400 



BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



GLYPTOTHORAX LAMPRIS Fowler 



OlyptotJiorax Inmpris Fowler, 1934a, p. 91, figs. 34-36 (Chieugmai). 



This species, known from a single specimen 5.5 cm. long, is distin- 

 guished from other species "wholly by its color diilerences. 



GLYPTOTHORAX CALLOPTERUS. new speciea 

 FlGTJKE 87 



Description. — Body rather strongly compressed, its greatest depth 

 contained 3.8 times in standard length ; length of caudal peduncle 1.75 

 times its'least depth and 1.6 times in length of head; head moderately 

 depressed, its length contained 3.4 times in standard length and 1.25 

 times its width ; a well-marked median depression on top of head ex- 

 tending from nostrils to behind eyes; eye contained over 10 times in 

 length of head, 4.5 times in snout, and 3.3 times in interorbital space ; 

 nasal barbel extending halfway to eye, maxillary barbel reaching to 

 end of first fourth of pectoral spine, mandibular barbel reaching base 

 of pectoral spine, mental barbel more than half length of mandibular 

 and reaching beyond gill opening ; thoracic adhesive apparatus as long 

 as head less snout, its width 0.8 its length ; occipital process about 2.5 

 times as long as broad at its base ; body, head, and adipose fin thickly 

 covered with minute tubercles. 



Figure 87. — Glyptothorax callopter us, new species: Type (U.S.N.M. No. 109820). 



by Miss Jane Roller. 



Drawn 



Fins : Origin of dorsal fin midway between tip of snout and middle 

 of base of adipose fin ; dorsal rays I, 6, the rather stout spine 0.5 head, 

 longest branched ray 1.8 times in head and 1.5 times in depth of body ;' 

 length of dorsal base contained 1.5 times in space between dorsal and 

 adipose fins ; adipose fin entirely over anal fin, its base somewhat longer 

 than base of dorsal; caudal fin longer than head, deeply forked, its 

 median rays less than 0.5 length of fin ; anal fin larger than dorsal, its 

 rays iv, 10, its longest ray 1.5 in head and its base 1.75 in head ; ventrals 



