NO.T230. APODAL FTSHES' OF JAPAX—JORDAX AXT) SXYDEH. 853 



One specimen 13^ inches long-. Type No. 04:68, Leland Stanford 

 Junior l^niversit}" Museuni. obtained b}^ Capt. Alan Owston at 

 Yaej^ama, Ishigaki Islands, in the southern Riukiu group. This 

 species is near to Z. erehennus, but has the backward insertion of the 

 dorsal characteric of L. v[i><troiiii. It is, however, clearly distinct 

 from T.. in/sfr<tiii!. and 0(|ually diftoreut from L. 'inyriasfcr. 



12. LEPTOCEPHALUS NYSTROMI Jordan and Snyder, new species. 



Conger margiiiatus (tunther, Shore Finhen, Challenger, 1880, }>. 7H, Inland Sea 

 of Japan. — Nystkom, Kong. Sven. Vet. Ak., XIII, 1887, j>. 47, Nagasaki; 

 not of Valenciennes.— IsHiKAWA, Prel. Cat. 1897, p. 7, Riukiu Islands. 



Head 1^ in trunk; head and trunk 1| in tail; mouth small, the max- 

 illary extending about to middle of ej^e, 3 in head; lower jaw much 

 shorter than upper; snout blunt, somewhat cavernous, 3^ in head; eye 

 1^ in snout, smaller in adidt; pectorals 3 in head; dorsal inserted over 

 middle of pectoral or a little before; distance from gill opening to 

 dorsal, 8 in head; dorsal and anal not especially elevated. 



Color very pale, brownish above, whitish below; dorsal and anal 





Flli. 5.— LEPTOCEPHAI.rS NYSTROMI. 



with a broad l)lack margin surrounding the tail; pectoral pale or 

 slightly dusky at base; lateral line a conspicuous ridge with about 3.5 

 pores before ^'(Mlt; these a little paler than body; nuchal pores not 

 evident. 



Southern Japan, north to Kobe, here described from the type. No. 

 Q4:'d*d^ Leland Stanford Junior University Museum, taken at Nagasaki. 

 The species has been confounded with L. inarg'matuH of Polynesia, 

 with which it agrees in the insertion of the dorsal. L. riKtrghuitus has 

 the pectoral l>lack at tip and the doi'sal tin higher. (Named for Edward 

 Nystrom, of the University of Upsala, in recognition of his excellent 

 work on the fishes of Nagasaki.) 



13. LEPTOCEPHALUS RET ROTINCTUS Jordan and Snyder, new species. 



Head 1^ in trunk; head and truidv \\ in tail; lower jaw short; snout 

 rather blunt, -i in head; eye 1\ in snout; mt)uth small, the maxillary 

 extending to opposite posterior part of eye, 2f in head; pectoral 

 pointed, 3^ in head; the dorsal inserted rather in front of its middle; 

 distance from gill opening to dorsal about 8 in head; dorsal and anal 



