18 THE VOYAGE OF H.M.S. CHALLENGER. 



Echeneis remora, L. 



The following specimens wore collected : — 



a-c. 3-5 inches long. Atlantic, from a Shark ; April 9, 1876. 



d. 6 inches long. Sandwich Islands, from a Shark; August 21, 1875. 

 e~k. 3-6^ inches long. North Pacific, from Sharks ; August 27, 1875. 

 I. 5 inches long. Atlantic, from Shark. 



Echeneis naucrutes, L 



Two specimens from St. Thomas, AVest Indies, and Kandavu. 



Echeneis albescens, Schleg. 



A specimen, if inches long, obtained north of New Guinea (Station 219), agrees 

 entirely with an adult, with this exception that the caudal fin is comparatively longer 

 and rounded, this fin having a vertical hind margin in the adult.^ 



Ilemcrocoetcs acanthorhi/nchus (Forst.). 



This fishis a littoral form, although it may occasionally be met far from land. Thus, 

 on the passage from Sydney to Wellington, a young specimen, 2^ inches long, was found 

 swimming close to the surface. The date of capture or the distance from the nearest 

 land was not noted. 



AntenncD'ixis marmoratus, Gthr. 



Of tliis truly pelagic genus only the following specimens were brought home :- — 

 a. 1 inch long. Between Tenerife and St. Thomas, West Indies. 

 h-v. §-1^ inches long. Gulf- weed, south of Bermuda. 



Trigla nmcvodactylus, n. sp. (PI. III. fig. G). 



A specimen, IG mm. long, obtained off the coast of Sierra Leone on the surface, on 

 April 11, 1876, shows some well-marked peculiarities. The snout is short, the forehead 

 deeply concave, the body transparent, without pigmentation, except on the margin of the 

 pectoral fin. The formula of the fins is — D. 9 | 15. A. 13. P. 11 | 3, which precludes 

 this fish from being referred to any of the known species of the genus. The fin-rays are 

 rather long, and the third of the pectoral fin is prolonged into a filament nearly as long 



'Sof Ann. and Mag. Nat. Hist., ser. 3, vol. v. ji. 397, 1860. 



