, where the specimens here described were taken; probably con- 

 fined to fresh waters. (Named for Dr. John Strong Newberry of Columbia 

 College, then also on the U. S. Geological Survey.) 



Gobius newberryi, GIRARD, Proc. Ac. Nat. Sci. Phila. 1856, 136, Tomales Bay (Coll. E. Sam- 

 uels) ; GIRARD, Jour. Bost. Soc. Nat. Hiat. 1857, 530, pi. 25, figs. 5 to 8 ; GIRARD, Pac. K. 

 K. Surv., x, 128, 1858. 



Lepidogobius newberryi, JORDAN & GILBERT, Synopsis, 637, 1883 ; JORDAN & EIGENMANN, 

 I. c., 503. 



* Of the nine specimens examined from San Luis Obispo Creek, five have 7 dorsal 

 spines and the other four 6. Girard gives the fin rays as D. VIII-13 ; A. 12 ; hut we have 

 seen no specimens either with 8 spines or 13 rays/ Six specimens from Wadell Creek, 

 Santa Cruz County, California, show the following fin variation : D. VI in 4; IX VII in 1; 

 D. V (?) in 1 ; D. rays 10 in 4 ; D. rays 9 in 2; A. 10 in 2 ; A. 8 in 1 ; A. 9 in 3. 



