262 bulletin: museum of comparative zoology. 



ing diverging lines, the fourth again less widely separated ; fourth pair wholly 

 in advance of vent. First ventral interspace longer than the second, the third 

 the shortest. 



Upper supra-anal just below the lateral line, vertically above vent or a little 

 anterior ; middle supra-anal vertically above fourth ventral, or a trifle anterior; 

 lower supra-anal in advance of and slightly below the middle supra-anal, 

 nearly over the second ventral. Upper supra-anal interspace less than two- 

 thirds the lower. 



Antero-anals, 8, forming a strongly curved line, the concavity downwards ; 

 first pair very closely approximating anal base, second and third widely diverg- 

 ing, the others again gradually approaching the anal base; last antero-anal 

 opposite base of the fourteenth anal ray. 



Posterolateral vertically above last antero-anal, immediately below lateral 

 line. 



Postero-anals, 6, the first opposite the base of the seventeenth anal ray ; 

 interval between last anal and first precaudal equalling that between first and 

 fifth postero-anals. 



Precaudals, 2, obliquely placed, the distance between them only slightly 

 greater than that separating the postero-anals. 



A short luminous body on back of tail, less than half as long as 

 diameter of eye, with no trace of overlapping scales in the present con- 

 dition of the specimen. 



