768 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



2. ELXIS Jordan and Fowler. 

 Elxlx JouDAN and KowLEU, new j,'enus {)ilL-ko)iis). 



T><k1v luodiM-atcly clono-ate, compressed; head elonoate, sometimes 

 depressed; ev(>s small; snout produced and rounded; mouth inferior, 

 with fleshy lips and four rostral, two maxillary, and two nasal ])arl)els, 

 none on the mandil)le; scales large and cycloid; lateral line incomplete: 

 caudal r()und(Hl, sometimes longer than the head; pectorals variable; 

 o-ill openings lateral; color variegated with l)lotches and mottlings, and I 

 usuallv a dark spot at base of caudal. Small loaches, of the waters of I 

 Japan. 



(/A-^z?, a trailing.) 



3. ELXIS NIKKONIS Jordan and Fowler, new species. 



Head ^ in length; depth 6^; D. S; A. 7; P. 12; V. 6; scales about 1 

 56; width of head li in its length; snout ?> in head; ijiterorbital space e 

 2i; pectoral li; ventral 1|; eye 2 in interorbital space. 



Fig. 1.— Elkis nikkonis. 



Body elongate and rather slender, the tail compressed. Head broad, Ij 

 depressed, and elongate; snout broad, depressed, rounded, and pro-' 

 duced; eyes small, anterior, lateral; mouth rather broad, inferior and 

 with fleshy lips; barbels 8, of which there is a nasal pair, and the maxil-i 

 lary pair is the longest, though there are no mandibulars; interorbital 

 space very broad and depressed like the top of the head, flattened: 

 nostrils large, in front of the eyes above. Gill openings rather large, 

 lateral and joined below the base of the pectoral in front. 



Scales on the body rather large and cycloid, none on the head. 



Origin of the dorsal nearer the tip of the caudal than the tip of tht 

 snout, about equal to the height of the body, and its length, wdiei 

 depressed, al)out three-fourths the length of the head; anal entirel} 

 behind dorsal and reaching two-thirds of the space between its origii 

 and the base of the caudal; caudal less than head, and rounded; pec i 

 torals small, low, reaching about two-fifths in the space between theii 

 origins and those of the ventrals; ventrals a little before the origin o 

 the dorsal, nearer the gill opening than the base of the caudal, an( 

 reaching more than half the distance between their own origins an( 

 that of the anal. Caudal peduncle long, equal to head without snout 



