134 MUlUENIDiE. 



Gymnoinur.-cna xanthoptorus, Block. I. c. yX. '20. fig. 4 ; Knar, Xo- 



vara, Fische, p. .')88. 

 uiicropterus, Bleek. I. c. p. 115, pi. 20. lig-. 2; Kner, I. c. 



Brownish or brownish g;rey, 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 

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

 amples). 



East-Indian archipelago ; Island of Oualau. 



a. Adult. Old Collection. 



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



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

 tion. — Type of M. microptera. 



(I. Young. Amboyna. From Dr. Blocker's Collection. — Type of 

 G. macrocephalus. 



c. Young. Borneo. 



3. Gymnomursena concolor. 



? Murfenoblenua olivacea, Lad-p. v. p. 052. 



Uropterygius concolor, RiipiJ. N. W. Fische, p. 83, taf. 20. fig. 4. 



Uniform brown. IMaxillary and mandibulary teeth in a double 

 series ; no distinct canine teeth. Eye of moderate size ; postorioi- 

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



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



«. Twenty inches long. Cape York. From Hr. Damel's Collection. 



This example agrees so well with Eiippell's description that I 

 cannot hesitate to identify it with the Eed-Sea species. liiippeU 

 states that there is only one tooth on tlie " 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 individual discrepancies. 



4. Gymnomursena fusca. 



Peters, Monatsher. Ak. Wiss. BtrUn, 18G0, p. 524. 



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

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

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



Amboyna. 



^. Gape very ividc ; snout wry short : Channomurffina. 

 5. Gymnomursena vittata. 



Parra, p. 60, lam. .30. fig. 3. 



Ichthyopliis vittatiis, Richards. Voy. Su/ph. Fish. p. 114, pi. 53. figs. 



7-9. 

 Netta.stoma (Channomursena) vittata, Richards. Voy. Erch. i)- Terr. 



Fish. p. 00 ; Kaiqt, Apod. p. 97. 



* This, ir eoiTect, would be a very singular oharaeler, inaHinuch as tlie teeth 

 of tlje inner series in all the true Mura;noids are the longer, at least in the 

 upper jaw. 



