246 BULLETIN 180, UNITED STATES NATIONAL MUSEUM 



scales in the transverse row ; color brownish with an irregular 

 band below each dorsal fin and one posteriorly on caudal 



peduncle Mucogobius sclateri (Steindaehner) 



76. Gill membranes extending far forward and narrowly attached to 

 the isthmus. 

 8a. Body not barred ; fifth pelvic ray not rudimentary ; inter- 

 orbital deeply concave, with a bony ridge around dorsal 

 rim of orbit ; top of head in front of dorsal fin scaled ; tongue 

 truncate to bilobed ; depth in standard length 4.6 ; snout in 

 eye 1.55; snout in head 4.0; eye in maxillaries 1.13; eye in 

 head 2.6; dorsal VI-I, 8; anal I, 8; pectoral 17; scales 24; 

 transverse row scales 7; no vertical color bars; margins of 

 scales pigmented with brown ; centers of scales pale ; three 

 weak bars across upper part of eye. 



Trimma caesiura Jordan and Scale 

 86. Eight bars on head and body; fifth pelvic ray rudimentary; 

 interorbital space concave with a bony ridge (less developed 

 than in T. caesiura) around dorsal rim of orbit; area in front 

 of dorsal fin naked ; tongue rounded ; depth 4^,4 ; eight blackish 

 bars or saddles, one under eye, next across rear margin of 

 orbits, two in front of dorsal, three under dorsals, and the 

 eighth a saddle on upper edge of caudal peduncle; dorsal 

 rays "VI-I, 9 or I, 10; anal I, 8 or I, 9; pectoral about 17; 

 scales 27, 8 in transverse row ; cheeks, opercles and nape 



naked ; breast scaly Trimma eviotops, new species 



6&. Scale rows more numerous than 45, or body appears to be naked 



at least anteriorly. 



9a. Teeth caninelike and strong, arranged in a single row in upper 



jaw and in two rows anteriorly in lower jaw but one row 



posteriorly ; gill membranes broadly joined to isthmus ; midline 



of back in front of dorsals naked, sides of nape scaled but 



halfway to eyes ; cheeks and opercles naked ; breast scaly ; 



tongue rounded ; greatest depth 5 to SVj in standard length and 



head 3^^ ; scale rows 80 to 87; about 25 in the transverse row; 



dorsal rays VI-I, 12; anal I, 12; pectoral 18; eye 2 in snout 



and 2% in maxillaries, the latter rather long, extending to 



below front of eye; color pale, the tip of the spiny dorsal 



black; a streak or row of faint spots from lower level of eye 



and a similar color mark aci'oss cheeks; a small median pore 



between eyes in interorbital space ; caudal fin somewhat pointed. 



Valenciennea violif era Jordan and Seale 



96. Teeth villiform, in a narrow band on both jaws. 



10a. Gill membranes extend far forward and narrowly joined to 

 isthmus with a narrow free fold across it ; lower jaw 

 longest, mouth oblique, so that lower jaw enters dorsal 

 profile ; edge of shoulder girdle with a cartilaginous pro- 

 jection covered by operculum ; depth about QV-y ; cheeks and 

 opercles naked; breast scaly; sides of, and nape partly 

 scaled, about two-thirds way to eyes in front of dorsal 

 fin; maxillary reaches to under front of eye; dorsal rays 

 VI-I, 12 ; anal I, 11 ; pectoral 15 or 16 ; scale rows 50 ; 

 about 18 in front of dorsal. (Probably this species be- 

 longs in a new genus.) 



Hetereleotris clara Jordan and Seale 



