LOXODON MACRORHINUS. ■ 107 



LOXODON. 



Loxodon MuLLER & Henle, 1838, Charlesworth's mag., 2, p. 36; 1841, Plagios., p. 61. 



Head depressed. Body elongate, cavity less than half tne total length. 

 Mouth greatly arched. Teeth oblique, subequal, with smooth edges the outer 

 of which is deeply notched near the base. A short labial fold. Eye moderate, 

 pupil rounded, orbit elongate; nictitating membrane well developed, below the 

 eye. Spiracle pore-like, behind the orbit. Dorsal above the space between the 

 pectorals and the ventrals; second dorsal small, near the caudal. Caudal long, 

 pointed, subcaudal lobe large. A pit in front of the caudal above and another 

 below. A notch behind the subcaudal. 



Indian Ocean. 



Loxodon macrorhinus. 



Loxodon macrorhinus Muller & Henle, 1841, Plagios., p. 61, pi. 25; Dum^ril, 1865, Elasm., 395; 

 GuNTH., 1870, Cat. fishes Brit, raus., 8, p. 376. 



Form slender; head moderately broad; snout long, length from the mouth 

 equal to the distance from the angles of the latter to the hindmost gill opening, 

 blunted at the end. Nostrils midway from the mouth to the end of the snout; 

 nasal valve with a sharp lobe. Length of mouth about half the width; labial 

 folds short, around the angle. Teeth in §1 rows, oblique, cusp inclined outward 

 over a deep notch on the outer edge, not denticulated, median or symphyseal 

 more erect and smaller, others subequal. Orbit longer than wide, nearly as long 

 as the mouth, longer than the space between eye and nostril. Pectorals medium, 

 width less than two thirds of the length, reaching slightly beyond the origin of the 

 dorsal, angles rounded, hind margin a shallow concave. Dorsal smaller than the 

 pectorals, above the space between pectorals and ventrals, origin more than a 

 length of the base farther back than the end of the base of the pectoral, reaching 

 a vertical from the ventrals, upper angle produced, rounded, hinder angle acute, 

 rather short. Ventrals small, nearer to the first dorsal than to the anal. Anal 

 small, larger than the second dorsal, nearer to the caudal than to the ventrals, 

 lower angle rounded, hinder produced, hind margins with a shallow indentation. 

 Second dorsal much smaller than the anal, origin above the end of the anal base. 

 Caudal long, slender, acuminate, fins narrow, subcaudal lobe prominent. 



Total length of specimen described 17, snout to abdominal pores 7?, head, 

 to hindmost gill opening, 3|, caudal fins 5^ inches. 



Greyish brown, edges of fins lighter; whitish below, 



Mauritius; Indian Ocean. 



