222 BULLETIN 180, UNITED STATES NATIONAL MUSEUM 



Seale and others in the National Museum has revealed some important 

 characters heretofore completely overlooked. Thus major changes 

 have resulted in the generic allocation of several species. The char- 

 acters on which these changes depend are given in the rather detailed 

 keys. Special reference should be made to Stiphodon and Vailima; 

 Chlamydes laticeps Jenkins and Bathygohius cotticeps (Steindach- 

 ner) ; Eviota pruinosa Jordan and Seale and Pandaka; Rhinogobius 

 m/ascarum Jordan and Seale and Glossogohius. 



KEY TO THE FAMILIES OF SOUTH PACIFIC GOBIOIDEA 



la. Last or inner rays of pelvic fins connected by a membrane for more than 

 halfway out toward their tips ; usually a basal membrane is present 

 though not always ; pelvics often cup-shaped Gobiidae 



1&. Last or inner rays separated to their base and not connected by a mem- 

 brane except at their bases; no basal membrane present and pelvics 

 never cup-shaped Eleotridae 



Family GOBIIDAE 



KEY TO THE GENERA AND SPECIES OF GOBIIDAE, OR GOBIES WITH UNITED 

 PELVIC FINS, FROM THE PHOENIX AND SAMOAN ISLANDS. BASED ON SPECI- 

 MENS IN THE NATIONAL MUSEUM 



la. Dorsal spines VI, second dorsal with about I, 7 to I, 14 rays; eyes not 

 prominent above dorsal profile ; no teeth on vomer or palatines. 

 2a. Body entirely naked, no scales present anywhere, not even on posterior part 

 of body ; gill openings restricted mostly to opposite pectoral fin base. 

 3a. Gill opening extends a trifle below lower ray of pectoral fin ; pectoral 

 fiai rays 14 or 15 ; dorsal rays VI — I, 12 or I, 13 ; anal I, 8 ; lower 

 jaw a trifle shorter than upper, gape almost in line with midaxis of 

 body ; teeth in a single row on each jaw ; tongue rounded ; caudal fin 

 rounded ; depth 5.5 ; head 4.5 ; snout rounded ; body cylindrical. 



Kelloggella cardinalis Jordan and Seale 



3&. Gill opening in front of, and shorter than base of pectoral fin ; pectoral 



fin rays 18 or 19; dorsal rays VI — I, 10; anal I, 8 or I, 9; lower 



jaw equal in length to upper jaw ; gape longitudinal ; teeth villiform 



in upper jaw in one row ; lower jaw with an outer row of villiform 



teeth then an inner row with some canines, usually two pair rather 



strong near symphysis; caudal rounded; tongue rounded; depth 2.5; 



head 3% ; body compressed (GoModon). 



4a. Opercle at upper posterior angle with a black spot, and usually in 



front and behind this spot a vertical line blue in life pale wnth 



black edges in alcohol ; two more such lines usually visible below 



eye ; posterior edge of spiny dorsal black ; first rays of dorsal fin 



longest, the longest ray IVi in head; anal rays 1,9; pectoral 18. 



Gobiodon citrinus (Riippell) 



4b. No black spot or other markings; spiny dorsal 2'/i in head, posterior 



rays as long as anterior rays, but much shorter than soft dorsal 



rays; anal rays 1, 8, pectoral 10 Gobiodon rivulatus (Riippell) 



2b. Body scaly, at least behind head. 



5a. Head covered with hairlike dermal cirri, most numerous on underside 

 of head and on isthmus ; gill opening mostly restricted to in front of 

 pectoral fin base, opening only a trifle below lowest pectoral ray; 



