582 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



from the origin of the spiny dorsal fin to the lateral-line-scale row 

 and below the lateral line upward in an anteriorly oblique row from 

 the origin of the anal fin to the lateral line. In these two counts, the 

 lateral-line-scale row is not included. The total number of gill rakers 

 recorded includes all rudiments and developed rakers on the first 

 right arch. In some species it is important to tabulate sepa- 

 rately the number of rudiments from the developed rakers. In these 

 cases, the number of rudiments is recorded preceding the number of 

 developed rakers on the upper limb and separated by a comma. On 

 the lower limb the rudiment count follows the developed-raker count. 

 The raker at the angle of the arch is preceded and followed by a plus 

 sign and thus distinguished from those on the limbs (e. g., 2,5 + 1 + 16,3 

 or 7+1 + 19). All measurements of the length of a fish refer to the 

 standard length. 



A REVIEW OF THE GENUS ARCHAMIA 

 Genus ARCHAMIA Gill 



Archamia Gill, 1864, p. 81. (Orthotype, Apogon lleekeri Gilnther, 1859 = 

 Apogon f Meatus Cantor, 1850, or Apogon lineolatus Ciivier and Valenciennes, 



1828.) 



A useful key to the genera of the apogonid fishes was presented by 

 Schultz (1940, pp. 404-408). The significant characters referred to 

 by Schultz for Archamia, the number of anal fin rays and dentition 

 of the jaws, show considerable overlap with certain groups of species 

 of Apogon. My recent studies indicate that Archamia is most closely 

 related to the genus Apogon. In view of the many species of Apogon 

 and the lack of a comprehensive understanding of this genus, it is 

 probably best to retain Archamia until a thorough study of Apogon 

 has been completed. Certainly there are greater differences between 

 various groups of species of the genus Apogon than exist between 

 species of these two genera. I hesitate to make generic changes with- 

 out a more comprehensive knowledge of the species of this family 

 than I have at present. Archamia may be distinguished from Apogon 

 by a combination of characters : In Archamia, anal rays II, 12 to 18 

 (anal fin rays II, 12 to 13 in Apogon gracilis Bleeker and Apogon 

 mentalis Evermann and Scale) ; spines in spinous dorsal VI ; vomer 

 and palatines with villif orm teeth ; anterior margin of preopercle not 

 serrated; posterior margin of preopercle serrated; total number of 

 gill rakers 19 to 24; lateral line complete; caudal fin emarginate to 

 moderately forked ; villif orm teeth on vomer and palatines in a single 

 row; villiform teeth of upper jaw in a narrow band, those of lower 

 jaw in a narrow band anteriorly, becoming a single row posteriorly 

 (this type of dentition is also characteristic of the Apogon ha7idanensis 

 gi'oup). 



