276 iSC'OUBUESOCID.E. 



B. Pectoral elonyate. 

 a. Beak rery louij : Euleptorhaniphus (&'j7/). 



38.. Hemirhamphus longirostris. 



Russell, ii. p. 62, pi. 178. 



Ileiiiirhainplius longirostris, Cm. Iteyne Anhn.; Cui: Sf Val. xix. p. 52; 

 Ciiv. Reyne Anim. 111. Foiss. pi. 98. 



D. 22. A. 20. P. 8. V. 6. 



Body slender and compressed. The length of the head, without 

 the prominent part of the lower jaw, is one-sixth of that of the 

 trunk, the length of the prominent part of the lower jaw one-fourth 

 of the total. Eye one-third of the length of the head, and equal to 

 the width of the intcrorbital space. Pectoral very long, with the 

 upper ray broad and compressed, its length being contained thrice 

 and two-thirds in that of the trunk ; ventral exceedingly small. 

 Caudal deeply forked. Sides with a silvery band. ( Val.) 



PondicheiTy. 



39. Hemirhamphus macrorhynchus. 

 Cuv. (^ Val. xix. p. 55, pi. 55G. 



D. 23. A. 22. 



The length of the head, without the prominent part of the lower 

 jaw, is one-sixth of that of the trunk, the length of the prominent 

 part of the lower jaw one-third of the total. Eye smaller than in 

 H. longirostris. The length of the pectoral is one-third of that of 

 the trunk. Ventrals small ; caudal forked. Sides with a silvery 

 band. {Val.) 



Long. 177° east (Paris) ; lat. 7° south. 



B. Beak shortened: Oxyporliamphus (Gill). 



40. Hemirhamphus cuspidatus. 



Hemirhamphus cuspidatus, Cuv. Sf Vol. xix. p. 5G, pi. 557. 

 D. 18. A. 12. 

 The prominent part of the lower jaw is very short, one- thirteenth 

 of the total length (with the caudal). Pectoral fin large, one-fourth 

 of the total length ; caudal forked, the lower lobe being twice as 

 long as the upper. ( Val.) 

 Indian Ocean. 



4. ARRHAMPHUS. 



Mouth formed as in Hemirhamphus, except that the lower jaw is 

 not produced into a beak ; both jaws with a narrow band of minute 

 teeth. Body elongate, slender, covered with rather large scales. 

 All the dorsal and anal rays connected by a membrane. Pectoral 

 fin of moderate length. Gill-openings very wide. 



Habitat — — ? 



