454 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 48. 



also scaleless. Lateral line on both sides with a long arch, abruptly 

 angulated, the portion behind angle steep; length of arch 0.17, eight- 

 tenths of this length being the distance from the anterior end of arch 

 to its angle. 



Dorsal beginning at the vertical of the anterior border of upper eye, 

 extended on the caudal peduncle, where it is deflected toward the 

 blind side; anal similar, anal spine weak; dorsal and anal reaching 

 their greatest height near posterior end, the third before the last 

 dorsal ray longest, its length 0.13, the fourth before the last anal 

 r ay longest, 0.13; caudal slightly pointed or doubly truncate; pec- 

 toral of blind side well developed, with 9 rays, that of eyed side with 

 10 rays; ventrals as in Citharus linguatula; left ventral on preanal 

 ridge, its base not extended, only slightly broader than the base of 

 right ventral; ventral of blind side the longer, its length 0.13, length 

 of left ventral 0.095; each ventral of 6 rays. 



Color light brown in alcohol; edges of caudal peduncle, where the 

 fins are deflected toward the blind side, with a pan* of very dark 

 brown spots (as in Citharus linguatula), a similar spot below the pos- 

 terior end of the arch in the lateral line; slightly mottled elsewhere. 

 Dorsal, anal, caudal, and left ventral spotted with the same color; 

 pectorals and right ventrals colorless. 



Paratype. — No. 22527, Stanford University Museum. A male, 57 

 mm. long, from the same locality as the type. Dorsal, 69; anal, 43; 

 scales, 40; head, 0.30; depth, 0.42; diameter of upper eye, 0.09; 

 length of interorbital ridge, 0.05; length of snout, 0.06; maxillary of 

 eyed side, 0.15; gill-rakers, 3 + 10. 



Only two specimens known. 



ARNOGLOSSUS JAPONICUS, new species. 

 Plate 25, fig. 2. 



This species has 64 scales along the lateral line, thus being inter- 

 mediate between the large-scaled species and the type of Anticitharus 

 with 75 scales (Anticitharus debilis Gtinther) - 1 It differs from the only 

 other known Japanese species, Arnoglossus violaceus Franz, 2 in the 

 larger scales and fewer fin rays. Arnoglossus violaceus has dorsal, 

 115; anal, 92; scales, 100. Arnoglossus tenuis Gunther, from Hong- 

 kong, China, has 48 scales in the lateral line. A. cacatuae Ogilby, 

 from Queensland has 64 scales in lateral line and 55 anal rays. 



Type-specimen. — Cat. No. 75671, U.S.N.M. A specimen 106 mm. 

 long, from Albatross station 4930, Vincennes Strait, south of Kiusiu, 

 Japan, collected on August 15, 1906, at a depth of 84 fathoms. 



Length of head, 0.28 of total length to base of caudal; depth, 0.40; 

 dorsal, 97 ; anal, 74 ; scales in 64 series along lateral line. 



» Shore Fishes, Challenger, p. 48, pi. 22, fig. 4. 



» Abh. bayer. Akad., 1910, p. 61, pi. 7, fig. 56 (perhaps not an Arnoglossus). 



