FRESH-WATER FISHES OF SIAM, OR THAILAND 



535 



AULOPAREIA JANETAE, new species 



Figure 105 



Descri'ption. — Depth 4.5 in standard length; depth of caudal pe- 

 duncle 1.8 in its length and 2 in head; head broad, 3.6 in standard 

 length ; snout blunt, 3.8 in head ; eye extending to dorsal profile, small, 

 about 5.8 in head, 1.5 in snout, and 1.2 in the flat interorbital space; 

 mouth oblique, maxillary extending beyond middle of eye, 2.5 in head ; 

 teeth in outer row of upper jaw caniniform, about 4 on each side; teeth 

 in outer row of lower jaw enlarged in front, the last tooth on eacli 

 side a large, recurved canine; tongue thick, fleshy, its tip rounded; 

 gill openings extending forward for a moderate distance, the isthmus 

 broad ; posterior nostril close to eye. 



Squamation : Body covered with large ctenoid scales becoming cy- 

 cloid forward, about 30 in longitudinal series, 10 in transverse series, 

 20 predorsal, and 12 circumpeduncular ; breast and pectoral base scaly ; 

 predorsal scales extending through interorbital space nearly to a line 

 connecting anterior margin of eyes; opercle, preopercle, and cheek 

 fully covered with large cycloid scales, those on preopercle and cheek 

 in 6 rows traversed by 4 horizontal grooves. 



Figure 105. — Aulopareia janetae, new species: Type (U.S.N.M. No. 119548). Drawn 



by Mrs. Alice C. Mullen. 



Fins: Dorsal rays VI-I, 10; first dorsal fin low, rays 0.5 head; 

 branched rays increasing in length from before backward, the last rays 

 about 1.5 in head ; caudal fin less than head, obtusely pointed ; anal rays 

 1, 9, similar to second dorsal ; ventrals shorter than head, f renum deeply 

 emarginate ; pectorals pointed, about length of head, with 19 rays, of 

 which the longer central rays reach beyond ventrals. 



Coloration (in preservative) : Body and head pale, unmarked; all 

 fins more or less uniform reddish brown ; a blackish spot about size of 

 eye at upper base of caudal fin, with a pale area posteriorly. 



Type and paratype. — The type (U.S.N.M. No. 119548), a specimen 

 7.6 cm. long, was taken July 22, 1928, in Nakon Bay, off the east coast 

 of Peninsular Thailand. A paratype and only other known specimen 



