Jordan and I^vermann. — Fishes of JVorth America. 391 



canines in front, the posterior teeth small, uniserial; posterior nostril 

 nearer eye than anterior one. Insertion of dorsal li- lengths of the head 

 before vent, much nearer vent than gill opening. Tail longer than rest 

 of body by the length of the jaw. Head 3 in trunk ; gape 21 in head; 

 eye 2 in snout. Color much as in Lycodcntis mordax, dark brown with 

 irregular diS'ase yellowish sj^ots smaller than eye, which run together 

 into irregular marblings ; gill ojiening small, slightly dark ; tins nearly 

 plain ; belly without dark cross lines ; teeth entire. Two specimens 

 known, the one (No. 6673, U. S. N. M.), said to be from San Diego, the 

 type from Rio Grande in Costa Rica. It is probably not a fresh water 

 species, {aqua-ditlcis, of the fresh water.) 



Murxna iiqiiit:-(h(Icis, Coi'E, U. S. Geol. Surv. Montana, etc., 474, 1871, (1872), Rio Grande, near 



San Jose', Costa Rica. 

 Gymnothorax aqttia-dulcis, Jordan & Davis, J. c, 598. 



641. RABULA MARMOUEA (Valenciennes). 



Dorsal inserted over or slightly behind gill opening. Teeth in upper 

 jaw uniserial; (dorsal fin in figure beginning a short distance behind 

 gill opening). Color yellowish brown with dark reticulations, the longi- 

 tudinal branching streaks studded with oblong yellow spots ; spots on 

 belly large, those on throat confluent ; dorsal and anal yellowish brown 

 with darker clouds; teeth all uniserial. (Valenciennes.) Galapagos 

 Islands; a doubtful species, perhaps based on Murama lentigUiosa, or 

 Bahula aquw-dulds. (viarmoreus, marbled.) 



Murmnophis marmoreiis, Valenciennes, Voy. Vfniis, Zoiil., 347, jil. 10, fig. 1, 18.55, Galapagos. 

 Gymnothorax mannorens, Jordan & Davis, I. c, 598. 



642. RABULA PANAMENSIS (Steindaohner). 



Teeth of upper jaw bieerial ; jaws capable of being completelj' closed ; 

 some of the teeth serrate; outer teeth of jaws thickish, bent abruptly 

 backward at tip, the posterior margin below distinctly serrate ; lower jaw 

 strongly bent upward towards the tip, the largest teeth on the bent 

 anterior partof the jaws ; teeth of the inner row above long, slender, and 

 movable, twice as large as the outer teeth ; teeth of inner row of lower jaw 

 slender (all lost in specimen examined) ; vomerine teeth small, uniserial, 

 blunt (slender and sharp according to Steindachner) ; head small, bluntish, 

 7i in body ; tail a little longer than rest of body ; gape 2J- in head ; eyelj^ 

 in snout ; dorsal beginning over gill opening. Color dark bluish black, 

 brownish on tail ; pores on jaws whitish. Pacific Coast of Central 

 America ; a small species, not common ; our specimen from Panama. 



Muriena panamensin, Steindaciineu, Ichth. Beit., v, 19, 187G, Panama. 

 Sidera jHiiiameuMs, Jordan it Gilbert, Proc. U. S. Nat. Mus. , 1882, 623. 

 Gymuothonij- 2>iinamcusis, Jordan & Davis, I. c, 598. 



643. RABULA LONGICAUDA (Peters). 



Teeth of upper jaw biserial ; jaws withstraightish commissure and hence 

 completely closing ; teeth all entire. Tail about half longer than rest of 

 body ; dorsal beginning a little behind gill opening ; vomerine teeth slen- 

 der and rather long; teeth in two series in each jaw; those of the inner 

 series largest and movable; anterior canines enlarged; outer teeth of 



