5. EXOC(ETUS. 287 



the barbels of the specimen examined by him were merely lacerated ; 

 and if this be the case, his fish may be identical with E. furcaius of 

 Mitchell. At all events, the fish represented by Mitchell is mnch 

 more similar to E. dussumieri than to E. nuttalUi, with which it has 

 been identified by Valenciennes. 



B. Barbels none. 

 1. Pectoral tvith an ohlique white band or band-like spot. 



20. Exoccetus lineatus. 



Exocoetus exiliens, Valenc. in Webb Sf Berthel. lies Canar. Poiss. p. 71 



(not Ploch). 

 Exocoetus lineatus, Cuv. 4" Vcd- six. p. 92. 



D. 12. A. 10-11. L. lat. 60-63. Vert. 33/18. 



The height of the body is contained six times and a half in the 

 total length (without caudal), the length of the head five times or 

 nearly five times. The depth of the head equals the distance be- 

 tween the extremity of the snout and the hind margin of the orbit. 

 Snout rather produced, equal in length to the diameter of the eye, 

 which is two-sevenths of the length of the head, and three-fourths 

 of the width of the interorbital space, which is quite flat. The 

 pectoral fin extends beyond the dorsal and anal, nearly to the rudi- 

 mentary rays of the caudal. Ventral fins nearly midway between 

 the head and the root of the caudal, extending beyond the middle 

 of the base of the anal. The dorsal commences far in advance of 

 the anal ; its anterior rays are long, half as long as the head. There 

 are from thirty-eight to forty-three scales between the occiput and 

 the origin of the dorsal, and seven longitudinal series of scales 

 between the origin of the dorsal and the lateral Une. Pectoral with 

 a narrowish oblique white band across its lower half, and with a 

 whitish edge. Ventral white, the middle rays greyish. Frequently 

 a series of small brownish spots along each series of scales on the 

 lower half of the body. 



Madeira. 



a, b, c. Sixteen inches long. 



d. Adult : skeleton. Madeira. Presented by Lady Franklin. 



21. Exoccetus specidiger. 



? Exoccetus speculiger, C'liv. Sf Val. xix. p. 94. 



Exoccetus speculiger, Bleek. Ned. Tydschr. Dierk. iii. p. 122. 



D. 11-12. A. 12-13. L. lat. 50. Vert. 28/17. 

 The height of the body is one-sixth or nearly one-seventh of the 

 total length (without caudal), the length of the head two-ninths. 

 The depth of the head equals the distance between the extremity of 

 the snout and the hind margin of the orbit. Snout rather produced, 

 scarcely equal in length to the diameter of the eye, which is one- 

 third of the length of the head, and less than the width of the inter- 

 orbital space, which is slightly concave. The pectoral fin extends 



