16 Mr. J. R. Norman— -J Revision 



middle of anal. Anal 74-78 (82) ; origin nearer base of 

 caudal than tip of lower jaw ; Jength of base about twice in 

 length of body. Pectorals a little shorter than head. 



Coast of Guiana. 



Two specimens, 75 and 98 mm. in total length. 



2. Odontognathus panamensis. 



Pristif/aster (Odontognathus) panamensis, Steind. SB. Ak. Wien, Ixxiv. 

 1876, p. 24. 



Depth of body nearly 4 in the length, length of head 5^. 

 Ventral profile convex ; dorsal profile of head concave. 

 Snout equal to diameter of eye, which is 3f in length of 

 head ; maxillary extending to beyond gill-opening ; lower 

 jaw projecting. Ridges on head diverge posteriorly. 54- 

 56 scales in a longitudinal series; ventral scutes 13 + 16. 

 Dorsal 12 ; twice as far from gill-opening as base of caudal. 

 Anal Q7, Pectoral longer than head. 



Total length 200 mm. 



Panama. 



5. Raconda, Gray, 1831. 



Zool. Miscell. p. 9. 



Apteryyia, (iiay, 111. Ind. Zool., ii. pi. xcii. fig. 1 (1835). 



Pristigaster (part.), Gunth. Cat. Fish. vii. p. 460 (1868). 



Differs from Odontognathus in the absence of the dorsal 

 fin, in addition to the pelvics. Maxillary tapering ; extending 

 as far as gill-opening in adults. Anal fin very long (83- 

 87 rays) ; origin in front of that of dorsal. Scales without 

 transverse grooves. 



A single species from tropical Indo-Pacific. 



Raconda russelliana. 



Raconda inisselliana, Gray, Zool. Miscell. p. 9 (1831) ; Cantor, J. As. 

 Soc. Bengal, xviii. 1850, p. 1274; Bleek. Atl. Ichth. vi. p. 124 

 (1872); Day, Fish. India, p. 646, pi. clxiii. fig. 4 (1878); Weber & 

 Beaufort, Fish. Indo-Austral. Archipelago, ii. p. 98, fig. 33 (1913). 



Apteryyia ra7ncarata, Gray, 111. Ind. Zool. pi. xcii. fig. 1 (1835). 



Apteryyia hamiltonii, Cuv. & Val. Hist. Nat. Poiss. xx. p. 333 (1847). 



Pristigaster russellianus, Giinth. Cat. Fish. vii. p. 462 (1868). 



Depth of body 3 J to 4 in the length, length of head 5| to 

 6. Ventral profile more convex than dorsal, especially 

 convex anteriorly ; dorsal profile of head concave. Snout 

 shorter than diameter of eye, which is 3 to 3^ in length of 

 head ; maxillary extending to below middle of eye in a 

 specimen of 180 mm., to below anterior part of eye in smaller 

 specimens ; lower jaw very oblique, projecting, liidges on 



