Dr. A. Giintlier on new Fishes from Japan. 445 



the head, and equal to t.lie width of the interorbital space- 

 Maxillary not reaching to the front margin of the eye. The 

 length of the head equals its distance from the root of the 

 ventral, the origin of which is but slightly in advance of that 

 of the dorsal. Nearly all the scales are lost : only some of the 

 lateral line remain j they are much larger than the other 

 scales ; and on the tail, where the lateral line approaches the 

 loAver profile, these larger scales are separated from the anal 

 fin by one series of small scales only. Otherwise there is the 

 greatest similarity between this species, Halosaarus rostra- 

 tus, and H. Owenii. 

 {South of Japan. 



Congromurcena megastoma. 



The length of the head is two thirds of that of the trunk, 

 the tail being longer than the body ; upper jaw much pro- 

 jecting beyond the lower, rather pointed ; mouth extendmg far 

 behind the middle of the eye, which is large, two ninths or 

 one fifth of tlie length of the head, and nearly two thirds of 

 that of the snout ] posterior nostril a wide, round, open aper- 

 ture ; length of the pectoral fin one third of that of the head ; 

 the dorsal commences above the root of the pectoral ; vertical 

 fins with a light margin ; terminal portion of the tail black, 

 extremity of the fin white. 



Off Inosima. 



Synapliohranchus hathyhius. 



Mouth and dentition as in 8. pinnatus. Eye one half or 

 two thirds of the length of the snout. The length of the body 

 is contained only once and a fourth in that of the tail. The 

 dorsal fin commences above or immediately behind the 

 pectoral, which is only one third the length of the head. 

 Epidermoid productions quite rudimentary, lanceolate, im- 

 bedded in the skin ; cheeks naked. Dorsal and anal fins 

 low, especially the former. 



Uniform black. 



Middle of iSTorth Pacific ; south of Yeddo. Midway between 

 Cape of Good. Hope and Kerguelen's Land. 



Synaphohranchus affinis. 



Allied to 8. hrevidorsalis, from which it differs in the fol- 

 lowing points : — The length of the body is two fifths of that 

 of the tail ; root of the pectoral fin midway between the end 

 of the snout and the vent. Dorsal fin commencing at some 

 distance behind the vent. Pectoral of moderate length, rather 



