600 REVIEW OF NORTH AMERICAN GOBIID^. 



aa. Scales GO to 70, crowded anteriorly, about 30 scales before the dorsal oa nape; 

 21 scales between second dorsal and anal; head broader than high; body 

 compressed jiosteriorly, rather depressed anteriorly ; greatest depth 5^ in length ; 

 head, 3J in length ; eye small, less than interorbital (in adult), 3 times in 

 snout (twice in young), and about 7 times in length of head ; distance from 

 eye to mouth 3^ in head, the i)reorbital being much enlarged ; mouth large, 

 horizontal; maxillary extending to below anterior part of orbit; lower jaw 

 included ; teeth of the upper jaw in two series, those in anterior series much en- 

 larged, recurved; those of lower jaw in a narrow band, outer series scarcely 

 enlarged ; inner edge of shoulder-girdle with 2 or 3 rather long papillae. Body 

 covered with ctenoid scales, much reduced in size anteriorly ; nape closely scaled, 

 breast scaly, head naked ; dorsal fins less than hight of body ; dorsal spines 

 scarcely filamentous, not as high as the soft rays ; caudal rounded, shorter 

 than head; ventrals very broad and short, 1^ to If in head; the rays very 

 much branched. Olivaceous, a series of irregular, roundish blotches along 

 middle of sides ; narrow dark streaks radiating from eye ; a blackish streak 

 running across upper margin of opercle and extending obliquely across base 

 of upper pectoral rays ; belly white ; dorsal and caudal more or less distinctly 

 barred with wavy blackish lines. D. VI, 11, A. II. Scales, about 65. 



Taiasica, 37. 



ace. [Scales 7(5 to 82 ; 24 scales between second dorsal and anal ; head as broad as 

 high; depth of body 6f in length ; head 4; head flat above, snout elongate, 

 upper profile oblique ; eye, ^ of head, equals interorbital area (in adult) ; mouth 

 horizontal ; lower jaw included ; maxillary reaching to below anterior margin 

 of eye ; teeth of the outer series enlarged ; canine teeth, none ; scales ctenoid, 

 those on nape and anterior part of ""body verj^ small ; head naked; dorsal fins 

 lower than body, none of the spines produced ; caudal rounded, 7 in length of 

 body. Yellowish-olive ; back and sides reticulated with blackish ; head, dorsal, 

 caudal, and pectoral fins dotted with blackish, the spots forming streaks on 

 second dorsal ; six cross series of dots on the caudal ; an irregular small blackish 

 spot on the upper part of the root of pectoral. Dorsal, VI-U. Anal, 11. Scales 

 about 80.] (Giinther) Mexicanus, 38. 



36. Chonophorus flavus. 



Gohius flavua Guv. & Val., Hist. Nat. Poiss. xii, 60, 1837 (Surinam) ; Giinther, 

 Cat. Fish. Brit. Mns. viii, 13 (copied). 



Habitat. — Surinam. 



An examiuatioii of the type of Gob ius flavus Cuv. & Yal. has proven 

 it to be a Chonophorus^ having the dermal flaps on the shoulder girdle 

 as in Ch. taiasica^ to which it is closely related. 



37. Chonophorus taiasica. 



^jftore (//tacMMarcgrave, Hist. Brasil., 1646, 166 (Brazil). 



GoUus taiasica Litchteustein, "Berl. Abhandl. 1822, 273" (not Tajasica Marc- 

 grave). 



Chonephorus taiasica Jordan, Proe. U. S. Nat. Mus. 1886, 49 (Havana, Cuba). 



GoMm hanana Cavier & Valenciennes, Hist. Nat. Poiss., xii, 103, 1837 (St. 

 Domingo); Giinther, Cat. Fish. Brit. Mus. iii, 59, 1861 (Caribbean Sea j 

 Antilles; West Indies); Steindachner, Ichth. Not. vi, 45, 1877 (Surinam) ; 

 Cope, Ichthyology Lesser Antilles, 473, 1871 (St. Domingo) ; Jordan & Gil- 

 bert, Proc. U. S. Nat. Mus. 1882, 368 (Cape San Lucas) ; Jordan & Gilbert, 

 Proc. U. S. Nat. Mus. 1882, 379 (San Jos6) ; Jordan, Catalogue Fish. North 

 America, 105, 1885 (name only). 



