478 PROCEEDINGS OF THE ACADEMY OF [May, 



Color in alcohol faded largely uniform pale brownish, scarcely paler 

 below. Upper surface of head and back above 1. 1. sprinkled with 

 minute dusky dots, forming a patch just above gill-opening at shoulder, 

 •and another elongated area beginning shortly posterior and extending 

 parallel with dorsal profile to caudal peduncle, where it is replaced a 

 little below by a narrow median streak or line of dusky. Fins all 

 pale brownish, a dusky blotch a little smaller than eye midway in 

 height, and sloping down to its base, on front of dorsal. Iris slaty. 



Length H inches. 



Type, No. 29, 472, A. N. S. P. Pei Ho River, at Tien Tsin, China. 

 N. F. Drake. From Stanford University. 



Also No. 29, 473, paratype, same data, agrees in most respects. 



This species is related to R. sineyisis Gunther, but differs in the 

 .-absence of a narrow intensely black-edged anal fin, and having 5 

 tubes in its lateral line. R. sinesis is said to have 1. 1. tubes 3, though 

 this character may be variable. From R. ocellatus (Kner) it differs 

 in the dark dorsal blotch, though otherwise mostly agrees. Jordan 

 and Seale's Shanghai example 1 differed in being almost uniform 

 •silvery and having 1. 1. tubes 3. From the Japanese species it also 

 differs, as R. oryzce Jordan and Seale, 2 R. tanago Tanaka 3 and R. miobuta 

 Tanaka 4 all have barbels. 



(Macalatus, spotted.) 



Acheilognathus lanceolatus (Schlegel). 



Head 3f to 4; depth 2\ to 3; D. usually iii, 8, i, often iii, 9, i, rarely 

 iii, 10, i; A. usually iii, 9, i or iii, 10, i, rarely iii, 11, i; scales usually 

 34, frequently 33, 35 or 36, seldom 32, rarely 31 + usually 2, seldom 

 3; usually 6 scales above 1. 1., rarely 5; 4 scales below 1. 1.; usually 

 16 predorsal scales, occasionally 15 or, 17, rarely 13, 14 or 18; snout 

 '3^ to 3f in head; eye 2i to 3i; maxillary 3 to 4; interorbital 2\ to 

 '2| ; teeth 5-5 ; length \\ to 34/ inches. L. Biwa at Matsubara, Kurume, 

 Katana (all Jordan and Synder), Jap. (Otaki.) A very large series. 



Acheilognathus limbatus (Schlegel). 



Head 3| to 4; depth 2\ to 3; D. usually iii, 10, i, often iii, 11, i, 

 or iii, 12, i or iii, 13, i; A. usually iii, 10, i, often iii, 9, i; scales 35 or 

 36 + usually 3, often 2; 6 scales above 1. 1.; usually 4 scales below 

 1. 1., rarely 5; 14 to 17 predorsal scales; snout 3^ to 4 in head; eye 

 2\ to 3^; maxillary Z\ to 4; interorbital 2f to 2\; teeth 5-5; length 



1 Proc. U. S. Nat. Mus., XXIX, 1905, p. 518. 



2 L. c, XXX, 1906, p. 144. 



3 Journ. College of Scl, XXVII, 1909, p, 10. 

 4 L. c.,p. 12. 



