134 .Mini^NIDJE. 



GymnomuroenA xanthoptenis, Bleik. J. c. pi. 20. fig. 4 ; K/iet-, Xo- 



vara, Fische, p. 388. 

 micropterus, Bleek. I. c. p. llo, pi. 20. fig. 2; Kner, I. c. 



Brownish or brownish grey, finely marbled with darker. Teeth 

 of the jaws in narrow bands, cardiform, those between the maxillary 

 bands being somewhat the largest. Eye small ; posterior nostrils 

 with a raised border (more conspicuous in old than in young ex- 

 amples). 



East-Indian archipelago ; Island of Oualan. 



a. Adult. Old CoUection. 



h. Adult. East-Indian archipelago. From Dr. Bleeker's Collection, 

 f. Young. East-Indian archipelago. From Dr. Blocker's Collec- 

 tion. — Type of M. mkroptera. 



d. Young. Amboyna. From Dr. Bleeker's CoUection. — Type of 



G. macrocepJudus. 



e. Young. Borneo. 



3. GymnomurEena concolor. 



? Mursenoblenna olivacea, Lacip. v. p. G52. 



Uropterygius concolor, Riipp. N, TV. Fische, p. 83, taf. 20. fig. 4. 



Uniform brown, ilaxillary and mandibulary teeth in a double 

 scries ; no distinct canine teeth. Eye of moderate size ; posterior 

 nostrils not tubular. (Tail but little longer than the body.) 



Eed Sea ; Cape York (Australia) ; ? Straits of Magellan. 



rt. Twenty inches long. Cape York. From Hr. Diimel's Collection. 



This example agrees so well ndth Eiippell's description that 1 

 cannot hesitate to identify it with the Ked-Sea species. Riippoll 

 states that there is only one tooth on the "palate," whilst our ex- 

 ample has the usual series of vomerine teeth. It is well known 

 that no value is to be attached to such indi\"idual discrepancies. 



4. Gymnomursena fusca. 

 Peters, Mwmtsber. Ak. Wiss. Berlin, 1866, p. 624. 

 Uniform brown. Teeth of the jaws biserial (those of the inner 

 series much shorter than those of the outer series*). Tail one-haK 

 longer than the body. Posterior nostrils not tubular. (Ptrs.) 

 Amboyna. 



j3. Gape very wide ; snmd very short : Channomursena. 

 5. Gymnomursena vittata. 



Parra, p. 66, lam. 30. fig. 3. 



Ichthyophis \ittatus, Richards. Voy, Stdph. Fish. p. 114, pi. 53. tigs. 



7-9. 

 Nettastoma (Cbannomurijena) vittata, Richards. Vay. Ereb. i^ Terr. 



Fish. p. 96 ; Kaiip, Apod. p. 97. 



* This, if correct, would be a very singular character, inasmuch aa the tcelli 

 of tlie inner series in all the true Muroenoids are the longer, at leaSt in the 

 lijjpcr jaw. 



