5. EXOCCETUS. 277 



1. Arrhamphus sclerolepis. 



D. 13. A. 15. L. lat. 43. 

 This is a Hemirhamphus in every respect, except in having the 

 lower jaw short, as the young of that genus ; however, the lower jaw 

 projects conspicuously beyond the upper. The body is compressed, 

 its greatest depth being contained six times and a half in the total 

 length (without caudal) ; the length of the head is a little less than 

 one-fourth of the same. The triangular part of the upper jaw, 

 formed by the intermaxillaries, is a little broader than long. The 

 diameter of the eye is considerably less than the width of the inter- 

 orbital space, and two-thirds of the length of the postorbital part of 

 the head. The whole of the upper surface of the head, except the 

 intermaxillaries, is scaly. The insertion of the ventral is nearer to 

 the extremity of the snout than to the base of the caudal. Pectoral 

 fin two-thirds as long as the head. The dorsal commences opposite 

 the origin of the anal ; both fins are scaly at the base. Caudal fin 

 forked, its central rays being much longer than the eye. There are 

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

 and anal ; the one above the lowest is pierced by pores ; a slight keel 

 along each of the other series. Sides with a well-defined silvery 

 band, which is half as broad as a scale. 

 ? New Zealand. 



a. Nine inches long : has been in chloride of zinc. Old Collection. 

 6. Six inches long. Presented by the Royal College of Surgeons. 



5. EXOCCETUS*. 



Flying Fish. 



Exocoetus, AHedi, Genera, p. 8. 



et Cypsilurus, Sivamson. 



* Ventrals long. 



1. Exoccetus chloropterus, Cuv.&( Val. xix. p. 109.— 30°" 14' lat. S. ; 44° .'JO' 



long. W. 



2. mesogaster, Mitch. Trans. Lit. ^- Phil. Soc. New York, i. p. 448, pi. 5. 



fig. 3 (not Block). Exoccetus noveboracensis, Mitch. Amer. Month. 

 Mag. ii. 1817, p. 323 ; Dekay, New York Faun. Fish. p. 230, pi. 3(5. 

 fig. 114 (very bad); 1 Cuv.\ Val. xix. p. 100.— Atlantic Coasts of 

 North America. 



3. melanurus, Cuv. &( Val. xix. p. 101. — New York. 



4. gibbifrons, Cuv. &( Val. xix. p. 118. — Atlantic. 



5. Parra, lam. ,15; Exoc. mesogaster, Cuv. Sf Val. xix. p. 120, described as 



having a very short snout. — West Indies. 



6. Exoccetus liexazona, Bleek. Nat. Tydschr. Ned. Ind. 18.53, p. 206, and 



Ned. Tydschr. Dierk. iii. p. 118, is founded on a young example of 

 some species, having the body banded, as is not- unusual in the young 

 of this genus. — From the Sea of Banka. 



7. apus, Cuv. ^ Val. xix. p. 107, is also described from a young example, 



six inches long ; snout and head short, body deep. A. 19, appears to 

 be a misprint. — Chinese Sea. 



8. unicolor, C. ^ V. xix. p. 97.— Vanicoro.— D. 13. A. 1 1 . See Bleek. 



Ned. Tydschr. Bierk. iii. p. 1 10. 



9. agoo, Schleg. Faun. Japon. Poiss. p. 247. — Japan. 



10. poUeni, Bleek. Ned. Tydschr Dicrk.in. p. 130. — Atlantic. 



