AEICJS. 387 



rough with pearl-like granules ; occipital process tectiform, broader at 

 base than long, in contact with the interneural shield, which is small 

 and crescentic and studded with granules same as on the skull ; snout 

 broad, rounded, projecting feebly beyond mouth ; eye lateral, oval, 

 twice in length of snout, 6 times in length of head, 3 times in inter- 

 ocular width ; prgemaxillary band of teeth 6 times as long as broad ; 

 palate with two large subtriangular groups of villiform teeth narrowly 

 separated from each other in front ; maxillary barbel f length of head, 

 outer mandibular f, inner mandibular \. Gill-rakers moderately long, 

 12-15 on lower part of anterior arch. Dorsal 1 7, spine f length of 

 head, with granular tubercles anteriorly and small serree posteriorly. 

 Adipose dorsal small, its base § that of rayed dorsal, If times as distant 

 from latter as from caudal. Anal ]7 (12 rays branched). Pectoral 

 spine similar to dorsal. Ventral reaching origin of anal. Caudal 

 deeply notched, with long, pointed lobes. Caudal peduncle twice as 

 lung as deep. Olive-brown above, silvery on the sides, white beneath ; 

 distal half of dorsal, pectoral, ventral, and anal fins blackish. 

 Total length 1150 millim. 



3. AEIUS HEUDELOTI. 



Oflv. & Val. Hift. Poiss. xv. p. 73, pi. ecccxxviii. (1840). 

 Avius parkii, part., G until. Cat. Fish. v. p. 154 (1864). 

 Arias partii, Steind. Notes Leyd. Mus. xv. 1894, p. (31. 



Depth of body 5 to 6 times in total length, length of head 3J to 4 

 times. Head 1| to 1| times as long as broad, the posterior part of its 

 upper surface rough with pearl-like granules ; occipital process tecti- 

 form, as lon«- as broad at base, in contact with the interneural shield, 

 which is small and crescentic and studded with granules same as on the 

 skull ; snout short and broad, projecting very feebly beyond mouth ; 

 eye lateral, oval, 1 to 1-^ times in length of snout, 5 to 6 times in length 

 of head, 2\ to 4 times in interocular width ; pra;maxillary band of teeth 

 short, 4 times as long as broad ; palate with two rather small, widely 

 separated, oval or subtriangular groups of villiform teeth; maxillary 

 barbel as long as or a little shorter than head, outer mandibular \ to | 

 length of head, inner mandibular \ to f. Gill-rakers moderately long, 



2c2 



