490 PROCEEDINGS OF THE NATIONAL MUSEUM. voi.xxiii. 



FAMILY ENGRAULIDID^E. 



COILIA NASUS Schlegel. 



Sixteen specimens, 50 mm. to 140 in length. The length of the 

 premaxillarv, as Kner observes/ appears to be too variable to be of 

 taxonomic importance. In the smaller specimens it usually does not 

 extend to the limit of the opercle, but in the larger ones it frequently 

 exceeds it. 



FAMILY HEMIRAMPHID^E. 



HEMIRAMPHUS INTERMEDIUS (Cantor). 



Four specimens, 1. 130 to 160 mm. ♦ 



FAMILY TETEAODONTID^. 



LAGOCEPHALUS OCELLATUS (Osbeck). 



Two specimens, 1. T5 mm. 



FAMILY OPHIOCEPHALID^E. 



OPHIOCEPHALUS ARGUS Cantor. 



Two specimens, 1. 85 mm. Head 3^, snout 5^. Dorsal 47—18. 

 FAMILY POLYACANTHID^. 



POLYACANTHUS OPERCULARIS (Linnaeus). 



Three specimens, length about 40 mm. Uniform dusty brown, 

 darker above with a dark spot on opercle. 



FAMILY SALANGID^. 



SALANX HYALOCRANIUS Abbott, new species. 



This species, which is represented by a great number of specimens, 

 appears to be clearly distinct from Salanx chinensis Osbeck or Salanx 

 reevesii (Juvier and Valenciennes, which is apparently the same. It is 

 separated from both by the constantly greater number of both dorsal 

 and anal raj's. In ^S'. hyalocTanius both ventral and dorsal are more 

 anterior than in S. chinensis^ the dorsal in the latter lying above the 

 anal, while in S. hyalocranius it is in advance of that fin. In the 

 species at hand the distance from snout to ventrals is about 2| of body 

 length, while in Steindachner's figure of 8. chinensis^ it is about 2^. 



In the account of S. 7'eevesu, the dorsal base is said to lie its own 

 length in advance of anal. 



Description. — In Salanx ^nicrodon., as in S. cMnensis, the number of 

 pectoral ra3's is about 16. The teeth in S. mierodon are even smaller 

 than in S. chinensis. 



1 Novara Fische, p. 335. ^ Ichthy. Notizen. 



